Highly Selective Dual-Mode Microstrip Bandpass Filters Using Triangular Patch Resonators
|
|
- Augustus Wilkerson
- 5 years ago
- Views:
Transcription
1 ADVANCED ELECTROMAGNETICS, VOL. 6, NO. 1, MARCH 2017 Highly Selective Dual-Mode Micostip Bandpass Filtes Using Tiangula Patch Resonatos K.G. Avinash, I. Sinivasa Rao School of Electonics Engineeing, VIT Univesity, Velloe, India Abstact In this pape, highly selective dual-mode micostip bandpass filtes ae poposed using hoizontal and vetical slots fomed on the suface of a tiangula patch. Slots ae esponsible fo splitting and coupling of dual degeneate modes and also facilitate in contolling thei esonant fequencies by vaying the dimensions of the slots. Hoizontal and vetical slots eoute the diection of the flow of cuent on the suface of the patch, which esults in switching of tansmission zeos. Two 2-pole and one 4-pole dual-mode filtes ae designed, simulated and fabicated. Two-pole filtes have tansmission zeos on side of the passband and fou-pole filte have tansmission zeos on both sides of the passband. The designed filtes exhibit a factional bandwidth of less than 7 % and thee is a good ageement between simulated and measued esults. 1. Intoduction Micostip filtes with asymmetic fequency esponse on eithe side of the passband ae needed in moden mobile and wieless communication systems. These filtes have bette selectivity, sensitivity and theeby impove the efficiency of the spectum utilization. The filtes of this kind find specific applications in duplexes and multiplexes. Geneally, asymmetic filtes ae ealized by using coss-coupled filte configuations [1-3]. Single mode HTS thin film filtes using pseudo-intedigital coupled lines ae employed to achieve asymmetical ejection pefomance [1]. Micostip squae open loop esonatos [2] ae used to intoduce eithe positive o negative coss coupling. This causes finite attenuation pole to appea eithe in lowe o uppe side of the passband. In [3] closed squae loop esonato with vaied petubation is used to achieve asymmetic fequency esponse utilizing dual degeneate modes. Dual-mode esonatos ae pefeed as the numbe of esonatos equied will become half fo a given degee which futhe educes the size of the filte. The basic geometies used fo the ealization of dual-mode filtes ae loop [4-7] and patch esonatos. Patch esonatos employing cicula, squae and tiangula shapes ae epoted [1], [8-9]. Patch esonatos have many inteesting featues such as high powe handling capability, lowe conducting losses and ease of fabication at millimete waves. Highly selective bandpass filtes wee ealized by using two diffeent esonant modes of tiangula patch with cascading topology [8]. Dual-mode opeation of equilateal tiangula patch esonato was theoetically studied in [10], and they poved that dual degeneate mode is obtained by otation and supeposition of fundamental mode. A tiangula patch bandpass filte with multi-mode opeation employing highe ode modes that utilized factal defection is ealized [11-12]. An isosceles tiangula patch esonato (ITPR) is pesented in [13] with cone s cut and slits to ealize wideband bandpass filte opeating in X-band. A ightangled tiangula patch esonato with factal hole is used to achieve single and dual-band bandpass esponses [14]. Diffeent types of DGS esonatos ae also used to ealize selective and tunable bandpass filtes as detailed in [15-18]. Vey few asymmetic filtes ae designed due to difficulties in contolling and aanging coss couplings in plana configuation and still thee is a scope to ealize such high selectivity filtes. In this pape, two-pole and fou-pole filtes ae designed using micostip tiangula patch employing hoizontal and vetical slots. These slots ae used to excite dual degeneate modes and also to contol the position of tansmission zeos on eithe side of the pass band. These slots will change the diection of the cuent flowing on the suface of the patch esulting in tansmission zeo switching fom lowe passband to uppe passband. The est of the pape is oganized as follows. Section II explains with design chaacteistics of dual-mode tiangula patch and its suface cuent distibution. Pototype filtes ae designed and simulated, in section III, with fist filte exhibiting tansmission zeo on lowe side of the passband, second filte showing tansmission zeo on uppe side of the passband and thid filte displays tansmission zeos on both sides of the passband. Expeimental esults ae pesented in section IV. Finally, conclusions ae given in section V. 2. Dual-mode Resonato Accoding to Wheele s cavity model, suounded by magnetic walls, thee ae no electomagnetic field vaiations along the thickness of the substate diection. Electic field E Z satisfies Helmholtz wave equation [19],
2 2 + + k 2 2 m, n, l EZ = 0 (1) x y km, n, l m mn n (2) 3a Whee E Z is given as Am, n, lt x, y, A m, n, l is constant based on the magnetic bounday conditions, k denotes m, n, l wave-numbe constant and T x, y is given as 2 x 2 2 m n y T x, y cos l.cos 3a 3 3a 2x 2 2 n l y + cos m.cos 3a 3 + 3a 2x 2 2 l m y cos n.cos (3) 3a 3 3a j Ez Ez Am, nt ( x, y), H x y o Figue 1: Coupling aangement between dual degeneate modes of a tiangula patch. H y j Ez, x E E H 0 (4) o x y z The esonant fequencies of dominant mode and highe ode modes of the tiangula patch ae given by 2c f 1,0, 1 (5) a 3 2c fm, n, l m mn n 3a 2 2 (6) Whee c is the velocity of light, is the elative dielectic constant of the substate, and a is the side dimension of the tiangle. We have chosen a as 12mm, which gives the fundamental esonant fequency of 5.16 GHz fo dominant mode with m = 1, n = 0. The equilateal tiangula patch is known to exhibit dual-mode popety [10]. In a tiangula patch esonato the coupling of two degeneated modes can be done by distubing the symmety of the esonato o by adding slot in the stuctue. The dual degeneate mode is obtained by otating the othe mode to 90 o in the coodinate system and supeposition of fundamental mode. Unlike the squae and cicula patches, these degeneate modes do not couple to each othe diectly, but couple to input and output pots by ceating two paallel paths fom input to output. The coupling aangement is shown in Figue 1. These two modes ae also efeed to as even and odd modes. A fullwave HFSS Eigen mode simulato is used fo simulating the stuctues. RT duiod substate with a dielectic constant of 10.2 and with a height of mm is used fo simulating the stuctues. The suface cuent distibution fo even and Figue 2: Suface cuent distibution of tiangula patch odd mode, even mode. an odd mode is depicted in Figue 2. Fo even mode, cuent is concentated in the uppe pat of the patch along the slant sides of the tiangle, wheeas fo odd mode, cuent is concentated aound base of the tiangle. The suface cuent of the even mode can be eoiented by adding a hoizontal slot nea to the base of the patch esonato and similaly the odd mode cuent can be eoiented by adding a vetical slot nea to the top of the patch esonato. The oientation of suface cuents fo specified hoizontal and vetical slots is shown in Figue 3. Fom the Figue 3, it is obseved that hoizontal slot does not distub odd mode, 78
