Transistor Characterization and Modeling and the Use of Embedding Device Models for the Design of Microwave Power Amplifiers
|
|
- Shanon Bennett
- 5 years ago
- Views:
Transcription
1 Transstor Characterzaton and Modelng and the Use of Embeddng Dece Models for the Desgn of Mcrowae Power Amplfers Patrck Robln, Francsco J. Martnez-Rodrguez,, Hsu Chen Chang, Chenggang Xe and Jose I. Martnez-opez Electrcal and Computer Engneerng, The Oho State Unersty, Columbus, OH 40, USA Facultad de Ingenera, Unersdad Naconal Autonoma de Mexco, Mexco Cty 0450, Mexco Rockwell Collns, Cedar Rapds, IA 5498, USA Abstract Crcut-based large-sgnal dece models reman extensely used to desgn ntegrated and hybrd mcrowae crcuts. It has been recently demonstrated that dece models can also be proftably appled under the form of a nonlnear embeddng dece model to help wth the synthess of mult-transstor power amplfers (PA) such as Doherty PAs. In ths paper we shall dscuss ths new desgn process from dece modelng to PA desgn. Frst an example of an Artfcal Neural Network (ANN) SOS-MOSFET model drectly extracted from large-sgnal measurements wll be reewed and ts companon ANN nonlnear embeddng dece model presented. Nonlnear embeddng dece models can be mplemented for other models such as the Angelo model to desgn PAs. A general methodology for desgnng twotransstor Doherty or Chrex PAs usng an embeddng dece model wll be presented and prelmnary smulaton results on the desgn of a GaN Chrex amplfer usng an Angelo nonlnear embeddng dece model wll be reported. Index Terms Dece modelng, embeddng dece model, Chrex power amplfers. I. INTRODUCTION Crcut-based large-sgnal dece models reman the tool of choce to desgn ntegrated and hybrd mcrowae crcuts usng crcut smulaton. It has recently been demonstrated that dece models can also be proftably used under the form of a nonlnear embeddng dece model to help wth the synthess of mult-transstor power amplfers (PA) [-]. In ths paper we shall dscuss the assocated desgn process startng from the dece modelng to the PA desgn process. Frst an example of an artfcal neural networks (ANN) SOS-MOSFET model drectly extracted from large-sgnal measurements wll be reewed and ts companon ANN nonlnear embeddng dece model presented. Nonlnear embeddng dece models can be mplemented for other models such as the Angelo model to desgn PAs []. A general methodology for desgnng twotransstor PAs such as Doherty or Chrex PAs usng an embeddng dece model wll be presented. Fnally, prelmnary smulaton results on ts applcaton to the desgn of a GaN Chrex amplfer usng an Angelo nonlnear embeddng dece wll be reported. II. DEVICE MODEING The deelopment of a crcut-based mcrowae dece model s usually an ntense process. Howeer wth the adent of NVNAs, crcut-based nonlnear mcrowae models can nowadays be extracted for a targeted range of operaton from a few large-sgnal measurements [-7]. An example of SOS-MOSFET model wth memory effects extracted from a sngle 0 ms real-tme acte load pull (RTAP) was recently reported [8]. The effcent phase sweepng of the RTAP drastcally reduces the number of large-sgnal measurements needed for the model deelopment and erfcaton whle mantanng the same ntrnsc oltage coerage as n conentonal passe or acte load pull systems. The bas dependence of the charges and the current-oltage (IV) characterstcs are smultaneously extracted from these measurements usng ANNs. Memory effects assocated wth the parastc bpolar effect was also extracted that way for mproed modelng accuracy. Smlarly other memory effects (self-heatng, trappng) can be mplemented n ANN models for GaN deces [5]. III. EMBEDDING DEVICE MODE A general topology for an FET wthout memory effect for smplcty s shown n Fg.. A nonlnear transfer network lke the one shown n Fg. can be deeloped to moe the oltages and the currents from the IV currentsource reference plane (red) to b) the ntrnsc (green), c) the extrnsc (can), d) the package (blue) and e) the testbed (black) reference planes dependng on the needs or applcaton targeted /5/$ IEEE
2 Fg. : Dece model ncludng the (a) the current source (red), (b) the ntrnsc (green), (c) the extrnsc (can), (d) the package (blue) and (e) the tesbed (black) reference planes. The embeddng transfer network n Fg. has the same functon as ABCD parameters for lnear crcuts n the frequency doman but apples nstead to nonlnear crcuts operatng n the tme-doman. Combnng the transfer network wth the IV characterstcs lke s shown n Fg. yelds the embeddng dece model. Note that self-heatng or trappng models can be ncluded as part of the currentoltage plane crcut f the dece s affected by lowfrequency memory effects. practcal crcut mplementaton for the Angelo embeddng dece model. Fg. : Conceptual realzaton of an embeddng dece model from a) the ntrnsc current-oltage (IV) reference planes (nternal and external red boxes) to the b) extrnsc reference planes (blue box). Fg. : The embeddng dece model realzed by combnng the Embeddng Transfer Network and the IV characterstcs of the FET. Self-heatng s also ncluded as part of the IV. Conceptually an embeddng dece model can be realzed by usng negate resstances, capactances, nductance and charges to negate and eentually de-embed the dece back to ts IV characterstcs. Ths ant-crcut mplementaton s not, howeer, usually possble n commercal harmonc balance smulators due to stablty ssues. The reader s referred to [] for an example of a An embeddng dece model for the ANN dece model mentoned n Secton II and reported n [8], can be smlarly mplemented by replacng the nonlnear analytc IV and charge expressons of the Angelo model by neural networks used to represent them. To test the functonalty of ths ANN embeddng dece model t s suffcent to dre the ANN dece model by the ANN embeddng dece model as shown n Fg. 4. The mutual consstency between these two types of ANN model s demonstrated n Fg. 5 for the targeted ntrnsc load lnes (a) and projected extrnsc load lnes (b) of an SOS-MOSFET.
