Compact Microstrip UHF-RFID Tag Antenna on Metamaterial Loaded with Complementary Split-Ring Resonators
|
|
- Marvin Armstrong
- 5 years ago
- Views:
Transcription
1 Compact Microstrip UHF-RFID Tag Antenna on Metamaterial Loaded with Complementary Split-Ring Resonators Joao P. S. Dias, Fernando J. S. Moreira and Glaucio L. Ramos GAPTEM, Department of Electronic Engineering, Federal University of Minas Gerais; Belo Horizonte - MG, Brazil Federal University of Sao Joao del-rei, Ouro Branco - MG, Brazil jpengtelecom@gmail.com,fernandomoreira@ufmg.br,glopesr@gmail.com Abstract This paper presents the design of a compact UHF RFID tag antenna with a bent and rectangular microstrip patch. Additionally, it utilizes Complementary Split-Ring Resonators (CSSRs) in the ground plane in order to reduce the size of the antenna. The RFID tag is composed by a RO33 Rogers Substrate with the electric permittivity of 3. and an UCODE 7 SL3S124 chip from NXP Semiconductor. The size of the is RFID tag is 36.5 x 22.5 x.795 mm designed to operate with a frequency of 915 MHz. The performance of the proposed antenna was analyzed in terms of antenna gain and return loss through simulations in CST Microwave Studio software. The results show that the use of complementary split ring resonator with the RFID tag reduce the size of the antenna in 3 percent. Index Terms Microstrip Antennas; Radio Frequency Identification (RFID); Metamaterial; Split-Ring Resonators. I. INTRODUCTION Radio frequency identification (RFID) is a technology used to track and identify objects [1]. The RFID system has been used in various applications including supply chain management, transportation system, security, animal detection, disease prevention, logistics, access point system, road tolling, and business transaction [2]. The UHF-RFID band is between MHz defined by ITU (International Telecommunication Union), but each country has its own allocated frequency range. For example, the allocated frequency range in Brazil is between MHz, while in Europe is between MHz [3],[4]. A basic RFID system consists of RFID tag, RFID reader, computer host and communication network [5]. The RFID tag is the most relevant component in this system because it greatly impacts on the whole system. A typical RFID tag consists of an antenna and a microchip with internal read/write memory. The RFID system can be classified as active (with batteries), passive (batteryless) or semi-passive [6],[7]. The passive RFID system is based on backscattering method, in which the energy required to enable the chip comes from the system itself [8]. Most of the antennas for RFID tags are commonly fabricated as modified printed dipoles [8]. The chip has highly capacitive impedance. The antenna must be designed to have /17/$31. c 217 IEEE highly inductive input impedance in order to maximize the power transfer [3]. The design of a RFID tag requires compact antennas, and microstrip antennas are usable because they have lowprofile planar configuration, compatibility with Integrated Circuits (IC), and low fabrication cost. Artificial substrate based on Complementary Split-Ring Resonators (CSSRs) are more common in this process in the miniaturization of microstrip antennas [9]. The idea is to use a technique that reduces the width of the antenna without increasing the thickness of the substrate. In this paper, it is proposed a compact dipole UHF RFID tag antenna. Its patch geometry is shown in Figure 1 and discussed in [1]. It is composed of a bent microstrip patch (Meander- Line Antennas - MLA) and a rectangular microstrip patch. In the MLA the resonant frequencies are achieved at much lower frequencies than in the case of a straight dipole of the same length, at the expense of a narrow bandwidth and a low efficiency due to the cancellation of the currents, which flow opposite to one another. Consequently, the antenna gain is reduced [1],[11]. The MLAs are used as well as to easily match the chip impedance with the antenna impedance for maximum power transfer [11]. Fig. 1: Layout of the compact dipole UHF RFID tag antenna from front and side view [1].
2 -1 TABLE II: Parameters and Dimension of the SRR Slot Parameter Description Dimension [mm] r inner radius 2.3 S Thickness of the inner and outer ring 1 G Gap.7 D Distance between the rings Fig. 2: Return loss of the initial Microstrip Antenna. TABLE I: Geometrical Parameters of the Microstrip Antenna Parameter Dimension [mm] Parameter Dimension [mm] a 43.5 e 4.5 b 19 g 3.5 c 1 h.76 d 4.6 gap 2 The novel feature in the present work is the design of the microstrip RFID tag on a metamaterial with complementary split rings in the ground plane. The resonant frequency is displaced and bandwidth has slight reduction. Those structures were implemented in order to reduce the size of the RFID tag. The proposed antenna is analysed by CST MWS (Computer Simulation Technology Microwave Studio) based on the Finite Integration Technique (FIT) [12]. This paper is organized as follows. Section II describes the antenna design, Section III explains the results from the simulation and discussions, and, finally, conclusions and future works are summarized in Section IV. II. DESCRIPTION OF THE MICROSTRIP RFID TAG This microstrip RFID tag was designed to operate in the frequency of 915 MHz. The initial dimensions of the antenna Fig. 4: Geometry of the Split-Ring Resonators (SRR) slot. are 43.5 x 27 x.795 mm. The substrate used in the microstrip antenna design is Rogers Substrate RO33 with the electric permittivity (ǫ r ) of 3., tangent loss (tanδ) of.1, substrate thickness (h) of.76 mm, and printed on both sides of the substrate cooper layer traces with thickness (t) of.175 mm. The RFID chip attached to the center is from NXP Semiconductor with the input impedance of 12.8-j248 Ω at 915 MHz and a threshold power sensitivity of -21 dbm over a MHz band [13]. Table I shows the parameters and dimensions of the proposed initial microstrip RFID tag antenna. III. ANALYSIS AND DESIGN A. Antenna without Metamaterial Figure 2 presents the return loss (S-Parameters). In the return loss graph, it can be seen that the value minimum is of db in 915 MHz. The bandwidth ( S-parameters less than -1 db) is about 14.8 MHz. Figure 3 shows that the directivity of the initial antenna is 2.19 dbi. The total radiantion efficiency is db. Fig. 3: Radiation pattern of the initial antenna. Fig. 5: The back view of the four antennas with ground plane periodically etched CSRR. (a) Two SRR slot, (b) Three SRR slot, (c) Four SRR slot and (d) Six SRR slot.