3 wheeas it petubs the field of even mode. Similaly a vetical slot does not distub even mode, but it will alte the field of odd mode. We can notice that the diection of the cuent flowing on the suface of the patch is evesed, when we change fom hoizontal to vetical slot. This eouting of suface cuent distibution leads to switching of tansmission zeos. edges of the tiangle. It is also achieved by incopoating slots ove the suface of the patch. The dual esonant modes unde weak coupling ae shown in Figue 4. The esonant fequencies of degeneated modes can be contolled by vaying the slot lengths. Figues 5 and 5 shows the vaiation of esonant fequencies of odd and even modes with espect to vaiation in the hoizontal and vetical slot lengths. Fom Figue 5, it is obseved that by inceasing the length of the hoizontal slot, the esonant fequencies of even mode ae shifting fom 5.05 GHz to 5.25 GHz while the odd mode is unchanged. Fom Figue 5, it is found that vaiation of vetical slot affecting the odd mode fequencies wheeas even mode fequencies ae hadly affected. Figue 3: Suface cuent distibution of tiangula patch afte adding slots hoizontal slot vetical slot. Figue 5: Sepaation of dual esonant fequencies with hoizontal slot and vetical slot. Figue 4: Splitting of dual modes of the patch esonato. The splitting of dual modes can be done by defoming the equilateal tiangle to isosceles o cutting the 3. Bandpass Filte Design Based on the above discussions and simulations, two dualmode and one quaduple-mode filtes ae designed. All the filtes ae fed by 50 Ω feed lines at the bottom of the tiangula patch with paallel coupling. Ealie epoted wok [9] uses cascading of tiangula patch esonatos with changing the position of feed lines to achieve selective filtes. In contast to slant line feed, the poposed design utilizes hemline feed, and also slots ae used to position the tansmission zeos on eithe side of the cente fequency using a single equilateal tiangula patch, without changing 79
4 the position of feed lines. Figue 6 shows the fist dualmode filte (Filte A), which uses hoizontal slot placed at the bottom side of patch. Figue 6 depicts second dualmode filte (Filte B), which employs vetical slot placed at the top side of the patch. Figue 6(c) illustates quaduplemode filte which utilizes both hoizontal and vetical slots. The stuctual paametes of all the designed filtes ae given in Table 1. The side dimension of the tiangula patch a is chosen as 12 mm. All the thee filtes ae designed using commecially available full-wave EM simulato High Fequency Stuctue Simulato. Figue 6: Two-pole bandpass filte using hoizontal slot (Filte A), two-pole bandpass filte using vetical slot (Filte B), (c) fou-pole filte using both hoizontal and vetical slots (Filte C). Filte A Figue 7: Simulation esults fo vaious positions (slot_pos) of hoizontal slot fo a slot length (slot_ho) of 5.8 mm. Filte B Figue 8: Simulation esults fo vaious positions (slot_pos) of vetical slot fo a slot length (slot_ve) of 5.7 mm. (c) Filte C The length and position of both hoizontal and vetical slots is optimized by using full wave EM simulato. The lengths of slots ae appoximately aound λ/10. The position of slots affects both insetion and etun loss esponse of the filte. Figue 7 shows the simulated esults fo vaious slot positions of hoizontal slot, vaied above with espect to the slot position shown in Figue 6, keeping length of the hoizontal slot fixed at 5.8 mm in steps of 0.2 mm. Similaly Figue 8 depicts the simulation esults fo vaious positions of vetical slot, vaied above with espect to the slot position shown in Figue 6, keeping length of vetical slot constant by 5.7 mm in steps of 0.2 mm. The slot positions ae chosen in such way that both insetion and etun loss behave well, and the coesponding slot positions ae given in Table 1. 80
5 Table 1: Dimensions of the filte stuctues (mm). Filte type stip_wid slot_wid slot_ho slot_ve Gap len slot_pos slot_pos_h slot_pos_v A B C Results The filtes descibed above ae fabicated using RT Duiod substate with dielectic constant of 10.2 and substate height of mm. Coppe cladding is used with a thickness of mm. The photogaphs of the fabicated Filte A (c) Filte C Figue 9: Photogaphs of the fabicated two pole and fou pole filtes. filtes ae shown in Figue 9. Agilent s N99181A seies vecto netwok analyze is used to measue the esults. Figue 9 shows the dual-mode filte (Filte A) with hoizontal slot and the filte is esonating at 5.06 GHz. The simulated and measued esults of etun loss and insetion loss ae shown in Figue 10. Fom Figue 10 it is obseved that thee is a tansmission zeo at the lowe passband of the filte which is at a fequency of 4.91 GHz. The simulation esults indicate an insetion loss of 1.93 db and etun loss of db with a factional bandwidth of 4.94 %. The measued insetion and etun loss ae at 2.27 db and db espectively. Filte B 81
6 Figue 10: Simulated and measued esults of bandpass filte using hoizontal slot (Filte A) etun loss, insetion loss. A tansmission zeo at the uppe passband can be intoduced by eplacing the hoizontal slot with a vetical slot. Figue 9 shows the second dual-mode filte (Filte B) with a vetical slot and the filte poduces tansmission zeo at the uppe passband. Figue 11 and 11, shows the simulated and measued etun loss and insetion loss esponse of the Filte B. Simulation esults show that the cente fequency of the filte B is at 4.95 GHz with an insetion loss of 1.67 db and etun loss of db. The factional bandwidth of the filte is 4.84 %. The measued insetion and etun loss ae at 2.48 db and db espectively. The geneation of tansmission zeos on eithe side of the cente fequency i.e. uppe o lowe passband will poduce vey high selectivity on the espective passband which is a majo equiement fo many applications like diplexes and multiplexes. Bandpass filte with tansmission zeos on both sides of the passband esembles the ideal filte esponse which esults in high attenuation on both sides of the stopband. A fou-pole filte with tansmission zeos on both sides of the passband is shown in Figue 9(c). Hee we have combined the two patch Figue 11: Simulated and measued esults of bandpass filte using vetical slot (Filte B) etun loss, insetion loss. 82