3 dece model (ncludng low-frequency memory effects f needed) has already been deeloped usng for example the model topologes dscussed n Secton II. Fg. 4: Embeddng dece model (left) connected to the dece model (rght) to test ther consstency. DS (t) (A) DS (t) (A) DS (t) (V) (a) (b) FET model embeddng dece FET model embeddng dece DS (t) (V) Fg. 5. Targeted ntrnsc load lnes (a) and extrnsc load lnes (b) as predcted by the ANN embeddng dece model (blue lne) and erfed usng the ANN dece model (red thck dashed-lne).. Model-Based Embeddng PA Desgn The desgn of sngle transstor PAs usng nonlnear embeddng has been extensely nestgated [9-0] and multple PA desgns were successfully demonstrated [- ]. These orgnal embeddng PA desgn approaches reled on combnng measured low-frequency loadlnes and the charge models separately extracted so as to account for memory effects. In ths paper we are focusng nstead on the model-based embeddng PA desgn whch uses an embeddng dece model [] and assumes that a relable Our focus n ths work s on the desgn of two-transstor Doherty and Chrex PAs. An account for the Doherty PA has been already reported [] but a new and general treatment for the redesgn of the Doherty or Chrex combner after nonlnear embeddng s gen here. The strategy s as follow. In the conentonal textbook case, the two transstors are replaced by ther IV characterstcs as shown n Fg. 6 (a). The two transstor outputs are then combned together usng a -port loss-less recprocal network and delered to the load R as shown n Fg. 6 (a) for the textbook case. Typcally these crcuts nole an nerter (Doherty) or offset lnes (Chrex, Doherty) and some transformers to realze the optmal mpedance targeted at the fundamental frequency. The harmonc termnaton s assumed to be accounted wth a separate network (not shown) before the combner. Class F operaton s selected for the Chrex PA example. The ntrnsc reflecton coeffcents for the Chrex amplfer are shown n Fg. 7 (black and purple crcles) under Chrex load modulaton. The detals of the deal Chrex combner used wll be reported elsewhere. The extrnsc load mpedances at the fundamental requred at the package planes for the upper and lower transstors as predcted by the embeddng dece model from the desred ntrnsc loads are shown usng blue and green crcles. The queston arses now on how to deelop the combner to mantan the desred ntrnsc Chrex load pull acton. Care must be taken to achee both the correct large-sgnal mpedance and sgnal njecton snce the two FET deces are nteractng. j parameters can be defned for ths two-port network (red box) at the peak and backoff ponts. It can be erfed (see Appendx) that a recprocal lossless -port can be extracted only f the - portj parameters are recprocal = and the followng loss constrant holds: Re { } e{ } { } Re Ths holds een f a complex load Z s used nstead of a real load R. Some small departures from these condtons are usually obsered due to the nonlnear nature of the embeddng process. For the -port j parameter extracton, focus s placed on the large-sgnal FET operaton at the peak and back-off ponts. Nonetheless the recprocty and
4 constrant lead to an oer-determned system of equatons. An analytc least square extracton or a geometrcal aerage can then be used to obtan j parameters erfyng exactly these constrants. Once j parameters erfyng these constrants are obtaned, the resultng -port loss-less recprocal crcut can then be syntheszed exactly from them by usng, for example, three dfferent -port crcuts as shown n Fg. 6 (c). Analytc expressons are also dered for ths process. enforce the requred recprocty and loss constrants. Howeer, note that the paths of the outphasng Chrex PA no longer exhbt exactly the same reflecton coeffcents at the peak (θ=0) and backoff (θ max ) outphasng angles. Dece Model Fg. 6: (a) Combner used for the textbook FET IV and (b) new - port combner wth the full FET model. The crcut n (c) shows a realzaton of the -port combner usng three -port crcuts. et us consder a 6 db backoff Chrex PA operatng n class F and based on the FET IV characterstcs. The trajectores under Chrex load modulaton of the nternal G and external (projected) Gp reflecton coeffcents are shown n Fg. 7 at the fundamental ω and harmoncs frequences. Both of the paths of ths Chrex PA are seen to exhbt the same reflecton coeffcents G(ω) and Gp(ω) at the peak (θ=0) and backoff (θ max ) outphasng angles. Fg. 8 Resultng extrnsc Gp(ω) (blue and green crcles) and ntrnsc G(ω) (black and purple crcles) load reflecton coeffcents obtaned wth the dece model when usng the Chrex combner analytcally extracted from the embeddng data obtaned n Fg. 7. Embeddng Dece Model Fg. 7 Requred extrnsc load reflecton coeffcents Gp(ω) (blue and green crcles) at the fundamental for the upper and lower transstors predcted by the embeddng dece model from the ntrnsc load reflecton coeffcents G(ω) (black and purple crcles) under Chrex load modulaton wth the FET IV. Applyng the extracted -port loss-less combner crcut to the Chrex PA usng the full FET model, the nternal and external Chrex load modulaton shown n Fg. 8 can stll be obsered despte the approxmate soluton obtaned to Fg. 9 Smulated effcency obtaned for a 6 db Class F Chrex PA usng: ) the IV characterstc only (top blue lne) and ) the full FET models wth the syntheszed -port network (center red lne). The deal Chrex effcency wth Class B operaton s also shown for reference (bottom black lne). The effcency (mddle red lne) obtaned wth the full FET model whle usng the syntheszed loss-less recprocal network s shown n Fg. 9 to hae degraded by 6% compared to the effcency obtaned usng the FET IV. The deal Chrex PA wth Class B operaton s also shown for reference (bottom black lne). IV. CONCUSION In ths paper we hae reewed the desgn of multtransstor PA usng an embeddng dece model. The