3 -1-2 Antenna conventional Antenna with 2-SRR Antenna with 3-SRR Antenna with 4-SRR Antenna with 6-SRR -1-2 d = 3.2 mm d = 3.7 mm d = 4.2 mm Fig. 6: Comparison of the simulated return losses between the conventional antenna and the four CSRR loaded antenna. Fig. 9: Parametric study of return loss with the parameter d. B. Complementary Split-Ring Resonators a = 35 mm a = 36 mm a = 37 mm g = 2 mm g = 3 mm g = 4 mm Fig. 1: Parametric study of return loss with the parameter g. Fig. 7: Parametric study of return loss with the parameter a e = 2 mm e = 3 mm e = 4 mm -2-3 b = 16.5 mm b = 17.5 mm b = 18.5 mm Fig. 11: Parametric study of return loss with the parameter e. Fig. 8: Parametric study of return loss with different the parameter b. Figure 4 shows the geometry of the SRR slot. The parameters and dimensions are described in Table II. To evaluate the performance of the CSRRs, the ground plane of the initial antenna was notified, using four different configuration, as presented in Figure 5. Due to the insertion of the SRR structure in the ground plane, the resonance frequency of the microstrip antenna diminishes. Moreover, some physical parameters of the antenna are reduced in order to tune the antenna to the central frequency of the RFID band (915 MHz), favoring the
4 Fig. 14: Radiation pattern of the proposed antenna. Fig. 12: RFID tag antenna pieces: two metal faces and a substrate in the middle. miniaturization of the microstrip RFID tag antenna. Figure 6 shows the return loss for five different antennas. Four antennas loaded with CSRRs (Figure 5), as number of two, three, four and six SRR slot applied in the ground plane, respectively. And another antenna without the metamaterial structures (initial antenna). It is was noticed that the metamaterial structure shifts the antenna resonant frequency to the lower frequency, as expected. TABLE III: Parameters and Dimension of the CSRR loaded Antenna Parameter Dimension [mm] Parameter Dimension [mm] a 36.5 e 3 b 17.5 g 2 c 1 h.76 d 3.7 gap 2 C. Antenna with Metamaterial In order to tune the microstrip antenna, a parametric study is made with the relevant parameters of the microstrip RFID tag Fig. 13: Return loss of the microstrip RFID tag. (a,g,b,d and e) in the four antennas with CSRR but the one that showed greater capacity of miniaturization was the microstrip antenna with six SRR slot (Figure 12) and the result of their parametric analysis is illustrated from Figure 7 to Figure 11. The dimensions of the proposed antenna are described in the Table III Antenna conventional on Metal Antenna with CSRR on Metal Fig. 15: Return loss of the RFID tag in free space and on 1 x 1 mm aluminum plate. It can be seen from Figure 13 that the return loss (S- Parameters) is minimum in 915 MHz with the value of db, and the bandwidth is about 13 MHz. Figure 14 shows that the directivity of the proposed antenna is 1.93 dbi. The total efficiency is db. D. Applicability Analysis The RFID tags can be fixed on different types of objects. Therefore, it is analyzed the RFID tag mounted on four different surfaces (plastic, metal, paper and glass). For this simulation plates with the dimensions of 1 x 1 mm are used. Figure 15 shows a comparison of the return loss between antennas in free space and mounted on an aluminum plate. Figure 16 shows a comparison of the return loss between antennas in free space and mounted on a glass plate. Figure
5 -1-2 Antenna with CSRR on Glass Antenna conventional on Glass Fig. 16: Return loss of the RFID tag in free space and on 1 x 1 mm glass plate Antenna with CSRR on paper Antenna conventional on paper Fig. 17: Return loss of the RFID tag in free space and on 1 x 1 mm paper plate Antenna with CSRR on plastic Antenna conventional on plastic Fig. 18: Return loss of the RFID tag in free space and on 1 x 1 mm plastic plate. 17 shows a comparison of the return loss between antennas in free space and mounted on a paper plate. Figure 18 shows a comparison of the return loss between antennas in free space and mounted on a plastic plate. When the RFID tags was mounted on metal surfaces and glass it was observed a shift above 7 MHz at the resonant frequency. However the frequency displacement was more significant as the RFID tag was over aluminum plate, as expected. The RFID tag over plastic plate displaced the resonant frequency, in 4 MHz. When the RFID tag was mounted on surface of paper the shifted of the resonant frequency was insignificant. IV. CONCLUSION A compact dipole UHF-RFID tag antenna working at 915 MHz was presented. This proposed miniaturized RFID tag antenna by inserting a Complementary Split-Ring Resonators(CSRRs) in the ground plane. The antenna is composed of copper layer traces and Rogers 33 substrate with the dimension of 36.5 x 22.5 x.795 mm, and relative permittivity, ǫ r of 2.2. The simulation results proved that it is possible to reduce the size of the RFID tag antenna in 3 percent without compromising considerably the bandwidth. ACKNOWLEDGMENT This work was partidly supported by the brazilian agencies CAPES, CNPq, and FAPEMIG. REFERENCES [1] K. Finkenzeller, Introduction. RFID Handbook: Fundamentals and Applications in Contactless Smart Cards and Identification, 2nd ed (23) [2] K. Udo, and M. Fischer, Fully integrated passive UHF RFID transponder IC with 16.7-/spl mu/w minimum RF input power. IEEE Journal of Solid-State Circuits 38.1 (23): [3] N. M. Faudzi, M. T. Ali, I. Ismail, H. Jumaat and N. H. M. Sukaimi, Metal mountable UHF-RFID tag antenna with meander feed line and double T-match. Technology Management and Emerging Technologies (ISTMET), 214 International Symposium on (pp ) IEEE, 214. [4] K. S. Rao, P. V. Nikitin and S. F. Lam, Antenna design for UHF RFID tags: A review and a practical application. IEEE Transactions on antennas and propagation, (25): [5] N. M. Faudzi, M. T. Ali, I. Ismail, H. Jumaat and N. H. M. Sukaimi, Compact microstrip patch UHF-RFID tag antenna for metal object. Wireless Technology and Applications (ISWTA), 214 IEEE Symposium on. IEEE, 214. [6] E. W. T. Ngai, K. K. Moon, F. J. Riggins and Y. Y. Candace, RFID research: An academic literature review (199525) and future research directions. International Journal of Production Economics, (28): 512. [7] Z. N. Chen and X. Qing, Antennas for RFID applications. Antenna Technology (iwat), 21 International Workshop on. IEEE, 21. [8] G. Marrocco, The art of UHF RFID antenna design: Impedancematching and size-reduction techniques. IEEE antennas and propagation magazine 5.1 (28). [9] Y. Lee and Y. Hao, Characterization of microstrip patch antennas on metamaterial substrates loaded with complementary splitring resonators. Microwave and Optical Technology Letters 5.8 (28): [1] Y.U. Yanzhong, N.I. Jizhen and X. U. Zhixiang, Dual-band dipole antenna for 2.45 GHz and 5.8 GHz RFID tag application. Advanced Electromagnetics, v. 4, n. 1, p , 215. [11] MWS, CST, Computer Simulation Technology: Microwave Studio. Computer Simulation Technology Std (216). [12] NXP Semiconductor, Product Data Sheet SL3S124 UCODE 7, 216.