7 Figue 12: Simulated and measued esults of bandpass filte using both hoizontal and vetical slots (Filte C) etun loss, insetion loss. exhibits a minimum stopband attenuation level of 10 db on both sides of stopband. The midband fequency of the filte is at 4.82 GHz and factional bandwidth is aound 6.43 %. The simulated and measued insetion losses ae 1.5 db and 2.40 db espectively. Similaly, simulated and measued etun losses of the filte ae 21.2 db and 20.2 db espectively. The small diffeences between simulated and measued esults may be due to dielectic and conducto losses, and as well as filte housing effect, since we have not enclosed the filte in metal box fo measuement. The designed filtes ae compaed with existing filte designs, and pefomance analysis is shown in Table 2. The poposed filtes can be used to ealize both symmetic and asymmetic filte esponses. esonatos with hoizontal and vetical slots to obtain tansmission zeos on both sides of passband. Fom the simulated the measued esults shown in Figue 12, the filte Table 2. Pefomance analysis of the designed filtes with ealie epoted patch esonato filtes. Refeence No. Patch Topology Side dimen sions (mm) Cente fequency (GHz) Insetion Loss (db) Factional Bandwidth (FBW) Fequency Response [20] Squae Symmetic [9] Tiangula [I] Tiangula [II] Asymmetic [21] Sta type [I] Sta type [II] Asymmetic [22] Cicula Symmetic [14] Tiangula Symmetic This wok Tiangula [I] Tiangula [II] Tiangula [III] Asymmetic & Symmetic 5. Conclusion Thee highly selective bandpass filtes ae designed using dual-mode tiangula patch esonatos. Hoizontal and vetical slots ae used to poduce tansmission zeos on eithe side of passband. Degeneated modes ae coupled by vaying the slot positions and dimensions. Two-pole filtes have tansmission zeos on one side of the passband wheeas quaduple-mode filte is moe selective with tansmission zeos on both sides of the passband. Fom the measued esults, it is obseved that insetion loss and etun loss esponse of all filtes ae close to bandwidth of less than 7 % associated with high selectivity and high powe handling capability. 83
8 ADVANCED ELECTROMAGNETICS, VOL. X, NO. X, MONTH 20XX Acknowledgement The authos ae thankful to Bapuji Institute of Engineeing & Technology, Davangee, Kanataka, India, fo thei kind suppot and encouagement towads the successful completion of this wok. Refeences [1] R.R Mansou, Design of supeconductive multiplexes using single mode and dual mode filtes, IEEE Tans. Micowave Theoy Tech., Vol. 42, pp , [2] J.S. Hong and M.J. Lancaste, Micostip coss-coupled tisection bandpass filtes with asymmetic fequency chaacteistics, IEE Poc. Micowave, Antennas Popag., Vo. 146, pp , [3] G.M. Eylimaz, C. Kapuz and A. Gou, Dual-Mode micostip filtes with adjustable tansmission zeos, IET Micow. Antennas Popag., Vol. 2, pp , [4] I. Wolff, Micostip bandpass filte using degeneate modes of a micostip ing esonato, Electonic Lett., Vol. 8, pp , [5] J.S. Hong and M.J. Lancaste, Bandpass chaacteistics of new dual mode micostip squae loop esonatos, Electonics Lett., Vol. 31, pp , [6] C. Lugo and J. Papapolymeou, Bandpass filte design using a micostip tiangula loop esonato with dual mode opeation, IEEE Micowave Wieless Compo. Lett., Vol. 15, pp , [7] J.S. Hong and M.J. Lancaste, Micostip bandpass filte using degeneate modes of a novel meande loop esonato, IEEE Micowave Guided wave Lett., Vol. 2, pp , [8] J.A. Cutis and S.J. Fiedziuszko, Miniatue dual mode micostip filtes, IEEE MTT-S Dig., pp , [9] J.S. Hong and M.J. Lancaste, Micostip tiangula patch esonato filtes, IEEE MTT- S Dig., pp , [10] J.S. Hong and Shuzhou Li, Theoy and expeiment of dual mode micostip tiangula patch esonatos and filtes, IEEE Tans. Micowave Theoy Tech., Vol. 52, pp , [13] J.-K. Xiao, Q.-X. Chu and H.-F. Huang, Tiangula esonato bandpass filte with tunable opeation, Pogess in Electomagnetic Reseach, Vol. 2, pp , [14] A.R.H. Alahwai.and A. Ismail, Compact wideband bandpass filte using single cones-cut isosceles tiangula patch esonato, Pogess in Electomagnetic Reseach C, Vol. 14, pp , [15] A. Boutejda, A. Elshebini, A. Balalem, J. Machacand A. S. Oma, Design of new DGS haipin micostip bandpass filte using coupling matix method, Poc. PIERS'2007, Pague, pp , [16] A. Boutejda, A.A. Ibahim, W.A.E. Ali, Design of compact size and tunable bandpass filte fo WLAN applications, Electonics Lettes, Vol. 52, No. 24, pp , [17] A. Boutejda, A new appoach to design compact tunable BPF stating fom simple LPF topology using a single T-DGS-esonato and ceamic capacitos, Micowave and Optical Technology Lettes, Vol. 58, No.5, pp , [18] A. Boutejda, Design of 5 GHz-compact econfiguable DGS-bandpass filte using vaacto-diode device and coupling matix technique, Micowave and Optical Technology Lettes, Vol, 58, No. 2, pp , [19] R. Gag, P. Bhatia, I. Bahl, Micostip Antenna Design Handbook, Boston-London: Atech House, pp [20] Lei Zhu, P-M Wecowski and Ke Wu, New plana dual-mode filte using coss-slotted patch esonato fo simultaneous size and loss eduction, IEEE Tans. Micow. Theoy Tech., Vol. 47, No. 5, pp , May [21] S.R. Zinka, Akhilesh Mohan and Animesh Biswas, Bandpass filte ealization using degeneate dual-modes of a new type of patch esonato fo significant size eduction, Poceedings of Asia Pacific Micowave Confeence, pp. 1-4, [22] Y.K. Singh and Ajay Chakabaty, Miniatuized dualmode cicula patch bandpass filtes with wide hamonic sepaation, IEEE Micow. Wieless Compo., Vol. 18, pp , Sept [11] J.-K. Xiao, Q.-X. Chu and S. Zhang, Novel micostip tiangula esonato bandpass filte with tansmission zeos and wide bands using factal-shaped defection, Pogess in Electomagnetic Reseach, Vol. 77, pp , 2007.