5 applcaton of ths method to the desgn of a two-path Doherty or Chrex amplfer was then dscussed. For the the Doherty or Chrex combner crcut to be mplemented at the fundamental frequency usng a loss-less crcut, the equalent two-port network extracted at the peak and backoff ponts must satsfes both a recprocty constrant and a loss constrant. Some small departures from these condtons are usually obsered due to the nonlnear nature of the embeddng process. An approxmate desgn enforcng these constrants can then be deeloped for the Doherty or Chrex combner so that the transstors operate close to the targeted nternal mode of operaton at the peak and backoff ponts. ACKNOWEDGEMENT Ths work was supported by the Natonal Scence Foundaton (NSF) Collaborate under Grant ECS- 90 and by Rockwell Collns under a project grant. REFERENCES [] Haedong Jang, Patrck Robln, and Zhjan Xe, Model-based nonlnear embeddng for power amplfers desgn, IEEE Trans. Mcrowae Theory and Technques, Vol 6, No. 9, pp , Sept. 04. [] Haedong Jang, Patrck Robln, Chrstophe Qundrot, qoa n and Robert Pond, Asymmetrc Doherty Power Amplfers Desgned Usng Model-Based Nonlnear Embeddng, IEEE Trans. Mcrowae Theory and Technques, Vol. 6, pp , No., Dec. 04. [] M. C. Curras-Francos, Table-based nonlnear HEMT model extracted from tme-doman large-sgnal measurements, IEEE Trans. Mcrowae Theory and Technques, ol. 5, no. 5, pp , 005. [4] J. Xu, D. Gunyan, M. Iwamoto, A. Cognata, and D. Root, Measurement-based non-quas-statc large-sgnal FET model usng artfcal neural networks, n Mcrowae Symposum Dgest, 006. IEEE MTT-S Internatonal, pp , 006. [5] J. Xu, J. Horn, M. Iwamoto, and D. E. Root, arge-sgnal FET model wth multple tme scale dynamcs from nonlnear ector network analyzer data, n Mcrowae Symposum Dgest (MTT), 00 IEEE MTT-S Internatonal, pp , 00. [6] D.-P. Schreurs, J. Verspecht, S. Vandenberghe, and E. Vandamme, Straghtforward and accurate nonlnear dece model parameterestmaton method based on ectoral largesgnal measurements, IEEE Trans. Mcrowae Theory and Technques, ol. 50, no. 0, pp. 5 9, 00. [7] M. Curras-Francos, P. Tasker, M. Fernandez-Barcela,. Campos-Roca, and E. Sanchez, Drect extracton of nonlnear FET QV functons from tme doman large sgnal measurements, IEEE Mcrowae and Guded Wae etters, ol. 0, no., pp. 5 5, 000. [8] oungseo Ko, P. Robln, A. Zarate-de anda, Apolnar Reynoso-Hernandez, D. Nobbe, C. Olson, F.J. Martnez, Artfcal Neural Network Model of SOS-MOSFETs Based on Dynamc arge-sgnal Measurements, IEEE Trans. Mcrowae Theory and Technques, ol. 6, no., pp , 04. [9] A. Raffo, F. Scappaa, and G. Vannn, A new approach to mcrowae power amplfer desgn based on the expermental characterzaton of the ntrnsc electron-dece load lne, IEEE Trans. Mcrowae Theory and Technques, ol. 57, no. 7, July 009. [0] A. Raffo, V. Vadal`a, S. D Falco, F. Scappaa, and G. Vannn, Hybrd approach to mcrowae power amplfer desgn, Workshop on Integrated Nonlnear Mcrowae and Mllmeter-Wae Crcuts (IN-MMIC), pp.-6, 00. [] A. Muso, V. Vadal`a, F. Scappaa, A. Raffo, S. D Falco, and G. Vannn, A new approach to class-e power amplfer desgn, Workshop on Integrated Nonlnear Mcrowae and Mllmeter-Wae Crcuts (INMMIC), pp.-4, 0. [] S. u, and D. M. M.-P. Schreurs, Intrnsc class-f RF GaN power amplfer wth commercal transstor based on a modfed Hybrd approach, Workshop on Integrated Nonlnear Mcrowae and Mllmeter-Wae Crcuts (IN- MMIC), pp.-, 0. [] V. Vadal`a, A. Raffo, S. D Falco, G. Bos, A. Nall, and G. Vannn, A loadpull characterzaton technque accountng for harmonc tunng, IEEE Trans. Mcrowae Theory and Technques, Vol. 6, No. 7, pp , Jul. 0. APPENDIX The -port combner used by the -path Doherty or Chrex PAs s a recprocal loss-less dece whch admts the followng -parameter representaton: + y + y + y + y where the -port -parameters y j are pure magnary. The -port network defned n Fg. 6 (a) admts thus the followng -parameters: = + = + where the loaded -port and -port -parameters are related by the smple relatonshp: The -port network s lossy and thus the -port - parameters feature a non-zero R real part: wth R + j I e + y + y yr + R y yr + R y { } and I = Im{ }. yyr + R y. () () ()
6 Now snce the terms R, y, y and yy are real, and the y pure magnary, we hae the followng denttes: Equatng (4) and (5) we obtan the fnal dentty: R = RR or equalently: e { } { } Re{ }. Re The same constrant s also requred f a complex load Z s used nstead of the real load R. y y y. From (), () and () we hae the followng ratos: y y R = = y y R y y R = =. y y R (4) (5)
Microelectronic Circuits
Mcroelectronc Crcuts Slde 1 Introducton Suggested textbook: 1. Adel S. Sedra and Kenneth C. Smth, Mcroelectronc Crcuts Theory and Applcatons, Sxth edton Internatonal Verson, Oxford Unersty Press, 2013.
More informationECEN 5014, Spring 2013 Special Topics: Active Microwave Circuits and MMICs Zoya Popovic, University of Colorado, Boulder
ECEN 514, Sprng 13 Specal Topcs: Acte Mcrowae Crcuts and MMICs Zoya Popoc, Unersty of Colorado, Boulder LECTURE 4 BROADBAND AMPLIFIERS L4.1. INTRODUCTION The challenge n desgnng a broadband mcrowae amplfer
More informationIntroduction to Amplifiers
Introducton to Amplfers Dad W. Graham West Vrgna Unersty Lane Department of Computer Scence and Electrcal Engneerng Dad W. Graham, 07 Small Wggles To Bg Wggles Amplfcaton s extremely mportant n electroncs
More informationEE 508 Lecture 6. Degrees of Freedom The Approximation Problem
EE 508 Lecture 6 Degrees of Freedom The Approxmaton Problem Revew from Last Tme Desgn Strategy Theorem: A crcut wth transfer functon T(s) can be obtaned from a crcut wth normalzed transfer functon T n
More informationIEE Electronics Letters, vol 34, no 17, August 1998, pp ESTIMATING STARTING POINT OF CONDUCTION OF CMOS GATES