SMALL PROXIMITY COUPLED CERAMIC PATCH ANTENNA FOR UHF RFID TAG MOUNTABLE ON METALLIC OBJECTS
Progress In Electromagnetics Research C, Vol. 4, 129 138, 2008 SMALL PROXIMITY COUPLED CERAMIC PATCH ANTENNA FOR UHF RFID TAG MOUNTABLE ON METALLIC OBJECTS J.-S. Kim, W.-K. Choi, and G.-Y. Choi RFID/USN
More informationCitation Electromagnetics, 2012, v. 32 n. 4, p
Title Low-profile microstrip antenna with bandwidth enhancement for radio frequency identification applications Author(s) Yang, P; He, S; Li, Y; Jiang, L Citation Electromagnetics, 2012, v. 32 n. 4, p.
More informationDesign of Proximity Coupled UHF Band RFID Tag Patch Antenna for Metallic Objects
Design of Proximity Coupled UHF Band RFID Tag Patch Antenna for Metallic Objects 1 P.A.Angelena, 2 A.Sudhakar 1M.Tech Student, 2 Professor, ECE Dept RVR&JC College of Engineering, Chowdavaram, Guntur,
More informationA Compact Wideband Slot Antenna for Universal UHF RFID Reader
Progress In Electromagnetics Research Letters, Vol. 7, 7, 8 A Compact Wideband Slot Antenna for Universal UHF RFID Reader Waleed Abdelrahim and Quanyuan Feng * Abstract A compact wideband circularly polarized
More informationA Novel UHF RFID Dual-Band Tag Antenna with Inductively Coupled Feed Structure
2013 IEEE Wireless Communications and Networking Conference (WCNC): PHY A Novel UHF RFID Dual-Band Tag Antenna with Inductively Coupled Feed Structure Yejun He and Bing Zhao Shenzhen Key Lab of Advanced
More informationResearch Article A Miniaturized Meandered Dipole UHF RFID Tag Antenna for Flexible Application
Antennas and Propagation Volume 216, Article ID 2951659, 7 pages http://dx.doi.org/1.1155/216/2951659 Research Article A Miniaturized Meandered Dipole UHF RFID Tag Antenna for Flexible Application Xiuwei
More informationA compact stacked Quasi-fractal microstrip antenna for RFID applications
Journal of Communication Engineering, Vol. 6, No. 2, July-December 2017 1 A compact stacked Quasi-fractal microstrip antenna for RFID applications S. Rezaee Ahvanouee and J. Ghalibafan Department of Electrical
More informationMultiple-Arm Dipoles Reader Antenna for UHF RFID Near-Field Applications
Progress In Electromagnetics Research Letters, Vol. 74, 39 45, 218 Multiple-Arm Dipoles Reader Antenna for UHF RFID Near-Field Applications Kui Jin, Jingming Zheng *, Xiaoxiang He, Yang Yang, Jin Gao,
More informationDual-band Dipole Antenna for 2.45 GHz and 5.8 GHz RFID Tag Application
ADVANCED ELECTROMAGNETICS, VOL. 4, NO. 1, JUNE 215 Dual-band Dipole Antenna for 2.45 GHz and 5.8 GHz RFID Tag Application Yanzhong Yu, Jizhen Ni, Zhixiang Xu 1 College of Physics & Information Engineering,
More informationMETAMATERIAL INSPIRED PATCH ANTENNA WITH L-SHAPE SLOT LOADED GROUND PLANE FOR DUAL BAND (WIMAX/WLAN) APPLICATIONS
Progress In Electromagnetics Research Letters, Vol. 31, 35 43, 2012 METAMATERIAL INSPIRED PATCH ANTENNA WITH L-SHAPE SLOT LOADED GROUND PLANE FOR DUAL BAND (WIMAX/WLAN) APPLICATIONS J. Malik and M. V.
More informationDUAL WIDEBAND SPLIT-RING MONOPOLE ANTENNA DESIGN FOR WIRELESS APPLICATIONS
S.C. Basaran / IU-JEEE Vol. 11(1), (2011), 1287-1291 DUAL WIDEBAND SPLIT-RING MONOPOLE ANTENNA DESIGN FOR WIRELESS APPLICATIONS S. Cumhur Basaran Akdeniz University, Electrical and Electronics Eng. Dept,.