Design of A Circularly Polarized E-shaped Patch Antenna with Enhanced Bandwidth for 2.4 GHz WLAN Applications
VNU Jounal of Science: Comp. Science & Com. Eng., Vol. 31, No. 2 (2015) 1-7 Design of A Ciculaly Polaized E-shaped Patch Antenna with Enhanced Bandwidth fo 2.4 GHz WLAN Applications Hong Van Tam 1, Luong
More informationAnalysis of a Fractal Microstrip Patch Antenna
124 Analysis of a Factal Micostip Patch Antenna Vibha Rani Gupta and Nisha Gupta* Bila Institute of Technology, Mesa, Ranchi-835215, Jhakhand, India. vgupta@bitmesa.ac.in, ngupta@bitmesa.ac.in Abstact-
More informationDESIGN AND PARAMETRIC EVALUATION OF RECTANGULAR MICROSTRIP PATCH ANTENNA FOR GSM APPLICATION
DESIGN AND PARAMETRIC EVALUATION OF RECTANGULAR MICROSTRIP PATCH ANTENNA FOR GSM APPLICATION RAHUL T. DAHATONDE, SHANKAR B. DEOSARKAR Dept. of E & TC, D. Babasaheb Ambedka Technological Univesity, Lonee,
More informationStudy and Design of Dual Frequency High Gain and Conformal Microstrip Patch Antenna
, pp.236-243 http://dx.doi.og/10.14257/astl.2017.147.33 Study and Design of Dual Fequency High Gain and Confomal Micostip Patch Antenna S. Auna 1, K. Sinivasa Naik 2, J. Ramesh 2 and D. Madhu 2 1 Andha
More informationHexagonal Shaped Microstrip Patch Antenna for Satellite and Military Applications
Intenational Jounal of Engineeing and Advanced Technology (IJEAT) ISSN: 49 8958, Volume-7 Issue-5, June 08 Hexagonal Shaped Micostip Patch Antenna fo Satellite and Militay Applications Jayaenjini N, Unni
More informationCORNER TRUNCATED MICROSTRIP PATCH ANTENNA
CORNER TRUNCATED MICROSTRIP PATCH ANTENNA Nazia Hasan 1, D.S.C.Gupta 2 1 Student ECE Deptt. UTU Dehadun,Uttaakhand Technical Univesity, Dehadun(India) 2 ECE Deptt. DIT Dehadun,Dehadun Institute of Technology
More informationOptimal Design of Smart Mobile Terminal Antennas for Wireless Communication and Computing Systems
Optimal Design of Smat Mobile Teminal Antennas fo Wieless Communication and Computing Systems Autho Lu, Junwei, Yang, Shiyou Published 2007 Confeence Title 2007 4th Intenational Symposium on Electomagnetic
More informationGAMMA SHAPED MONOPOLE PATCH ANTENNA FOR TABLET PC
GAMMA SHAPED MONOPOLE PATCH ANTENNA FOR TABLET PC Islam Md. Rafiqul, Mohammad Shawkat Habib and Khaizuan Abdullah Depatment of Electical and Compute Engineeing, Intenational Islamic Univesity Malaysia,
More informationFeasibility of a triple mode, low SAR material coated antenna for mobile handsets
Loughboough Univesity Institutional Repositoy Feasibility of a tiple mode, low SAR mateial coated antenna fo mobile handsets This item was submitted to Loughboough Univesity's Institutional Repositoy by
More informationDESIGN OF PRINTED DIPOLE ANTENNA AND ITS APPLICATIONS IN UMTS MOBILE COMMUNICATION NETWORKS
DESIGN OF PRINTED DIPOLE ANTENNA AND ITS APPLICATIONS IN UMTS MOBILE COMMUNICATION NETWORKS Buak TOMBALOĞLU, Doğan DİBEKÇİ Kocaeli Univesity, Electonic and Communication Eng. Dept. Kocaeli. e-mail: buak.tombaloglu@tuktelekom.com.t,
More informationDESIGN OF DUAL BAND 1X2 MICROSTRIP PATCH ANTENNA ARRAY FOR GPS RECEIVERS
DESIGN OF DUAL BAND 1X2 MICROSTRIP PATCH ANTENNA ARRAY FOR GPS RECEIVERS S. Subhashini and S. Sadhish Pabhu B. S. Abdu Rahman Univesity, Chennai, India ABSTRACT An H shaped dual band mico-stip patch antenna
More informationInternational Journal of Engineering Research-Online A Peer Reviewed International Journal Articles available online
A Pee Reviewed Intenational Jounal Aticles available online http://www.ijoe.in REVIEW ARTICLE ISSN: 2321-7758 GAIN ENHANCEMENT OF MICROSTRIP ANTENNA USING SQUARE ARRAY RAHUL GUPTA 1, BRIJESH DHAKKAR 2,GARIMA
More informationDesign of Microstrip Antenna for Wireless Local Area Network
Available Online at www.ijcsmc.com Intenational Jounal of Compute Science and Mobile Computing A Monthly Jounal of Compute Science and Infomation Technology IJCSMC, Vol. 4, Issue. 4, Apil 205, pg.36 365
More informationLow Profile MIMO Diversity Antenna with Multiple Feed
2011, TextRoad Publication ISSN 2090-424X Jounal of Basic and Applied Scientific Reseach www.textoad.com Low Pofile MIMO Divesity Antenna with Multiple Feed Waqas Ahmad, Muhammad Wasif Nisa, Ehsan Ullan
More informationJournal of Applied Science and Agriculture
Jounal of Applied Science and Agicultue, 9(16) Octobe 214, Pages: 1-15 AENSI Jounals Jounal of Applied Science and Agicultue ISSN 1816-9112 Jounal home page: www.aensiweb.com/jasa A Design of New Bluetooth
More informationProposal of Circuit Breaker Type Disconnector for Surge Protective Device
Poposal of Cicuit Beake Type Disconnecto fo Suge Potective Device MASAO SHIBAYAMA, HITOSHI KIJIMA Polytechnic Univesity 2-32-1 Ogawanishi, Kodaia, Tokyo, 187-0035 JAPAN hkijima@uitec.ac.jp Abstact: - A
More informationTri-frequency Microcosmic Fractal Dipole Antenna with PBG Structure Used for 2G, 3G and 4G Systems. Bin LIN 1,*
Intenational Confeence on Compute Netwoks and Communication Technology (CNCT2016) Ti-fequency Micocosmic Factal Dipole Antenna with PBG Stuctue Used fo 2G, 3G and 4G Systems Bin LIN 1,* 1 Xiamen Univesity
More informationDesign and Characterization of Conformal Microstrip Antennas Integrated into 3D Orthogonal Woven Fabrics
Design and Chaacteization of Confomal Micostip Antennas Integated into 3D Othogonal Woven Fabics Xin Wang 1, Lan Yao 1, Fujun Xu 2, Dongchun Zhou 1, Yiping Qiu 1 1 College of Textiles, Donghua Univesity,
More informationCompact CP Feed Broadband Microstrip Patch Antenna for Wireless Applications
IOSR Jounal of Electonics and Communication Engineeing (IOSR-JECE) e-issn: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 1, Ve. II (Jan. 2014), PP 54-58 Compact CP Feed Boadband Micostip Patch Antenna fo
More informationDESIGN OF A UWB ANTENNA ARRAY FOR KA BAND OPERATION