IEE Electroncs Letters, vol 34, no 17, August 1998, pp. 1622-1624. ESTIMATING STARTING POINT OF CONDUCTION OF CMOS GATES A. Chatzgeorgou, S. Nkolads 1 and I. Tsoukalas Computer Scence Department, 1 Department
More informationPOLYTECHNIC UNIVERSITY Electrical Engineering Department. EE SOPHOMORE LABORATORY Experiment 1 Laboratory Energy Sources
POLYTECHNIC UNIERSITY Electrcal Engneerng Department EE SOPHOMORE LABORATORY Experment 1 Laboratory Energy Sources Modfed for Physcs 18, Brooklyn College I. Oerew of the Experment Ths experment has three
More informationCharacteristics of New Single Phase Voltage Doubler Rectifier Circuit using the Partial Switching Strategy
IEEE PEDS 217, Honolulu, USA 12 15 December 217 Characterstcs of New gle Phase Voltage Doubler Rectfer Crcut usng the Partal Swtchng Strategy Kenj Ame Akto Kumaga Takahsa Ohj Kyohe Kyota Masaak Saku Unersty
More informationantenna antenna (4.139)
.6.6 The Lmts of Usable Input Levels for LNAs The sgnal voltage level delvered to the nput of an LNA from the antenna may vary n a very wde nterval, from very weak sgnals comparable to the nose level,
More informationAnalysis, Design, and Simulation of a Novel Current Sensing Circuit
Analyss, Desgn, and Smulaton of a Noel Current Sensng Crcut Louza Sellam Electrcal and Computer Engneerng Department US Naal Academy Annapols, Maryland, USA sellam@usna.edu obert W. Newcomb Electrcal and
More informationControl of Chaos in Positive Output Luo Converter by means of Time Delay Feedback
Control of Chaos n Postve Output Luo Converter by means of Tme Delay Feedback Nagulapat nkran.ped@gmal.com Abstract Faster development n Dc to Dc converter technques are undergong very drastc changes due
More informationDynamic Optimization. Assignment 1. Sasanka Nagavalli January 29, 2013 Robotics Institute Carnegie Mellon University
Dynamc Optmzaton Assgnment 1 Sasanka Nagavall snagaval@andrew.cmu.edu 16-745 January 29, 213 Robotcs Insttute Carnege Mellon Unversty Table of Contents 1. Problem and Approach... 1 2. Optmzaton wthout
More informationTECHNICAL NOTE TERMINATION FOR POINT- TO-POINT SYSTEMS TN TERMINATON FOR POINT-TO-POINT SYSTEMS. Zo = L C. ω - angular frequency = 2πf
TECHNICAL NOTE TERMINATION FOR POINT- TO-POINT SYSTEMS INTRODUCTION Because dgtal sgnal rates n computng systems are ncreasng at an astonshng rate, sgnal ntegrty ssues have become far more mportant to
More information29. Network Functions for Circuits Containing Op Amps
9. Network Functons for Crcuts Contanng Op Amps Introducton Each of the crcuts n ths problem set contans at least one op amp. Also each crcut s represented by a gven network functon. These problems can
More informationECE315 / ECE515 Lecture 5 Date:
Lecture 5 Date: 18.08.2016 Common Source Amplfer MOSFET Amplfer Dstorton Example 1 One Realstc CS Amplfer Crcut: C c1 : Couplng Capactor serves as perfect short crcut at all sgnal frequences whle blockng
More informationModeling and Design Considerations of Coupled Inductor Converters
Modelng and Desgn onsderatons of oupled Inductor onerters Guangyong Zhu Auscom Engneerng, Inc. A subsdary of ompal Electroncs, Inc. One Dell Way, Round Roc, TX 7868 Abstract-In ths part of the sequel on
More informationHarmonic Balance of Nonlinear RF Circuits
MICROWAE AND RF DESIGN Harmonc Balance of Nonlnear RF Crcuts Presented by Mchael Steer Readng: Chapter 19, Secton 19. Index: HB Based on materal n Mcrowave and RF Desgn: A Systems Approach, nd Edton, by
More informationCHAPTER 4 INSTANTANEOUS SYMMETRICAL COMPONENT THEORY
74 CHAPTER 4 INSTANTANEOUS SYMMETRICAL COMPONENT THEORY 4. INTRODUCTION Ths chapter deals wth nstantaneous symmetrcal components theory for current and oltage compenton. The technque was ntroduced by Forteue.
More informationComparison of Reference Compensating Current Estimation Techniques for Shunt Active Filter
Comparson of Reference Compensatng Current Estmaton Technques for Shunt Acte Flter R.SHANMUGHA SUNDARAM K.J.POORNASEVAN N.DEVARAJAN Department of Electrcal & Electroncs Engneerng Goernment College of Technology
More informationFigure.1. Basic model of an impedance source converter JCHPS Special Issue 12: August Page 13
A Hgh Gan DC - DC Converter wth Soft Swtchng and Power actor Correcton for Renewable Energy Applcaton T. Selvakumaran* and. Svachdambaranathan Department of EEE, Sathyabama Unversty, Chenna, Inda. *Correspondng
More informationSmart Grid Technologies for Reactive Power Compensation in Motor Start Applications
1 Smart Grd Technologes for Reacte Power Compensaton n Motor Start Applcatons Maryclare Peterson, Member, IEEE and Brj N. Sngh, Member, IEEE Abstract Seeral major power outages hae been attrbuted to nsuffcent
More informationHigh Speed ADC Sampling Transients
Hgh Speed ADC Samplng Transents Doug Stuetzle Hgh speed analog to dgtal converters (ADCs) are, at the analog sgnal nterface, track and hold devces. As such, they nclude samplng capactors and samplng swtches.
More informationPassive Filters. References: Barbow (pp ), Hayes & Horowitz (pp 32-60), Rizzoni (Chap. 6)
Passve Flters eferences: Barbow (pp 6575), Hayes & Horowtz (pp 360), zzon (Chap. 6) Frequencyselectve or flter crcuts pass to the output only those nput sgnals that are n a desred range of frequences (called
More informationTHE ARCHITECTURE OF THE BROADBAND AMPLIFIERS WITHOUT CLASSICAL STAGES WITH A COMMON BASE AND A COMMON EMITTER
VOL. 0, NO. 8, OCTOBE 205 ISSN 89-6608 2006-205 Asan esearch Publshng Network (APN. All rghts reserved. THE ACHITECTUE OF THE BOADBAND AMPLIFIES WITHOUT CLASSICAL STAGES WITH A COMMON BASE AND A COMMON
More information4.3- Modeling the Diode Forward Characteristic
2/8/2012 3_3 Modelng the ode Forward Characterstcs 1/3 4.3- Modelng the ode Forward Characterstc Readng Assgnment: pp. 179-188 How do we analyze crcuts wth juncton dodes? 2 ways: Exact Solutons ffcult!