More informationA Long Range UHF RFID Tag for Metallic Objects
2858 PIERS Proceedings, Prague, Czech Republic, July 6 9, 2015 A Long Range UHF RFID Tag for Metallic Objects Manoel Vitório Barbin 1, Michel Daoud Yacoub 1, and Silvio Ernesto Barbin 2 1 Communications
More informationA Circularly Polarized Planar Antenna Modified for Passive UHF RFID
A Circularly Polarized Planar Antenna Modified for Passive UHF RFID Daniel D. Deavours Abstract The majority of RFID tags are linearly polarized dipole antennas but a few use a planar dual-dipole antenna
More informationDual-Band e-shaped Antenna for RFID Reader
Dual-Band e-shaped Antenna for RFID Reader Dual-Band e-shaped Antenna for RFID Reader M. Abu, E.E. Hussin, M. A. Amin and T.Z.M. Raus Faculty of Electronic and Computer Engineering Universiti Teknikal
More informationA Novel Compact Wide Band CPW fed Antenna for WLAN and RFID Applications
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-issn: 2278-2834,p- ISSN: 2278-8735.Volume 9, Issue 3, Ver. I (May - Jun. 2014), PP 78-82 A Novel Compact Wide Band CPW fed Antenna
More informationBandwidth Enhancement of Microstrip Patch Antenna with Octagonal Complementary Split Ring Resonator Array Structure
Bandwidth Enhancement of Microstrip Patch Antenna with Octagonal Complementary Split Ring Resonator Array Structure V G Ajay 1, Parvathy A R 2, Thomaskutty Mathew 3 1 Electronics Department, School of
More informationResearch Article Small-Size Wearable High-Efficiency TAG Antenna for UHF RFID of People
Hindawi Publishing Corporation International Journal of Antennas and Propagation Volume 2014, Article ID xx, 6 pages Research Article Small-Size Wearable High-Efficiency TAG Antenna for UHF RFID of People
More informationAbstract In this paper, the design of a multiple U-slotted
A Dual Band Microstrip Patch Antenna for WLAN and WiMAX Applications P. Krachodnok International Science Index, Electronics and Communication Engineering waset.org/publication/9998666 Abstract In this
More informationA CSRR Loaded Patch Antenna for Cognitive Radio Application
Circuits and Systems, 2016, 7, 1476-1485 Published Online June 2016 in SciRes. http://www.scirp.org/journal/cs http://dx.doi.org/10.4236/cs.2016.78129 A CSRR Loaded Patch Antenna for Cognitive Radio Application
More informationA Novel Planar Microstrip Antenna Design for UHF RFID
A Novel Planar Microstrip Antenna Design for UHF RFID Madhuri Eunni, Mutharasu Sivakumar, Daniel D.Deavours* Information and Telecommunications Technology Centre University of Kansas, Lawrence, KS 66045
More informationMetamaterial Inspired CPW Fed Compact Low-Pass Filter
Progress In Electromagnetics Research C, Vol. 57, 173 180, 2015 Metamaterial Inspired CPW Fed Compact Low-Pass Filter BasilJ.Paul 1, *, Shanta Mridula 1,BinuPaul 1, and Pezholil Mohanan 2 Abstract A metamaterial
More informationFractal-Based Triangular Slot Antennas with Broadband Circular Polarization for RFID Readers
Progress In Electromagnetics Research C, Vol. 51, 121 129, 2014 Fractal-Based Triangular Slot Antennas with Broadband Circular Polarization for RFID Readers Jianjun Wu *, Xueshi Ren, Zhaoxing Li, and Yingzeng
More informationKeywords: Array antenna; Metamaterial structure; Microstrip antenna; Split ring resonator
International Journal of Technology (2016) 4: 683-690 ISSN 2086-9614 IJTech 2016 LEFT-HANDED METAMATERIAL (LHM) STRUCTURE STACKED ON A TWO- ELEMENT MICROSTRIP ANTENNA ARRAY Fitri Yuli Zulkifli 1*, Nugroho
More informationDesign of a Compact Dual-band Microstrip RFID Reader Antenna
137 Design of a Compact Dual-band Microstrip RFID Reader Antenna Hafid TIZYI 1,*, Fatima RIOUCH 1, Abdellah NAJID 1, Abdelwahed TRIBAK 1, Angel Mediavilla 2 1 STRS Lab., National Institute of Posts and
More informationRCS Reduction of Patch Array Antenna by Complementary Split-Ring Resonators Structure
Progress In Electromagnetics Research C, Vol. 51, 95 101, 2014 RCS Reduction of Patch Array Antenna by Complementary Split-Ring Resonators Structure Jun Zheng 1, 2, Shaojun Fang 1, Yongtao Jia 3, *, and
More informationResearch Article Miniaturized Circularly Polarized Microstrip RFID Antenna Using Fractal Metamaterial
Antennas and Propagation Volume 3, Article ID 7357, pages http://dx.doi.org/.55/3/7357 Research Article Miniaturized Circularly Polarized Microstrip RFID Antenna Using Fractal Metamaterial Guo Liu, Liang
More informationSchool of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin, China
216 International Conference on Information Engineering and Communications Technology (IECT 216) ISBN: 978-1-6595-375-5 Miniaturization of Microstrip Patch Antenna by Using Two L-shaped Slots for UHF RFID
More informationFirst-Order Minkowski Fractal Circularly Polarized Slot Loop Antenna with Simple Feeding Network for UHF RFID Reader
Progress In Electromagnetics Research Letters, Vol. 77, 89 96, 218 First-Order Minkowski Fractal Circularly Polarized Slot Loop Antenna with Simple Feeding Network for UHF RFID Reader Xiuhui Yang 1, Quanyuan
More informationAntenna efficiency calculations for electrically small, RFID antennas
Antenna efficiency calculations for electrically small, RFID antennas Author Mohammadzadeh Galehdar, Amir, Thiel, David, O'Keefe, Steven Published 2007 Journal Title IEEE Antenna and Wireless Propagation
More informationDESIGN OF A NOVEL MICROSTRIP-FED DUAL-BAND SLOT ANTENNA FOR WLAN APPLICATIONS
Progress In Electromagnetics Research Letters, Vol. 13, 75 81, 2010 DESIGN OF A NOVEL MICROSTRIP-FED DUAL-BAND SLOT ANTENNA FOR WLAN APPLICATIONS S. Gai, Y.-C. Jiao, Y.-B. Yang, C.-Y. Li, and J.-G. Gong
More informationA SLIM WIDEBAND AND CONFORMAL UHF RFID TAG ANTENNA BASED ON U-SHAPED SLOTS FOR METALLIC OBJECTS
Progress In Electromagnetics Research C, Vol. 38, 141 151, 2013 A SLIM WIDEBAND AND CONFORMAL UHF RFID TAG ANTENNA BASED ON U-SHAPED SLOTS FOR METALLIC OBJECTS Tao Tang 1, 2, * and Guo Hong Du 1 1 Electronic