DESIGN OF A UWB ANTENNA ARRAY FOR KA BAND OPERATION 1 Anuima Majumda, 2 Sisi Kuma Das, 3 Annapuna Das 1 Asst Pof, 2 Pof, 3 Pof 123 Depatment of Electonics & Communication Engineeing, 123 Guu Nanak Institute
More informationSpace Leaky Waves Propagating along a Pair of CRLH SIW Lines
RADIOENGINEERING, VOL. 27, NO. 3, SEPTEMBER 2018 633 Space Leaky Waves Popagating along a Pai of CRLH SIW Lines Rihem NOUMI 1, Jan MACHAC 2, Ali GHARSALLAH 1 1 Dept. of Physics, Faculty of Sciences of
More informationA Modified Bow Tie Antenna for RFID Application
SEI 9 5 th Intenational Coneence: Sciences o Electonic, echnologies o Inomation and elecommunications Mach -6, 9 UNISIA A Modiied Bow ie Antenna o FID Application Abdelhak FECHICHI*, Noueddine SBOUI* and
More informationElectrical characterization of thin film ferroelectric capacitors
1 Electical chaacteization of thin film feoelectic capacitos M. P. J. Tiggelman, K. Reimann, M. Klee, D. Beelen, W. Keu, J. Schmitz, and R. J. E. Hueting Abstact Tunable capacitos can be used to facilitate
More informationPSO driven RBFNN for design of equilateral triangular microstrip patch antenna
Indian Jounal of Radio & Space Physics Vol. 38, August 009, pp 33-37 PSO diven RBF fo design of equilateal tiangula micostip patch antenna Vidya Saga Chintakindi,$, Shyam Sunda Pattnaik,#,*, O P Bajpai
More informationA Coplanar Waveguide Fed Asymmetric Ground Frequency Reconfigurable Antenna
Received: Mach 28, 2018 293 A Coplana Waveguide Fed Asymmetic Gound Fequency Reconfiguable Antenna Maddela Vijaya Lakshmi 1, 2 * Padhasaadhi Pokkunui 3 Boddapati Taaka Phani Madhav 3 1 Depatment of Electonics
More informationAvailable online at ScienceDirect. Procedia Engineering 100 (2015 )
Available online at www.sciencediect.com ScienceDiect Pocedia Engineeing 1 (215 ) 1 14 25th DAAAM Intenational Symposium on Intelligent Manufactuing and Automation DAAAM 214 Measuement of Complex Pemittivity
More informationFor most of us, discoveries in the art are
Filtes and an Oscillato Using a New Solenoid Model A tansmission-line model enables a wide ange of filte and oscillato designs By Randy Rhea Eaglewae Fo most of us, discoveies in the at ae ae. My books
More informationThis article presents the
A Ciculaly Polaized 6 GHz Micostip Antenna Hee is a mm-wave antenna suitable fo WLAN systems By V. A. Volkov, M. D. Panes Asco, and V. D. Koolkov and R. G. Shifman Resonance This aticle pesents the design
More informationDesign and Performance Analysis of Compact MIMO Antenna by Mutual Coupling Suppression between Elements
Design and Pefomance Analysis of Compact MIMO Antenna by Mutual Coupling Suppession between Elements Jagadish M 1, T Ramya 2 Student 1, Assistant Pofesso (S.G) 2, Depatment of Electonics and Communication
More informationOptic Cable Tracking and Positioning Method Based on Distributed Optical Fiber Vibration Sensing
08 5th Intenational Confeence on Electical & Electonics Engineeing and Compute Science (ICEEECS 08) Optic Cable Tacking and Positioning Method Based on Distibuted Optical Fibe Vibation Sensing Zhang Chao,
More informationISSN: [Shinde * et al.,6(9): September, 2017] Impact Factor: 4.116
IJESRT INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY MINIATURIZATION OF MICROSTRIP PATCHANTENNA USING INTERCONNECTED HEXAGONAL RINGS OFDOUBLE NEGATIVE MATERIAL STRUCTURE Juhi Shinde
More informationLow-Complexity Time-Domain SNR Estimation for OFDM Systems
Low-Complexity Time-Domain SR Estimation fo OFDM Systems A. jaz, A.B. Awoseyila and B.G. Evans A low-complexity SR estimation algoithm fo OFDM systems in fequency-selective fading channels is poposed.
More informationANALYSIS OF CIRCULAR MICROSTRIP ANTENNA ON THICK SUBSTRATE
Jounal of Micowaves and Optoelectonics, Vol., N. o 5, July 00. 30 ANALYSIS OF CIRCULAR MICROSRIP ANENNA ON HICK SUBSRAE A. K. Vema and Nasimuddin Depatment of Electonic Science Univesity of Delhi South
More informationNumerical and Experimental Analysis of Microstrip Antennas Loaded with a Single DNG Resonator
Intenational Jounal of Electomagnetics and Applications 1, (): 6-1 DOI: 1.593/j.ijea.1. Numeical and Expeimental Analysis of Micostip Antennas Loaded with a Single DNG Resonato Fabio Ubani *, Luis D. Quinteo
More informationPerformance Analysis of Corporate Feed Rectangular Patch Element and Circular Patch Element 4x2 Microstrip Array Antennas
(IJACSA) Intenational Jounal of Advanced Compute Science and Applications, Vol., No.8, 011 Pefomance Analysis of Copoate Feed Rectangula Patch Element and Cicula Patch Element 4x Micostip Aay Antennas
More informationImprovement of the Frequency Characteristics for RFID Patch Antenna based on C-Shaped Split Ring Resonator
(IJACSA) Intenational Jounal of Advanced Compute Science and Applications, Vol. 9, No. 2, 218 Impovement of the Fequency Chaacteistics fo RFID Patch Antenna based on C-Shaped Split Ring Resonato Mahdi
More informationTriple Band Microstrip Patch Antenna with I Slot For Radar Altimeter Applications
IOSR Jounal of Electonics and Communication Engineeing (IOSR-JECE) e-issn: 78-834,p- ISSN: 78-8735.Volume, Issue 3, Ve. I (May-Jun.6), PP 537 www.iosjounals.og Tiple Band Micostip Patch Antenna with I
More informationSliding Mode Control for Half-Wave Zero Current Switching Quasi-Resonant Buck Converter
Sliding Mode Contol fo Half-Wave Zeo Cuent Switching Quasi-Resonant Buck Convete M. Ahmed, Student membe, IEEE, M. Kuisma, P. Silventoinen Abstact This pape focuses on the pactical implementation of sliding
More informationDesign of FIR Filter using Filter Response Masking Technique
Design of FIR Filte using Filte Response Masking Technique Sandeep Shivastava, Alok Jain, Ram Kuma Soni Abstact- In this pape autho is tying to implement Fequency esponse masking (FRM) technique. In this