More informationTo: Professor Avitabile Date: February 4, 2003 From: Mechanical Student Subject: Experiment #1 Numerical Methods Using Excel
To: Professor Avtable Date: February 4, 3 From: Mechancal Student Subject:.3 Experment # Numercal Methods Usng Excel Introducton Mcrosoft Excel s a spreadsheet program that can be used for data analyss,
More informationWalsh Function Based Synthesis Method of PWM Pattern for Full-Bridge Inverter
Walsh Functon Based Synthess Method of PWM Pattern for Full-Brdge Inverter Sej Kondo and Krt Choesa Nagaoka Unversty of Technology 63-, Kamtomoka-cho, Nagaoka 9-, JAPAN Fax: +8-58-7-95, Phone: +8-58-7-957
More informationBoise State University Department of Electrical and Computer Engineering ECE 212L Circuit Analysis and Design Lab
Bose State Unersty Department of Electrcal and Computer Engneerng ECE Crcut Analyss and Desgn ab Experment #6: Transformers, Mutual Inductance, and Coupled Cols Objectes The objectes of ths laboratory
More informationGraph Method for Solving Switched Capacitors Circuits
Recent Advances n rcuts, ystems, gnal and Telecommuncatons Graph Method for olvng wtched apactors rcuts BHUMIL BRTNÍ Department of lectroncs and Informatcs ollege of Polytechncs Jhlava Tolstého 6, 586
More informationACTIVE RESISTANCE EMULATION IN THREE-PHASE RECTIFIER WITH SUBOPTIMAL CURRENT INJECTION
6 th INTNTIONL SYMPOSIUM on POW ELECTRONICS - Ee NOVI SD, REPULIC O SI, October 6 th - 8 th, CTIVE RESISTNCE EMULTION IN THREE-PHSE RECTII WITH SUOPTIML CURRENT INJECTION Mlan Darjeć, Predrag Pejoć, Yasuyuk
More informationLecture 30: Audio Amplifiers
Whtes, EE 322 Lecture 30 Page 1 of 9 Lecture 30: Audo Amplfers Once the audo sgnal leaes the Product Detector, there are two more stages t passes through before beng output to the speaker (ref. Fg. 1.13):
More informationDesign of Shunt Active Filter for Harmonic Compensation in a 3 Phase 3 Wire Distribution Network
Internatonal Journal of Research n Electrcal & Electroncs Engneerng olume 1, Issue 1, July-September, 2013, pp. 85-92, IASTER 2013 www.aster.com, Onlne: 2347-5439, Prnt: 2348-0025 Desgn of Shunt Actve
More informationDigital Transmission
Dgtal Transmsson Most modern communcaton systems are dgtal, meanng that the transmtted normaton sgnal carres bts and symbols rather than an analog sgnal. The eect o C/N rato ncrease or decrease on dgtal
More informationUncertainty in measurements of power and energy on power networks
Uncertanty n measurements of power and energy on power networks E. Manov, N. Kolev Department of Measurement and Instrumentaton, Techncal Unversty Sofa, bul. Klment Ohrdsk No8, bl., 000 Sofa, Bulgara Tel./fax:
More informationChapter 13. Filters Introduction Ideal Filter
Chapter 3 Flters 3.0 Introducton Flter s the crcut that capable o passng sgnal rom nput to output that has requency wthn a speced band and attenuatng all others outsde the band. Ths s the property o selectvty.
More informationResearch of Dispatching Method in Elevator Group Control System Based on Fuzzy Neural Network. Yufeng Dai a, Yun Du b
2nd Internatonal Conference on Computer Engneerng, Informaton Scence & Applcaton Technology (ICCIA 207) Research of Dspatchng Method n Elevator Group Control System Based on Fuzzy Neural Network Yufeng
More informationScilab/Scicos Modeling, Simulation and PC Based Implementation of Closed Loop Speed Control of VSI Fed Induction Motor Drive
16th NATIONAL POWER SYSTEMS CONFERENCE, 15th-17th DECEMBER, 2010 453 Sclab/Sccos Modelng, Smulaton and PC Based Implementaton of Closed Loop Speed Control of VSI Fed Inducton Motor Dre Vjay Babu Korebona,
More informationDIMENSIONAL SYNTHESIS FOR WIDE-BAND BAND- PASS FILTERS WITH QUARTER-WAVELENGTH RES- ONATORS
Progress In Electromagnetcs Research B, Vol. 17, 213 231, 29 DIMENSIONAL SYNTHESIS FOR WIDE-BAND BAND- PASS FILTERS WITH QUARTER-WAVELENGTH RES- ONATORS Q. Zhang and Y. Lu School of Electrcal and Electroncs
More informationChapter 4: Switch realization
Chapter 4. Swtch Realzat 4.. Swtch applcats Sngle-, two-, and four-quadrant swtches. Synchrous rectfers 4.2. A bref surey of power semcductor deces Power dodes, MOSFETs, BJTs, IGBTs, and thyrstors 4.3.
More informationNetwork Theory. EC / EE / IN. for
Network Theory for / / IN By www.thegateacademy.com Syllabus Syllabus for Networks Network Graphs: Matrces Assocated Wth Graphs: Incdence, Fundamental ut Set and Fundamental rcut Matrces. Soluton Methods:
More informationEfficient Large Integers Arithmetic by Adopting Squaring and Complement Recoding Techniques
The th Worshop on Combnatoral Mathematcs and Computaton Theory Effcent Large Integers Arthmetc by Adoptng Squarng and Complement Recodng Technques Cha-Long Wu*, Der-Chyuan Lou, and Te-Jen Chang *Department
More informationA Comparison of Two Equivalent Real Formulations for Complex-Valued Linear Systems Part 2: Results
AMERICAN JOURNAL OF UNDERGRADUATE RESEARCH VOL. 1 NO. () A Comparson of Two Equvalent Real Formulatons for Complex-Valued Lnear Systems Part : Results Abnta Munankarmy and Mchael A. Heroux Department of
More informationSensors for Motion and Position Measurement
Sensors for Moton and Poston Measurement Introducton An ntegrated manufacturng envronment conssts of 5 elements:- - Machne tools - Inspecton devces - Materal handlng devces - Packagng machnes - Area where
More informationNATIONAL RADIO ASTRONOMY OBSERVATORY Green Bank, West Virginia SPECTRAL PROCESSOR MEMO NO. 25. MEMORANDUM February 13, 1985
NATONAL RADO ASTRONOMY OBSERVATORY Green Bank, West Vrgna SPECTRAL PROCESSOR MEMO NO. 25 MEMORANDUM February 13, 1985 To: Spectral Processor Group From: R. Fsher Subj: Some Experments wth an nteger FFT
More informationCMOS Implementation of Lossy Integrator using Current Mirrors Rishu Jain 1, Manveen Singh Chadha 2 1, 2
Proceedngs of Natonal Conference on Recent Advances n Electroncs and Communcaton Engneerng CMOS Implementaton of Lossy Integrator usng Current Mrrors Rshu Jan, Manveen Sngh Chadha 2, 2 Department of Electroncs
More informationECE 2133 Electronic Circuits. Dept. of Electrical and Computer Engineering International Islamic University Malaysia