More informationDUAL-BAND LOW PROFILE DIRECTIONAL ANTENNA WITH HIGH IMPEDANCE SURFACE REFLECTOR
Progress In Electromagnetics Research Letters, Vol. 25, 67 75, 211 DUAL-BAND LOW PROFILE DIRECTIONAL ANTENNA WITH HIGH IMPEDANCE SURFACE REFLECTOR X. Mu *, W. Jiang, S.-X. Gong, and F.-W. Wang Science
More informationPLANAR ANTENNAS FOR PASSIVE UHF RFID TAG
Progress In Electromagnetics Research B, Vol. 19, 305 327, 2010 PLANAR ANTENNAS FOR PASSIVE UHF RFID TAG A. Kumar and D. Parkash Department of Electronics and Counication Engineering Haryana College of
More informationBroadband Circular Polarized Antenna Loaded with AMC Structure
Progress In Electromagnetics Research Letters, Vol. 76, 113 119, 2018 Broadband Circular Polarized Antenna Loaded with AMC Structure Yi Ren, Xiaofei Guo *,andchaoyili Abstract In this paper, a novel broadband
More informationCompact Triple-Band Monopole Antenna with Inverted-L Slots and SRR for WLAN/WiMAX Applications
Progress In Electromagnetics Research Letters, Vol. 55, 1 6, 2015 Compact Triple-Band Monopole Antenna with Inverted-L Slots and SRR for WLAN/WiMAX Applications Yuan Xu *, Cilei Zhang, Yingzeng Yin, and
More informationWunderlich Curve Fractal Dipole Antenna for Dual-band Wearable RFID Applications
University of Technology, Iraq From the SelectedWorks of Professor Jawad K. Ali 2018 Wunderlich Curve Fractal Dipole Antenna for Dual-band Wearable RFID Applications Ghufran M Hatem, Communication Engineering
More informationA Broadband Omnidirectional Antenna Array for Base Station
Progress In Electromagnetics Research C, Vol. 54, 95 101, 2014 A Broadband Omnidirectional Antenna Array for Base Station Bo Wang 1, *, Fushun Zhang 1,LiJiang 1, Qichang Li 2, and Jian Ren 1 Abstract A
More informationDual-Band UHF RFID Tag Antenna Using Two Eccentric Circular Rings
Progress In Electromagnetics Research M, Vol. 71, 127 136, 2018 Dual-Band UHF RFID Tag Antenna Using Two Eccentric Circular Rings Bidisha Barman, Sudhir Bhaskar *, and Amit Kumar Singh Abstract A low profile
More informationA COMPACT DUAL INVERTED C-SHAPED SLOTS ANTENNA FOR WLAN APPLICATIONS
Progress In Electromagnetics Research Letters, Vol. 17, 115 123, 2010 A COMPACT DUAL INVERTED C-SHAPED SLOTS ANTENNA FOR WLAN APPLICATIONS D. Xi, L. H. Wen, Y. Z. Yin, Z. Zhang, and Y. N. Mo National Laboratory
More informationA Thin Folded Dipole UHF RFID Tag Antenna with Shorting Pins for Metallic Objects
KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS VOL. 6, NO. 9, Sep 212 2253 Copyright 212 KSII A Thin Folded Dipole UHF RFID Tag Antenna with Shorting Pins for Metallic Objects Tao Tang and Guo-hong
More informationA Compact Dual Band Microstrip Antenna for GPS L1/GS Applications
A Compact Dual Band Microstrip Antenna for GPS L1/GS Applications Dhanashri Jadhav Student, Dept. of SENSE, VIT University, Chennai Campus, Kelambakkam Road, Chennai, India ABSTRACT: A miniaturized dual
More informationEfficient Metasurface Rectenna for Electromagnetic Wireless Power Transfer and Energy Harvesting
Progress In Electromagnetics Research, Vol. 161, 35 40, 2018 Efficient Metasurface Rectenna for Electromagnetic Wireless Power Transfer and Energy Harvesting Mohamed El Badawe and Omar M. Ramahi * Abstract
More informationA MINIATURIZED UWB BPF BASED ON NOVEL SCRLH TRANSMISSION LINE STRUCTURE
Progress In Electromagnetics Research Letters, Vol. 19, 67 73, 2010 A MINIATURIZED UWB BPF BASED ON NOVEL SCRLH TRANSMISSION LINE STRUCTURE J.-K. Wang and Y.-J. Zhao College of Information Science and
More informationDesign and Analysis of Rectangular Microstrip Patch Antenna using Metamaterial for Wimax Application at 3.5GHz
Design and Analysis of Rectangular Microstrip Patch Antenna using Metamaterial for Wimax Application at 3.5GHz Rekha Kumari Bagri M.Tech scholar, Department of Electronics and Communication Engineering
More informationTriple Band X Shape Microstrip Patch Antenna for Ku/K Band Applications
Modern Applied Science; Vol. 7, No. 8; 2013 ISSN 1913-1844 E-ISSN 1913-1852 Published by Canadian Center of Science and Education Triple Band X Shape Microstrip Patch Antenna for Ku/K Band Applications
More informationTRIPLE-BAND OMNI-DIRECTIONAL ANTENNA FOR WLAN APPLICATION
Progress In Electromagnetics Research, PIER 76, 477 484, 2007 TRIPLE-BAND OMNI-DIRECTIONAL ANTENNA FOR WLAN APPLICATION Y.-J. Wu, B.-H. Sun, J.-F. Li, and Q.-Z. Liu National Key Laboratory of Antennas
More informationA WIDEBAND TWIN-DIAMOND-SHAPED CIRCULARLY POLARIZED PATCH ANTENNA WITH GAP-COUPLED FEED
Progress In Electromagnetics Research, Vol. 139, 15 24, 2013 A WIDEBAND TWIN-DIAMOND-SHAPED CIRCULARLY POLARIZED PATCH ANTENNA WITH GAP-COUPLED FEED Xuehui Li *, Xueshi Ren, Yingzeng Yin, Lu Chen, and
More informationStudy of Microstrip Antenna Behavior with Metamaterial Substrate of SRR Type Combined with TW
Study of Microstrip Antenna Behavior with Metamaterial Substrate of SRR Type Combined with TW JOSÉ LUCAS DA SILVA 1, HUMBERTO CÉSAR CHAVES FERNANDES, HUMBERTO DIONÍSIO DE ANDRADE 3 1, Department of Electrical
More informationOptimization of the Radiation Performances of Square Shaped Patch Antenna for RFID Reader
Optimization of the Radiation Performances of Square Shaped Patch Antenna for RFID Reader ALI EL ALAMI 1, SAAD DOSSE BENNANI 2, ABDELLATIF SLIMANI 3 1 University Sidi Mohamed Ben Abdellah, Higher School
More informationA dual-band antenna for wireless USB dongle applications
Title A dual-band antenna for wireless USB dongle applications Author(s) Sun, X; Cheung, SW; Yuk, TI Citation The 2013 International Workshop on Antenna Technology (iwat 2013), Karlsruhe, Germany, 4-6
More informationA Planar Wideband Microstrip Patch Antenna for UHF RFID Tag