More informationHISTORY AND PROGRESS OF THE TOW THOMAS BI-QUADRATIC FILTER. PART I. GENERATION AND OP AMP REALIZATIONS
Jounal of icuits, Systems, and omputes Vol. 7, No. (2008) 33 54 c Wold Scientific Publishing ompany HISTOY ND POGESS OF THE TOW THOMS BIQUDTI FILTE. PT I. GENETION ND OP MP ELIZTIONS HMED M. SOLIMN Electonics
More informationWIRELESS SENSORS EMBEDDED IN CONCRETE
7th Euopean Wokshop on Stuctual Health Monitoing July 8-11, 2014. La Cité, Nantes, Fance Moe Info at Open Access Database www.ndt.net/?id=17296 WIRELESS SENSORS EMBEDDED IN CONCRETE Amal Abbadi 1 Phd Student,
More informationDesign of an LLC Resonant Converter Using Genetic Algorithm
Design of an LLC Resonant Convete Using Genetic Algoithm H. H. Nien, C. K. Huang, S. K. Changchien, C. H Chan Dept. of Electical Engineeing, Chienkuo Technology Univesity E-mail: nien@ctu.edu.tw Dept,
More informationNear-field emission prediction of CESAME
Nea-field emission pediction of CESAME E. Sicad, S. Ben Dhia, E. Lamoueux INSA-GEI, 135 Av de Rangueil 31077 Toulouse Fance B. Vignon, L. Couau ST Micoelectonics, Cental R&D Colles, Fance Contact : etienne.sicad@insa-toulouse.f
More informationHelical Antenna Performance in Wideband Communications
Helical Antenna Pefomance in Wideband Communications Maja Šekelja 1, Zoan Blažević, Maino Maslać 3 1,,3 Univesity of Split, Faculty of Electical Engineeing, Mechanical Engineeing and Naval Achitectue,
More informationA New Method of VHF Antenna Gain Measurement Based on the Two-ray Interference Loss
7 nd Intenational Confeence on Atificial Intelligence and Engineeing Applications (AIEA 7) ISBN: 978--6595-485- A New Method of VH Antenna Gain Measuement Based on the Two-ay Intefeence Loss ZHIEI YANG,
More informationCHAPTER 2 DESIGN OF PLANAR MICROSTRIP ANTENNA ARRAYS AND MUTUAL COUPLING EFFECTS
CHAPTER DESIGN OF PLANAR MICROSTRIP ANTENNA ARRAYS AND MUTUAL COUPLING EFFECTS In patch antennas, chaacteistics such as high gain, beam scanning, o steeing capability ae possible only when discete patch
More information1 Performance and Cost
Pefomance and Cost Analysis and Reseach of Ai-Cooled Using Small Diamete Coppe Tubes Wu Yang, Li Changsheng and Deng Bin Abstact Replacing coppe tubes with aluminum tubes and using coppe tubes with smalle
More informationExperimental Investigation of Influence on Non-destructive Testing by Form of Eddy Current Sensor Probe
Expeimental Investigation of Influence on Non-destuctive Testing by Fom of Eddy Cuent Senso Pobe Fengyun Xie * and Jihui Zhou School of Mechanical and Electonical Engineeing, East China Jiaotong Univesity,
More informationN2-1. The Voltage Source. V = ε ri. The Current Source
DC Cicuit nalysis The simplest cicuits to undestand and analyze ae those that cay diect cuent (DC). n this note we continue ou study of DC cicuits with the topics of DC voltage and cuent souces, the idea
More informationAntenna fundamentals: With answers to questions and problems (See also Chapter 9 in the textbook.)
adio Technology Metopolia/A. Koivumäki Antenna fundamentals: With answes to questions and poblems (See also Chapte 9 in the textbook.) 1. a) Make up a definition fo the tem "antenna". Answe: One definition:
More informationA Novel Model for the Input Impedance of Coax- Fed Circular Microstrip Patch Antennas for CAD
Damascus Univ. Jounal Vol. -No. 5 Abboud A Novel Model o the Input Impedance o Coax- Fed Cicula Micostip Patch Antennas o CAD Abstact Faiz Abboud We pesent a Novel model o the input impedance o a cicula
More informationNear-field Computation and. Uncertainty Estimation using Basic. Cylindrical-Spherical Formulae
Nea-field Computation and Uncetainty Estimation using Basic Cylindical-Spheical Fomulae Poject... IEC 63 Subject... Basic Nea-Field Computation Document numbe... N/A Revision... 3 Autho... F.D. du Plessis
More informationFREQUENCY RECONFIGURABLE MICROSTRIP SLOT ANTENNA LOADED WITH VARACTOR DIODE
Intenational Jounal o Advanced Technology in Engineeing and Science www.ijates.com FREQUENCY RECONFIGURABLE MICROSTRIP SLOT ANTENNA LOADED WITH VARACTOR DIODE RitikaTandon 1, Tejbi Singh 1 M.Tech Schola,
More informationDigital Simulation of FM-ZCS-Quasi Resonant Converter Fed DD Servo Drive Using Matlab Simulink
SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol. 6, No. 2, Novembe 2009, 227-237 UDK: 621.314.1:621.376 Digital Simulation of FM-ZCS-Quasi Resonant Convete Fed DD Sevo Dive Using Matlab Simulink Kattamui
More informationMinimizing Ringing and Crosstalk
Minimizing Ringing and Cosstalk By Glen Dash, Ampyx LLC, GlenDash at alum.mit.edu Copyight 1998, 26 Ampyx LLC When viewed on a schematic, a wie is just a wie. Howeve, when isetimes shink to a few nanoseconds
More informationParameters of spinning AM reticles
Paametes of spinning AM eticles onald G. Digges, Cal E. Halfod, and Glenn D. Boeman A new method of obtaining amplitude modulation (AM) fo detemining taget location with spinning eticles is pesented. The
More informationAnalysis of the optimized low-nonlinearity lateral effect sensing detector
Jounal of hysics: Confeence Seies Analysis of the optimized low-nonlineaity lateal effect sensing detecto To cite this aticle: Saeed Olyaee et al J. hys.: Conf. Se. 76 4 Related content - Neual netwok
More informationFigure Geometry for Computing the Antenna Parameters.
Spheical Coodinate Systems Definitions Figue 1.2.1 Geomety fo Computing the Antenna Paametes. Antenna Radiation Patten: The distibution of adiated enegy fom an antenna ove a suface of constant adius centeed
More informationModified Compact High Gain Multiple Patch Slotted Microstrip Antenna for Multiband Wireless Applications
Intenational Jounal of Scientific & Engineeing Reseach Volume 2, Issue 7, July-2011 1 Modified Compact High Gain Multiple Patch Slotted Micostip Antenna fo Multiband Wieless Applications A. Beno, D.D.S.