ECE 2133 Electronc Crcuts Dept. of Electrcal and Computer Engneerng Internatonal Islamc Unversty Malaysa Chapter 12 Feedback and Stablty Introducton to Feedback Introducton to Feedback 1-4 Harold Black,
More informationMooring Cost Sensitivity Study Based on Cost-Optimum Mooring Design
Proceedngs of Conference 8 Korean Socety of Ocean Engneers May 9-3, Cheju, Korea Moorng Cost Senstvty Study Based on Cost-Optmum Moorng Desgn SAM SANGSOO RYU, CASPAR HEYL AND ARUN DUGGAL Research & Development,
More informationSequential Designs Using Retiming and Multiple Supply Voltages
Smultaneous and Aerage Power Optmzaton n Synchronous Sequental Desgns Usng Retmng and Multple Supply Voltages A. K. Allam and J. Ramanujam Electrcal and Computer Engneerng Department, Lousana State Unersty,
More informationLow Switching Frequency Active Harmonic Elimination in Multilevel Converters with Unequal DC Voltages
Low Swtchng Frequency Actve Harmonc Elmnaton n Multlevel Converters wth Unequal DC Voltages Zhong Du,, Leon M. Tolbert, John N. Chasson, Hu L The Unversty of Tennessee Electrcal and Computer Engneerng
More informationBiomedical Instrumentation
Bomedcal Instrumentaton Amplers & Wnter 1393 Bonab Unersty Applcatons o Operatonal Ampler (In Bologcal s and Systems) The three major operatons done on bologcal sgnals usng OpAmp: 1) Amplcatons and Attenuatons
More informationTuned PI Controller using Zeigler-Nichols Method for Power Quality Enhancement for linear and non linear loads
Tuned PI Controller usng Zegler-Nchols Method for Power Qualty Enhancement for lnear and non lnear s Rtu Sharma Department of Electrcal Engneerng, Gurgaon Insttute of Technology & Management, Gurgaon Emal:
More informationRejection of PSK Interference in DS-SS/PSK System Using Adaptive Transversal Filter with Conditional Response Recalculation
SERBIAN JOURNAL OF ELECTRICAL ENGINEERING Vol., No., November 23, 3-9 Rejecton of PSK Interference n DS-SS/PSK System Usng Adaptve Transversal Flter wth Condtonal Response Recalculaton Zorca Nkolć, Bojan
More informationSPST (single-pole single-throw) switches
SPST (sngle-pole sngle-throw) swtches SPST swtch, wth oltage and current polartes defned wth SPDT swtch: 2 Buck certer L L (t) C R V All power semcductor deces funct as SPST swtches. wth two SPST swtches:
More informationA Novel Soft-Switching Two-Switch Flyback Converter with a Wide Operating Range and Regenerative Clamping
77 Journal of ower Electroncs, ol 9, No 5, September 009 JE 9-5- A Novel Soft-Swtchng Two-Swtch Flybac Converter wth a Wde Operatng Range and Regeneratve Clampng Marn-Go Km and Young-Seo Jung * Dvson of
More informationDesigning Intelligent Load-Frequency Controllers for Large-Scale Multi-Control-Area Interconnected Power Systems
September 214, Vol. 1, No. 1 Desgnng Intellgent Load-Frequency Controllers for Large-Scale Mult-Control- Interconnected Power Systems Nguyen Ngoc-Khoat 1,2,* 1 Faculty of Automaton Technology, Electrc
More informationDesign of an FPGA based TV-tuner test bench using MFIR structures
ANNUAL JOURNAL OF ELECTRONICS, 3, ISSN 34-78 Desgn of an FPGA based TV-tuner test bench usng MFIR structures Jean-Jacques Vandenbussche, Peter Lee and Joan Peuteman Abstract - The paper shows how Multplcatve
More informationDetailed Simulation of Voltage and Frequency Controller for Wind Generating System with Unbalanced Linear Load with Fixed Wind Speed
Internatonal Journal of Scentfc and Research Publcatons, Volume, Issue, March 0 Detaled Smulaton of Voltage and Frequency Controller for Wnd Generatng System wth Unbalanced Lnear Load wth Fxed Wnd Speed
More informationRC Filters TEP Related Topics Principle Equipment
RC Flters TEP Related Topcs Hgh-pass, low-pass, Wen-Robnson brdge, parallel-t flters, dfferentatng network, ntegratng network, step response, square wave, transfer functon. Prncple Resstor-Capactor (RC)
More informationParameter Free Iterative Decoding Metrics for Non-Coherent Orthogonal Modulation
1 Parameter Free Iteratve Decodng Metrcs for Non-Coherent Orthogonal Modulaton Albert Gullén Fàbregas and Alex Grant Abstract We study decoder metrcs suted for teratve decodng of non-coherently detected
More informationAC-DC CONVERTER FIRING ERROR DETECTION
BNL- 63319 UC-414 AGS/AD/96-3 INFORMAL AC-DC CONVERTER FIRING ERROR DETECTION O.L. Gould July 15, 1996 OF THIS DOCUMENT IS ALTERNATING GRADIENT SYNCHROTRON DEPARTMENT BROOKHAVEN NATIONAL LABORATORY ASSOCIATED
More informationOptimal Placement of PMU and RTU by Hybrid Genetic Algorithm and Simulated Annealing for Multiarea Power System State Estimation
T. Kerdchuen and W. Ongsakul / GMSARN Internatonal Journal (09) - Optmal Placement of and by Hybrd Genetc Algorthm and Smulated Annealng for Multarea Power System State Estmaton Thawatch Kerdchuen and
More informationCalculation of the received voltage due to the radiation from multiple co-frequency sources
Rec. ITU-R SM.1271-0 1 RECOMMENDATION ITU-R SM.1271-0 * EFFICIENT SPECTRUM UTILIZATION USING PROBABILISTIC METHODS Rec. ITU-R SM.1271 (1997) The ITU Radocommuncaton Assembly, consderng a) that communcatons
More informationAn Effective Approach for Distribution System Power Flow Solution
World Academy of Scence, Engneerng and Technology nternatonal Journal of Electrcal and Computer Engneerng ol:, No:, 9 An Effectve Approach for Dstrbuton System Power Flow Soluton A. Alsaad, and. Gholam
More informationA High-Sensitivity Oversampling Digital Signal Detection Technique for CMOS Image Sensors Using Non-destructive Intermediate High-Speed Readout Mode
A Hgh-Senstvty Oversamplng Dgtal Sgnal Detecton Technque for CMOS Image Sensors Usng Non-destructve Intermedate Hgh-Speed Readout Mode Shoj Kawahto*, Nobuhro Kawa** and Yoshak Tadokoro** *Research Insttute
More informationPerformance Study of OFDMA vs. OFDM/SDMA
Performance Study of OFDA vs. OFD/SDA Zhua Guo and Wenwu Zhu crosoft Research, Asa 3F, Beng Sgma Center, No. 49, Zhchun Road adan Dstrct, Beng 00080, P. R. Chna {zhguo, wwzhu}@mcrosoft.com Abstract: In
More informationMODEL ORDER REDUCTION AND CONTROLLER DESIGN OF DISCRETE SYSTEM EMPLOYING REAL CODED GENETIC ALGORITHM J. S. Yadav, N. P. Patidar, J.