Proceeding of the 013 IEEE International Conference on Space Science and Communication (IconSpace), 1-3 July 013, Melaka, Malaysia A Planar Wideband Microstrip Patch Antenna for UHF RFID Tag M. S. R. Bashri
More informationH. Kimouche * and H. Zemmour Microwaves and Radar Laboratory, Ecole Militaire Polytechnique, Bordj El Bahri, Algeria
Progress In Electromagnetics Research Letters, Vol. 26, 105 114, 2011 A COMPACT FRACTAL DIPOLE ANTENNA FOR 915 MHz AND 2.4 GHz RFID TAG APPLICATIONS H. Kimouche * and H. Zemmour Microwaves and Radar Laboratory,
More informationWearable Sierpinski Dragon Fractal Patch Antenna for RFID Applications
University of Technology, Iraq From the SelectedWorks of Professor Jawad K. Ali December, 2014 Wearable Sierpinski Dragon Fractal Patch Antenna for RFID Applications Ghufran M Hatem, Technical College,
More informationMiniaturization of Branch-Line Coupler Using Composite Right/Left-Handed Transmission Lines with Novel Meander-shaped-slots CSSRR
66 H. Y. ZENG, G. M. WANG, ET AL., MINIATURIZATION OF BRANCH-LINE COUPLER USING CRLH-TL WITH NOVEL MSSS CSSRR Miniaturization of Branch-Line Coupler Using Composite Right/Left-Handed Transmission Lines
More informationA DUAL-BAND CIRCULAR SLOT ANTENNA WITH AN OFFSET MICROSTRIP-FED LINE FOR PCS, UMTS, IMT-2000, ISM, BLUETOOTH, RFID AND WLAN APPLI- CATIONS
Progress In Electromagnetics Research Letters, Vol. 16, 1 10, 2010 A DUAL-BAND CIRCULAR SLOT ANTENNA WITH AN OFFSET MICROSTRIP-FED LINE FOR PCS, UMTS, IMT-2000, ISM, BLUETOOTH, RFID AND WLAN APPLI- CATIONS
More informationDesign of Integrated Triple Band Notched for Ultra-Wide Band Microstrip Antenna
Journal of Electromagnetic Analysis and Applications, 2015, 7, 96-106 Published Online March 2015 in SciRes. http://www.scirp.org/journal/jemaa http://dx.doi.org/10.4236/jemaa.2015.73011 Design of Integrated
More informationCompact UWB Planar Antenna with Triple Band EMI Reduction Characteristics for WiMAX/WLAN/X-Band Satellite Downlink Frequency
Progress In Electromagnetics Research M, Vol. 1, 13 131, 17 Compact UWB Planar Antenna with Triple Band EMI Reduction Characteristics for WiMAX/WLAN/X-Band Satellite Downlink Frequency Priyanka Usha *
More informationDesign of Rectangular-Cut Circular Disc UWB Antenna with Band-Notched Characteristics
Design of Rectangular-Cut Circular Disc UWB Antenna with Band-Notched Characteristics Swapnil Thorat PICT, Pune-411043,India Email:swapnil.world01@gmail.com Raj Kumar DIAT (Deemed University), Girinagar,
More informationDesign of A New Universal Reader RFID Antenna Eye-Shaped in UHF Band
Design of A New Universal Reader RFID Antenna Eye-Shaped in UHF Band Mohamed Taouzari 1, Ahmed Mouhsen 1, Jamal El Aoufi 1, Jamal Zbitou 2, Otman El Marabat 3 1 Faculty of Science and Technical, University
More informationA Triangular Patch Antenna for UHF Band With Microstrip Feed Line for RFID Applications Twinkle Kundu 1 and Davinder Parkash 2
A Triangular Patch Antenna for UHF Band With Microstrip Feed Line for RFID Applications Twinkle Kundu 1 and Davinder Parkash 1 M.Tech. Student, Assoc. Prof, ECE Deptt. Haryana College of Technology & Management,
More informationCHIPLESS RADIO FREQUENCY IDENTIFICATION TAG WITH HIGH ENCODING CAPACITY BASED ON THREE CODING LEVELS
CHIPLESS RADIO FREQUENCY IDENTIFICATION TAG WITH HIGH ENCODING CAPACITY BASED ON THREE CODING LEVELS O. J. Ibrahim,, Alyani Ismail, Nor Kamariah and H. Adam Department of Communications and Network Engineering,
More informationA MINIATURIZED LOWPASS/BANDPASS FILTER US- ING DOUBLE ARROW HEAD DEFECTED GROUND STRUCTURE WITH CENTERED ETCHED ELLIPSE
Progress In Electromagnetics Research Letters, Vol. 24, 99 107, 2011 A MINIATURIZED LOWPASS/BANDPASS FILTER US- ING DOUBLE ARROW HEAD DEFECTED GROUND STRUCTURE WITH CENTERED ETCHED ELLIPSE M. H. Al Sharkawy
More informationA Fractal Circular Polarized RFID Tag Antenna
Cent. Eur. J. Eng. 3(3) 2013 446-450 DOI: 10.2478/s13531-012-0072-7 Central European Journal of Engineering A Fractal Circular Polarized RFID Tag Antenna Research Article Guesmi Chaouki 1, Abdelhak Ferchichi
More informationDESIGN OF DUAL BAND NOTCHED ULTRA WIDEBAND ANTENNA USING (U-W) SHAPED SLOTS
DESIGN OF DUAL BAND NOTCHED ULTRA WIDEBAND ANTENNA USING (U-W) SHAPED SLOTS Mohammed Shihab Ahmed, Md Rafiqul Islam, and Sheroz Khan Department of Electrical and Computer Engineering, International Islamic
More informationUWB ANTENNA WITH DUAL BAND REJECTION FOR WLAN/WIMAX BANDS USING CSRRs
Progress In Electromagnetics Research Letters, Vol. 26, 69 78, 2011 UWB ANTENNA WITH DUAL BAND REJECTION FOR WLAN/WIMAX BANDS USING CSRRs H.-Y. Lai *, Z.-Y. Lei, Y.-J. Xie, G.-L. Ning, and K. Yang Science
More informationMETAMATERIAL BASED NOVEL DUAL BAND ANTENNA
METAMATERIAL BASED NOVEL DUAL BAND ANTENNA Er.Maninder Singh 1, Er.Ravinder Kumar 2, Er.Neeraj Kumar Sharma 3 1, 2 & 3 Assistant Professor at Department of ECE, Saint Soldier Institute of Engineering &
More informationA Compact Microstrip Antenna for Ultra Wideband Applications
European Journal of Scientific Research ISSN 1450-216X Vol.67 No.1 (2011), pp. 45-51 EuroJournals Publishing, Inc. 2011 http://www.europeanjournalofscientificresearch.com A Compact Microstrip Antenna for
More informationDESIGN AND ANALYSIS OF RECTANGULAR MICROSTRIP PATCH ANTENNA USING METAMATERIAL FOR BETTER EFFICIENCY
DESIGN AND ANALYSIS OF RECTANGULAR MICROSTRIP PATCH ANTENNA USING METAMATERIAL FOR BETTER EFFICIENCY Gourav Singh Rajput, Department of Electronics, Madhav Institute of Technology and Science Gwalior,
More informationCompact Broadband End-Fire Antenna with Metamaterial Transmission Line
Progress In Electromagnetics Research Letters, Vol. 73, 37 44, 2018 Compact Broadband End-Fire Antenna with Metamaterial Transmission Line Liang-Yuan Liu * and Jing-Qi Lu Abstract A broadband end-fire
More informationInternational Workshop on Antenna Technology: Small Antennas and Novel Metamaterials Proceedings. Copyright IEEE.