More informationAnalysis and Implementation of LLC Burst Mode for Light Load Efficiency Improvement
Analysis and Implementation of LLC Bust Mode fo Light Load Efficiency Impovement Bin Wang, Xiaoni Xin, Stone Wu, Hongyang Wu, Jianping Ying Delta Powe Electonics Cente 238 Minxia Road, Caolu Industy Zone,
More informationParametric study of retangular patch antenna using denim textile material
Univesidade de São Paulo Biblioteca Digital da Podução Intelectual - BDPI Depatamento de Sistemas Eletônicos - EP/PSI Comunicações em Eventos - EP/PSI 014-03-6 Paametic study of etangula patch antenna
More information2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media,
2011 IEEE. Pesonal use of this mateial is pemitted. Pemission fom IEEE must be obtained fo all othe uses, in any cuent o futue media, including epinting/epublishing this mateial fo advetising o pomotional
More informationDesign of Broad-Beam Microstrip Reflectarray
Design of Boad-Beam Micostip Reflectaay PIYAPORN KRACHODNOK AND RANGSAN WONGSAN School of Telecommunication Engineeing, Institute of Engineeing Suanaee Univesity of Technology 111 Univesity Avenue, Muang
More informationwhere and are polynomials with real coefficients and of degrees m and n, respectively. Assume that and have no zero on axis.
function whee is an unknown constant epesents fo the un-modeled dynamics The pape investigates the position contol of electical moto dives that can be configued as stuctue of Fig 1 This poblem is fomulated
More informationOptimal Eccentricity of a Low Permittivity Integrated Lens for a High-Gain Beam-Steering Antenna
EuCAP 2011 - Convened Papes Optimal Eccenticity of a Low Pemittivity Integated Lens fo a High-Gain Beam-Steeing Antenna Aki Kattunen #, Juha Ala-Lauinaho #, Ronan Sauleau +, Antti V. Räisänen # # Aalto
More informationScienceDirect. Simplified Generation of Electromagnetic Field within EMC Immunity Test Area
Available online at www.sciencediect.com ScienceDiect Pocedia Engineeing 69 ( 014 ) 7 34 4th DAAAM Intenational Symposium on Intelligent Manufactuing and Automation, 013 Simplified Geneation of Electomagnetic
More informationAbsolute calibration of null correctors using twin computer-generated holograms
Absolute calibation of null coectos using twin compute-geneated hologams Poteep C.V. Mallik a, Rene Zehnde a, James H. Buge a, Alexande Poleshchuk b a College of Optical Sciences, The Univesity of Aizona,
More informationarxiv: v1 [physics.class-ph] 21 Oct 2009
Expeimental Studies of Antenna Miniatuization Using Magneto-Dielectic and Dielectic Mateials axiv:0910.4060v1 [physics.class-ph] 21 Oct 2009 Antti O. Kailainen 1, Pekka M. T. Ikonen 2, Constantin R. Simovski
More informationShort-Circuit Fault Protection Strategy of Parallel Three-phase Inverters
Shot-Cicuit Fault Potection Stategy of Paallel Thee-phase Invetes Hongliang Wang, Membe, IEEE, Xuejun Pei, Membe, IEEE, Yu Chen, Membe, IEEE,Yong Kang College of Electical and Electonics Engineeing Huazhong
More information(2) The resonant inductor current i Lr can be defined as, II. PROPOSED CONVERTER
A High Powe Density Soft Switching Bidiectional Convete Using Unified Resonant Cicuit Ratil H Ashique, Zainal Salam, Mohd Junaidi Abdul Aziz Depatment of Electical Engineeing, Univesity Technology Malaysia,
More informationUNCERTAINTY ESTIMATION OF SIZE-OF-SOURCE EFFECT MEASUREMENT FOR 650 NM RADIATION THERMOMETERS
XIX IMEKO Wold Congess Fundamental and Applied Metology Septembe 6 11, 29, Lisbon, Potugal UNCERTAINTY ESTIMATION OF SIZE-OF-SOURCE EFFECT MEASUREMENT FOR 65 NM RADIATION THERMOMETERS Fumihio Sakuma, Laina
More informationOn Implementation Possibilities of High-Voltage IGBTs in Resonant Converters
On Implementation Possibilities of High-Voltage IGBTs in Resonant Convetes Andei Blinov and Dmiti Vinnikov Tallinn Univesity of Technology, Ehitajate tee 5, 986 Tallinn, Estonia Abstact. The conventional
More informationAn Efficient Control Approach for DC-DC Buck-Boost Converter
2016 Published in 4th Intenational Symposium on Innovative Technologies in Engineeing and Science 3-5 Novembe 2016 (ISITES2016 Alanya/Antalya - Tukey) An Efficient Contol Appoach fo DC-DC Buck-Boost Convete
More informationMicrowave Finite Element Modeling Applications to Coupled Electromagnetic-Thermal Problems and Characterization of Dielectric Materials
Micowave Finite Element Modeling Applications to Coupled Electomagnetic-Themal Poblems and Chaacteization of Dielectic Mateials Hulusi Acikgoz, Yann Le Bihan, Olivie Meye, and Lionel Pichon Laboatoie de
More informationFault severity diagnosis of rolling element bearings based on kurtogram and envelope analysis
Fault seveity diagnosis of olling element beaings based on kutogam and envelope analysis Fengshou Gu, Xiange Tian, Zhi Chen, Tie Wang, Ibahim Rehab and Andew Ball Abstact Faults in olling element beaing
More informationInvestigation and Analysis of Inception Voltage and Field Distribution in Power Cables with Internal Cavities in Dielectric
Investigation and Analysis of Inception Voltage and Field Distibution in Powe Cables with Intenal Cavities in Dielectic A. A. Hossam-Eldin Electical Eng. Depatment Faculty of Engineeing Alexandia Univesity,
More informationOptimised Wireless Network Using Smart Mobile Terminal Antenna (SMTA) System
Optimised Wieless Netwok Using Smat Mobile Teminal Antenna (SMTA) System Autho Lu, Junwei, Sciven, Ian, Wate, Wayne Published 2010 Confeence Title Poceedings of IEEE APEMC2010 DOI https://doi.og/10.1109/apemc.2010.5475858
More informationA Study Of a Wide-Angle Scanning Phased Array Based On a High-Impedance Surface Ground Plane
1 A Study Of a Wide-Angle Scanning Phased Aay Based On a High-Impedance Suface Gound Plane Tian Lan, Qiu-Cui Li, Yu-Shen Dou, Xun-Ya Jiang axiv:1901.04895v1 [physics.app-ph] 15 Jan 2019 Abstact This pape
More informationAnalysis of the Radiation Resistance and Gain of Full-Wave Dipole Antenna for Different Feeding Design
Jounal of lectomagnetic Analysis and Applications, 01, 4, 35-4 http://dx.doi.og/10.436/jemaa.01.46033 Published Online June 01 (http://www.scirp.og/jounal/jemaa) 35 Analysis of the Radiation Resistance
More informationWireless Communication (Subject Code: 7EC3)
COMPUCOM INSTITUTE OF TECHNOLOGY & MANAGEMENT, JAIPUR (DEPARTMENT OF ELECTRONICS & COMMUNICATION) Notes Wieless Communication (Subject Code: 7EC3) Pepaed By: LOKESH KUMAR ARYA Class: B. Tech. IV Yea, VII
More informationRealistic Simulation of a Wireless Signal Propagation in an Urban Environment
Realistic Simulation of a Wieless Signal Popagation in an Uban Envionment Keyukuma J. Patel Univesity of Southen Queensland Toowoomba, Austalia e-mail: keyupatel@ieee.og Andew Y. J. Lee Nanyang Technological
More informationCyclic Constellation Mapping Method for PAPR Reduction in OFDM system
2013 8th Intenational Confeence on Communications and Netwoking in China (CHINACOM) Cyclic Constellation Mapping Method fo PAPR Reduction in OFDM system Yong Cheng, Jianhua Ge, Jun Hou, and Fengkui Gong
More informationEfficient Power Control for Broadcast in Wireless Communication Systems
Efficient Powe Contol fo Boadcast in Wieless Communication Systems A. T. Chonopoulos Compute Science Depatment Univesity of Texas at San Antonio San Antonio, TX Email:atc@cs.utsa.edu P. Cotae Depatment
More informationDemosaicking using Adaptive Bilateral Filters
Demosaicking using Adaptive Bilateal Filtes Ekine Akuiyibo Timothy Atobatele EE 362, Winte 2006 0. Abstact Digital cameas sample the continuous spectum using an aay of colo filtes such that each pixel
More informationINVESTIGATION OF CLOSE-TO-WALL WIRELESS SENSOR DEPLOYMENT USING 2D FINITE-DIFFERENCE TIME-DOMAIN MODELLING. Y. Wu and I. J.