ABSTRACT Research Artcle MODEL ORDER REDUCTION AND CONTROLLER DESIGN OF DISCRETE SYSTEM EMPLOYING REAL CODED GENETIC ALGORITHM J. S. Yadav, N. P. Patdar, J. Sngha Address for Correspondence Maulana Azad
More informationTransformer winding modal parameter identification based on poly-reference least-square complex frequency domain method
Internatonal Conference on Advanced Electronc Scence and Technology (AEST 2016) Transformer wndng modal parameter dentfcaton based on poly-reference least-square complex frequency doman method Yanng L
More informationLatency Insertion Method (LIM) for IR Drop Analysis in Power Grid
Abstract Latency Inserton Method (LIM) for IR Drop Analyss n Power Grd Dmtr Klokotov, and José Schutt-Ané Wth the steadly growng number of transstors on a chp, and constantly tghtenng voltage budgets,
More informationMitigation of Harmonics in Micro Grid using Photo Voltaic cell interfaced Shunt Active Power Filter
Mtgaton of Harmoncs n Mcro Grd usng hoto Voltac cell nterfaced Shunt Acte ower Flter Selakumar.S 1, Aruna.V 2, Jagan.R 3, UG scholar, Department of EEE, SMVEC 1, 2, 3. ondcherry, Inda. Abstract: - Ths
More informationWhite Paper. OptiRamp Model-Based Multivariable Predictive Control. Advanced Methodology for Intelligent Control Actions
Whte Paper OptRamp Model-Based Multvarable Predctve Control Advanced Methodology for Intellgent Control Actons Vadm Shapro Dmtry Khots, Ph.D. Statstcs & Control, Inc., (S&C) propretary nformaton. All rghts
More informationSteady-State Analysis of Switching Converters via Frequency-Domain Circuit Equivalents
Steady-State Analyss of Swtchng onerters a Frequency-Doman rcut Equalents ccardo Trnchero, Student Member, IEEE, Paolo Manfred, Member, IEEE, Igor S. Steano, Senor Member, IEEE, Flao G. anaero, Fellow,
More informationControl of Drivetrain Boost DC DC Converter
Control of Drvetran Boost DC DC Converter Small sgnal model Converter transfer functons Current control loop bat current sensng c 2 v ge2 _ S 2 Q 2 D 2 v s S 1 C c voltage sensng I v v bat _ c 1 v ge1
More informationApplication of Intelligent Voltage Control System to Korean Power Systems
Applcaton of Intellgent Voltage Control System to Korean Power Systems WonKun Yu a,1 and HeungJae Lee b, *,2 a Department of Power System, Seol Unversty, South Korea. b Department of Power System, Kwangwoon
More informationDiscrete Time Sliding Mode Control of Magnetic Levitation System with Enhanced Exponential Reaching Law
Dscrete Tme Sldng Mode Control of Magnetc Levtaton System wth Enhanced Eponental Reachng Law Dnçer Maden, İrfan Yazıcı Duzce Unversty, Department of Electrcal & Electroncs Engneerng, 86 Konuralp, Düzce,
More informationAdaptive System Control with PID Neural Networks
Adaptve System Control wth PID Neural Networs F. Shahra a, M.A. Fanae b, A.R. Aromandzadeh a a Department of Chemcal Engneerng, Unversty of Sstan and Baluchestan, Zahedan, Iran. b Department of Chemcal
More informationTHE GENERATION OF 400 MW RF PULSES AT X-BAND USING RESONANT DELAY LINES *
SLAC PUB 874 3/1999 THE GENERATION OF 4 MW RF PULSES AT X-BAND USING RESONANT DELAY LINES * Sam G. Tantaw, Arnold E. Vleks, and Rod J. Loewen Stanford Lnear Accelerator Center, Stanford Unversty P.O. Box
More informationSwitched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers
34 L. DOLÍVKA, J. HOSPODKA, SWITCHED-CAPACITOR FILTER OPTIMIZATION Swtched-Capactor Flter Optmzaton wth Respect to Swtch On-State Resstance and Features of Real Operatonal Amplfers Lukáš DOLÍVKA, Jří HOSPODKA
More informationA Current Differential Line Protection Using a Synchronous Reference Frame Approach
A Current Dfferental Lne rotecton Usng a Synchronous Reference Frame Approach L. Sousa Martns *, Carlos Fortunato *, and V.Fernão res * * Escola Sup. Tecnologa Setúbal / Inst. oltécnco Setúbal, Setúbal,
More informationDevelopment of a High Bandwidth, High Power Linear Amplifier for a Precision Fast Tool Servo System
Development of a Hgh Bandwdth, Hgh Power near Amplfer for a Precson Fast Tool Servo System S. Rakuff 1, J. Cuttno 1, D. Schnstock 2 1 Dept. of Mechancal Engneerng, The Unversty of North Carolna at Charlotte,
More informationIntegrated Dual Output Buck Boost Converter for Industrial Application.