Title UWB antenna using offset feeding and slotted ground plane for on-body communications Author(s) Sun, Y; Lui, L; Cheung, SW; Yuk, TI Citation The 2013 International Workshop on Antenna Technology (iwat
More informationAn MNG-TL Loop Antenna for UHF Near-Field RFID Applications
Progress In Electromagnetics Research Letters, Vol. 52, 79 85, 215 An MNG-TL Loop Antenna for UHF Near-Field RFID Applications Hu Liu *, Ying Liu, Ming Wei, and Shuxi Gong Abstract A loop antenna is designed
More informationAn Annular-Ring Microstrip Patch Antenna for Multiband Applications
An Annular-Ring Microstrip Patch for Multiband Applications Neha Gupta M.Tech. Student, Dept. of ECE Ludhiana College of Engineering and Technology, PTU Ludhiana, Punjab, India Ramanjeet Singh Asstt. Prof.,
More informationDesign and Simulation of Metamaterial in Compact Broadband Microstrip Patch Antenna for Wireless Router
ISSN: 2278 909X Design and Simulation of Metamaterial in Compact Broadband Microstrip Patch Antenna for Wireless Router Ruchi Thakur, Ratish Kumar Abstract A microstrip patch antenna using Metamaterial
More informationDesign a U-sloted Microstrip Antenna for Indoor and Outdoor Wireless LAN
ISSN:1991-8178 Australian Journal of Basic and Applied Sciences Journal home page: www.ajbasweb.com Design a U-sloted Microstrip Antenna for Indoor and Outdoor Wireless LAN 1 T.V. Padmavathy, 2 T.V. Arunprakash,
More informationMicrostrip Patch Antenna Miniaturization by using Split Ring Resonators which are in-plane for WLAN Application
Microstrip Patch Antenna Miniaturization by using Split Ring Resonators which are in-plane for WLAN Application Goutham V Student, Dept of Ece Ait, Chikkamagaluru, Karnataka, India Vani H.R Associate Professor,
More informationA NOVEL COMPACT ARCHIMEDEAN SPIRAL ANTENNA WITH GAP-LOADING
Progress In Electromagnetics Research Letters, Vol. 3, 169 177, 2008 A NOVEL COMPACT ARCHIMEDEAN SPIRAL ANTENNA WITH GAP-LOADING Q. Liu, C.-L. Ruan, L. Peng, and W.-X. Wu Institute of Applied Physics University
More informationA NOVEL DUAL-BAND PATCH ANTENNA FOR WLAN COMMUNICATION. E. Wang Information Engineering College of NCUT China
Progress In Electromagnetics Research C, Vol. 6, 93 102, 2009 A NOVEL DUAL-BAND PATCH ANTENNA FOR WLAN COMMUNICATION E. Wang Information Engineering College of NCUT China J. Zheng Beijing Electro-mechanical
More informationCopyright 2007 IEEE. Reprinted from Proceedings of 2007 IEEE Antennas and Propagation Society International Symposium.
Copyright 2007 IEEE. Reprinted from Proceedings of 2007 IEEE Antennas and Propagation Society International Symposium. This material is posted here with permission of the IEEE. Internal or personal use
More informationResearch Article Small Size and Low Cost UHF RFID Tag Antenna Mountable on Metallic Objects
Antennas and Propagation Volume 215, Article ID 87478, 6 pages http://dx.doi.org/1.1155/215/87478 Research Article Small Size and Low Cost UHF RFID Tag Antenna Mountable on Metallic Objects Sergio López-Soriano
More informationA Miniaturized Wide-Band LTCC Based Fractal Antenna
A Miniaturized Wide-Band LTCC Based Fractal Antenna Farhan A. Ghaffar, Atif Shamim and Khaled N. Salama Electrical Engineering Program King Abdullah University of Science and Technology Thuwal 23955-6500,
More informationInternational Journal for Research in Applied Science & Engineering Technology (IJRASET) Circular Microstrip Patch Antenna for RFID Application
Circular Microstrip Patch Antenna for RFID Application Swapnali D. Hingmire 1, Mandar P. Joshi 2, D. D. Ahire 3 1,2,3 E&TC Department, 1 R. H. Sapat COE, Nashik, 2,3 Matoshri COE, Nashik, Savitri Bai Phule
More informationMahmoud Mohamed Ahmed El-Negm Yousef, Dr Adel B. Abdel-Rahman and Dr Ahmed M.montaser.