2 nd Intenational Confeence on Wieless Communications in Undegound and Confined Aeas August 25-27, 2008 Val-d O - Québec - Canada INVESTIGATION OF CLOSE-TO-WALL WIRELESS SENSOR DEPLOYMENT USING 2D FINITE-DIFFERENCE
More informationQoE Enhancement of Audio Video IP Transmission with IEEE e EDCA in Mobile Ad Hoc Networks
QoE Enhancement of Audio Video IP Tansmission with IEEE 8.e in Mobile Ad Hoc Netwoks Toshio Nunome and Shuji Tasaka Depatment of Compute Science and Engineeing, Gaduate School of Engineeing, Nagoya Institute
More informationFlexible PVDF comb transducers for excitation of axisymmetric guided waves in pipe
Sensos and Actuatos A 100 (2002) 18 23 Flexible PVDF comb tansduces fo excitation of axisymmetic guided waves in pipe Thomas R. Hay *, Joseph L. Rose ESM Depatment, Pennsylvania State Univesity, 212 EES
More informationAntenna Miniaturization Based on Supperscattering Effect
512 JING-JING YANG, MING HUANG, FU-CHUN MAO, JING SUN, ANTENNA MINIATURIZATION BASED ON SUPPERSCATTERING Antenna Miniatuiation Based on Suppescatteing Effect Jing-jing YANG, Ming HUANG, Fu-chun MAO, Jing
More informationSchool of Electrical and Computer Engineering, Cornell University. ECE 303: Electromagnetic Fields and Waves. Fall 2007
School of Electical and Compute Engineeing, Conell Univesity ECE 303: Electomagnetic Fields and Waves Fall 007 Homewok 1 Due on Nov. 8, 007 by 5:00 PM Reading Assignments: i) Review the lectue notes. ii)
More informationDesign and Implementation of 4 - QAM VLSI Architecture for OFDM Communication
Design and Implementation of 4 - QAM VLSI Achitectue fo OFDM Communication R. Achitha 1, S. Bhagyalakshmi 2, V. Jaya Suthi 3, D. T. Menakadevi 4 U.G. Students, Depatment of ECE, Adhiyamaan College of Engineeing,
More informationTECHNICAL REPORT: CVEL Maximum Radiated Emission Calculator: Power Bus EMI Algorithm. Chentian Zhu and Dr. Todd Hubing. Clemson University
TECHNICAL REPORT: CVEL-13-053 Maximum Radiated Emission Calculato: Powe Bus EMI Algoithm Chentian Zhu and D. Todd Hubing Clemson Univesity Octobe 12, 2013 Abstact The Maximum Radiated Electomagnetic Emissions
More informationOn Solving TM 0n Modal Excitation in a Ka-Band Overmoded Circular Waveguide by the Conservation of Complex Power Technique
8 JOURNL OF ELECTRONIC SCIENCE ND TECHNOLOGY OF CHIN, VOL. 7, NO., JUNE 9 On Solving TM n Modal Excitation in a Ka-and Ovemoded Cicula Waveguide by the Consevation of Complex Powe Technique Feng Lan, Xi
More informationNoise Attenuation Due to Vegetation
Noise Attenuation Due to Vegetation Vasile BACRIA Politehnica Univesity of Timisoaa, Bd. M.Viteazu,1, 300222 Timisoaa, bacia@mec.upt.o Nicolae HERISANU Politehnica Univesity of Timisoaa, Bd. M. Viteazu,
More informationPerformance Analysis of Z-Source Inverter Considering Inductor Resistance
Pefomance Analysis of Z-Souce Invete Consideing Inducto Resistance Fatma A. Khea * and Essam Eddin M. Rashad ** Electic Powe and Machines Engineeing Depatment, Faculty of Engineeing, anta Univesity, anta,
More informationDesign and Performance Analysis of Corporate Feed Antenna Array for WLAN Application at 2.4 GHz
Intenational Jounal of Electical and Electonics Reseac ISSN 348-6988 (online) Vol. 4, Issue 3, pp: (140-146), Mont: July - Septembe 016, Available at: www.eseacpublis.com Design and Pefomance Analysis
More informationLAAS/GBAS Ground Reference Antenna With Enhanced Mitigation of Ground Multipath
LAAS/BAS ound Refeence Antenna With Enhanced Mitigation of ound Multipath Alfed R Lopez, BAE Systems BIORAPHY Alfed R Lopez is a Life Fellow of the IEEE He is a Hazeltine Fellow and Engineeing Fellow with
More informationIMPACT OF DIELECTRIC CONSTANT ON THE DIMENSION OF SQUARE MICROSTRIP PATCH L-BAND ANTENNA
ISSN: 78 7798 Intenational Jounal o Science, Engineeing and Technology Reseach (IJSETR) Volume 6, Issue 1, Januay 17 IMPACT OF DIEECTRIC CONSTANT ON THE DIMENSION OF SQUARE MICROSTRIP PATCH -BAND ANTENNA
More informationDistributive Radiation Characterization Based on the PEEC Method
Title Distibutive Radiation haacteization Based on the PEE Method Autho(s) ao, Y; Jiang, L; Ruehli, AE itation The IEEE Intenational Symposium on Electomagnetic ompatibility (EM), Raleigh, Noth aolina,
More informationA New Buck-Boost DC/DC Converter of High Efficiency by Soft Switching Technique
A New Buck-Boost D/D onvete of High Efficiency by Soft Switching Technique Dong-Kul Kwak, Seung-Ho Lee, and Do-Young Jung Pofessional Gaduate School of Disaste Pevention, Kangwon National Univesity, 45-711,
More informationDiscussion #7 Example Problem This problem illustrates how Fourier series are helpful tools for analyzing electronic circuits. Often in electronic
Discussion #7 Example Poblem This poblem illustates how Fouie seies ae helpful tools fo analyzing electonic cicuits. Often in electonic cicuits we need sinusoids of vaious fequencies But we may aleady
More information