Integrated Dual Output Buck Boost Conerter for Industral Applcaton. Dya enugopalan Electrcal and Electroncs Department Jyoth Engneerng College. Cheruthuruthy. Thrssur, Inda eshma aj C Electrcal and Electroncs
More informationElectronic Circuits Modeling Using Artificial Neural Networks
JOUNAL OF AUTOMATIC CONTOL, UNIVEITY OF BELGAE, VOL. 3():3-37, 3 Electronc Crcuts Modelng Usng Artfcal Neural Networks Mona Andrejeć and Vančo Ltosk Abstract - In ths paper artfcal neural networks () are
More informationEnhanced Artificial Neural Networks Using Complex Numbers
Enhanced Artfcal Neural Networks Usng Complex Numers Howard E. Mchel and A. A. S. Awwal Computer Scence Department Unversty of Dayton Dayton, OH 45469-60 mchel@cps.udayton.edu Computer Scence & Engneerng
More informationModeling and Control of a Cascaded Boost Converter for a Battery Electric Vehicle
Modelng and Control of a Cascaded Boost Converter for a Battery Electrc Vehcle A. Ndtoungou, Ab. Hamad, A. Mssandaand K. Al-Haddad, Fellow member, IEEE EPEC 202 OCTOBER 0-2 Introducton contents Comparson
More informationEE133 - Lab 6 RF Amplification: The Power Amplifier and LNA (revisited)
Lab 6 - The Power Amplfer and LNA - EE133 - Prof. Dutton - Wnter 2004 1 EE133 - Lab 6 RF Amplfcaton: The Power Amplfer and LNA (revsted) 1 Introducton There wll be no formal Prelab 6 handout. Ths does
More informationImplementation of Hopfield Neural Network Using Double Gate MOSFET. A thesis presented to. the faculty of
Implementaton of Hopfeld Neural Network Usng Double Gate MOSFET A thess presented to the faculty of the Russ College of Engneerng and Technology of Oho Unversty In partal fulfllment of the requrements
More informationImprovement of the Shunt Active Power Filter Dynamic Performance
Improvement of the Shunt Actve Power Flter Dynamc Performance Krzysztof Potr Sozansk Unversty of Zelona Góra, Faculty of Electrcal Engneerng omputer Scence and Telecommuncatons Zelona Góra, Poland Abstract
More informationModelling and Controller of Liquid Level system using PID controller Deign Gloria Jose 1, Shalu George K. 2
Modellng and Controller of Lqud Level system usng PID controller Degn Glora Jose 1, Salu George K. 2 1PG student, Dept. of EEE, MBCET, Trvandrum, Kerala 2 Assstant Professor, Dept. of EEE, MBCET, Trvandrum,
More informationChaotic Filter Bank for Computer Cryptography
Chaotc Flter Bank for Computer Cryptography Bngo Wng-uen Lng Telephone: 44 () 784894 Fax: 44 () 784893 Emal: HTwng-kuen.lng@kcl.ac.ukTH Department of Electronc Engneerng, Dvson of Engneerng, ng s College
More informationEnergy Comparison of MPPT Techniques Using Cuk Converter
Internatonal Journal of Innoate Research n Adanced Engneerng (IJIRAE) ISSN: 23492163 Volume 1 Issue 6 (July 214) Energy Comparson of MPPT Technques Usng Cuk Conerter R.B.Wankhede 1 PROF.U.B.Vadya 2 1 Student
More informationAdaptive Modulation for Multiple Antenna Channels
Adaptve Modulaton for Multple Antenna Channels June Chul Roh and Bhaskar D. Rao Department of Electrcal and Computer Engneerng Unversty of Calforna, San Dego La Jolla, CA 993-7 E-mal: jroh@ece.ucsd.edu,
More informationHIGH PERFORMANCE ADDER USING VARIABLE THRESHOLD MOSFET IN 45NM TECHNOLOGY
Internatonal Journal of Electrcal, Electroncs and Computer Systems, (IJEECS) HIGH PERFORMANCE ADDER USING VARIABLE THRESHOLD MOSFET IN 45NM TECHNOLOGY 1 Supryo Srman, 2 Dptendu Ku. Kundu, 3 Saradndu Panda,
More informationChapter 2 Two-Degree-of-Freedom PID Controllers Structures
Chapter 2 Two-Degree-of-Freedom PID Controllers Structures As n most of the exstng ndustral process control applcatons, the desred value of the controlled varable, or set-pont, normally remans constant
More informationA study of turbo codes for multilevel modulations in Gaussian and mobile channels
A study of turbo codes for multlevel modulatons n Gaussan and moble channels Lamne Sylla and Paul Forter (sylla, forter)@gel.ulaval.ca Department of Electrcal and Computer Engneerng Laval Unversty, Ste-Foy,
More informationVoltage Quality Enhancement and Fault Current Limiting with Z-Source based Series Active Filter
Research Journal of Appled Scences, Engneerng and echnology 3(): 246-252, 20 ISSN: 2040-7467 Maxwell Scentfc Organzaton, 20 Submtted: July 26, 20 Accepted: September 09, 20 Publshed: November 25, 20 oltage
More informationA NEW ACTIVE POWER LINE CONDITIONER FOR COMPENSATION IN UNBALANCED/DISTORTED ELECTRICAL POWER SYSTEMS
A NEW ACIVE POWER LINE CONDIIONER FOR COMPENSAION IN UNBALANCED/DISORED ELECRICAL POWER SYSEMS Jesús R. Vázquez, Patrco Salmerón, F. Jaer Alcántara, Jame Preto Electrcal Engneerng Department, Escuela Poltécnca
More informationLecture 10: Bipolar Junction Transistor Construction. NPN Physical Operation.
Whtes, EE 320 Lecture 10 Page 1 of 9 Lecture 10: Bpolar Juncton Transstor Constructon. NPN Physcal Operaton. For the remander of ths semester we wll be studyng transstors and transstor crcuts. The transstor
More informationClosed Loop Topology of Converter for Variable Speed PMSM Drive
Closed Loop Topology of Converter for Varable Speed PMSM Drve Devang B Parmar Assstant Professor Department of Electrcal Engneerng V.V.P Engneerng College,Rajkot, Gujarat, Inda Abstract- The dscontnuous
More informationOptimization of Microstrip Ring UWB filter using ANN- PSO
Internatonal Journal of Scentfc and Research Publcatons, Volume 3, Issue 8, August 2013 1 Optmzaton of Mcrostrp Rng UWB flter usng ANN- PSO Mandpa Nath AIACTR, elh mandpa.deoghar@gmal.com Abstract- Ultra-Wde
More informationPerformance Analysis of Multi User MIMO System with Block-Diagonalization Precoding Scheme
Performance Analyss of Mult User MIMO System wth Block-Dagonalzaton Precodng Scheme Yoon Hyun m and Jn Young m, wanwoon Unversty, Department of Electroncs Convergence Engneerng, Wolgye-Dong, Nowon-Gu,
More informationShunt Active Filters (SAF)
EN-TH05-/004 Martt Tuomanen (9) Shunt Actve Flters (SAF) Operaton prncple of a Shunt Actve Flter. Non-lnear loads lke Varable Speed Drves, Unnterrupted Power Supples and all knd of rectfers draw a non-snusodal
More informationFAST ELECTRON IRRADIATION EFFECTS ON MOS TRANSISTOR MICROSCOPIC PARAMETERS EXPERIMENTAL DATA AND THEORETICAL MODELS
Journal of Optoelectroncs and Advanced Materals Vol. 7, No., June 5, p. 69-64 FAST ELECTRON IRRAIATION EFFECTS ON MOS TRANSISTOR MICROSCOPIC PARAMETERS EXPERIMENTAL ATA AN THEORETICAL MOELS G. Stoenescu,
More information