Design of dual band RFID antenna reader by modified H-shaped resonator Mahmoud Mohamed Ahmed El-Negm Yousef, Dr Adel B. Abdel-Rahman and Dr Ahmed M.montaser. Abstract A printed microstrip-fed monopole
More informationDesign of Frequency and Polarization Tunable Microstrip Antenna
Design of Frequency and Polarization Tunable Microstrip Antenna M. S. Nishamol, V. P. Sarin, D. Tony, C. K. Aanandan, P. Mohanan, K. Vasudevan Abstract A novel compact dual frequency microstrip antenna
More informationMODIFIED EDGE FED SIERPINSKI CARPET MINIATURIZED MICROSTRIP PATCH ANTENNA
Nigerian Journal of Technology (NIJOTECH) Vol. 35, No. 3, July 2016, pp. 637 641 Copyright Faculty of Engineering, University of Nigeria, Nsukka, Print ISSN: 0331-8443, Electronic ISSN: 2467-8821 www.nijotech.com
More informationSIZE REDUCTION AND BANDWIDTH ENHANCEMENT OF A UWB HYBRID DIELECTRIC RESONATOR AN- TENNA FOR SHORT-RANGE WIRELESS COMMUNICA- TIONS
Progress In Electromagnetics Research Letters, Vol. 19, 19 30, 2010 SIZE REDUCTION AND BANDWIDTH ENHANCEMENT OF A UWB HYBRID DIELECTRIC RESONATOR AN- TENNA FOR SHORT-RANGE WIRELESS COMMUNICA- TIONS O.
More informationResearch Article Tunable Compact UHF RFID Metal Tag Based on CPWOpenStubFeedPIFAAntenna
Antennas and Propagation Volume 212, Article ID 167658, 8 pages doi:1.1155/212/167658 Research Article Tunable Compact UHF RFID Metal Tag Based on CPWOpenStubFeedPIFAAntenna Lingfei Mo and Chunfang Qin
More informationDesign and Development of a 2 1 Array of Slotted Microstrip Line Fed Shorted Patch Antenna for DCS Mobile Communication System
Wireless Engineering and Technology, 2013, 4, 59-63 http://dx.doi.org/10.4236/wet.2013.41009 Published Online January 2013 (http://www.scirp.org/journal/wet) 59 Design and Development of a 2 1 Array of
More informationDUAL BAND MONOPOLE ANTENNA FOR WLAN/WIMAX APPLICATIONS
Rev. Roum. Sci. Techn. Électrotechn. et Énerg. Vol. 63, 3, pp. 283 288, Bucarest, 2018 Électronique et transmission de l information DUAL BAND MONOPOLE ANTENNA FOR WLAN/WIMAX APPLICATIONS BIPLAB BAG 1,
More informationThe Effect of Aspect Ratio and Fractal Dimension of the Boundary on the Performance of Fractal Shaped CP Microstrip Antenna
Progress In Electromagnetics Research M, Vol. 64, 23 33, 2018 The Effect of Aspect Ratio and Fractal Dimension of the Boundary on the Performance of Fractal Shaped CP Microstrip Antenna Yagateela P. Rangaiah
More informationDesign of a Fractal Slot Antenna for Rectenna System and Comparison of Simulated Parameters for Different Dimensions
CPUH-Research Journal: 2015, 1(2), 43-48 ISSN (Online): 2455-6076 http://www.cpuh.in/academics/academic_journals.php Design of a Fractal Slot Antenna for Rectenna System and Comparison of Simulated Parameters
More informationReconfigurable high Gain split Ring Resonator Microstrip Patch Antenna
Reconfigurable high Gain split Ring Resonator Microstrip Patch Antenna Japit S. Sonagara*, Karan H. Shah, Jaydeep D. Suvariya and Shobhit K. Patel Marwadi Education Foundation Group of Institutions, Rajkot,
More informationDesign of Fractal Antenna for RFID Applications
Design of Fractal Antenna for RFID Applications 1 Manpreet Kaur 1, Er. Amandeep Singh 2 M.Tech, 2 Assistant Professor, Electronics and Communication, University College of Engineering/ Punjabi University,
More informationA New Compact Printed Triple Band-Notched UWB Antenna
Progress In Electromagnetics Research etters, Vol. 58, 67 7, 016 A New Compact Printed Triple Band-Notched UWB Antenna Shicheng Wang * Abstract A novel planar ultra-wideband (UWB) antenna with triple-notched
More informationMiniature Multiband Antenna for WLAN and X-Band Satellite Communication Applications
Progress In Electromagnetics Research Letters, Vol. 75, 13 18, 2018 Miniature Multiband Antenna for WLAN and X-Band Satellite Communication Applications Ruixing Zhi, Mengqi Han, Jing Bai, Wenying Wu, and
More informationDESIGN OF 0.92 GHZ ARTIFICIAL MAGNETIC CONDUCTOR FOR METAL OBJECT DETECTION IN RFID TAG APPLICATION WITH LITTLE SENSITIVITY TO INCIDENCE OF ANGLE
2 th February 214. Vol. 6 No.2 25-214 JATIT & LLS. All rights reserved. DESIGN OF.92 GHZ ARTIFICIAL MAGNETIC CONDUCTOR FOR METAL OBJECT DETECTION IN RFID TAG APPLICATION WITH LITTLE SENSITIVITY TO INCIDENCE
More informationA Dual-Resonant Microstrip-Based UHF RFID Cargo Tag
The University of Kansas Technical Report A Dual-Resonant Microstrip-Based UHF RFID Cargo Tag Supretha Aroor and Daniel D. Deavours ITTC-FY2010-TR-41420-23 March 2008 Project Sponsor: Oak Ridge National
More informationProximity fed Gap Coupled Array Antenna with DGS Backed with Periodic Metallic Strips
Proximity fed Gap Coupled Array Antenna with DGS Backed with Periodic Metallic Strips Jacob Abraham 1 and Thomaskutty Mathew Department of Electronics, School of Technology and Applied Sciences, Mahatma
More informationA Novel Multiband MIMO Antenna for TD-LTE and WLAN Applications
Progress In Electromagnetics Research Letters, Vol. 74, 131 136, 2018 A Novel Multiband MIMO Antenna for TD-LTE and WLAN Applications Jing Bai, Ruixing Zhi, Wenying Wu, Mengmeng Shangguan, Bingbing Wei,
More informationCOMPACT PLANAR MULTIBAND ANTENNA FOR GPS,DCS,2.4/5.8 GHz WLAN APPLICATIONS
Appendix -B COMPACT PLANAR MULTIBAND ANTENNA FOR GPS,DCS,2.4/5.8 GHz WLAN APPLICATIONS Contents 1. Introduction 2. Antenna design 3. Results and discussion 4. Conclusion 5. References A compact single
More informationMiniaturization of Microstrip Patch Antenna for Mobile Application
Miniaturization of Microstrip Patch Antenna for Mobile Application Amit Rakholiya 1, prof. Namrata Langhnoja 2, Akash Dungrani 3 1P.G. student, Department of Communication System Engineering, L.D.C.E.,
More information