Radio Frequency Circuit Design W. ALAN DAVIS UniversityofTexasatArlington KRISHNA AGARWAL RaytheonSystemsCompany AWILEY-INTERSCIENCEPUBLICATION JOHN WILEY & SONS, INC. NEWYORK/CHICHESTER/WEINHEIM/BRISBANE/SINGAPORE/TORONTO Radio Frequency Circuit Design WILEY SERIES IN MICROWAVE AND OPTICAL ENGINEERING KAICHANG, Editor TexasA&MUniversity A complete list of the titles in this series appears at the end of this volume. Radio Frequency Circuit Design W. ALAN DAVIS UniversityofTexasatArlington KRISHNA AGARWAL RaytheonSystemsCompany AWILEY-INTERSCIENCEPUBLICATION JOHN WILEY & SONS, INC. NEWYORK/CHICHESTER/WEINHEIM/BRISBANE/SINGAPORE/TORONTO Designationsusedbycompaniestodistinguishtheirproductsareoftenclaimedastrademarks.In allinstanceswhereJohnWiley&Sons,Inc.,isawareofaclaim,theproductnamesappearin initialcapitalorALLCAPITALLETTERS.Readers,however,shouldcontacttheappropriate companiesformorecompleteinformationregardingtrademarksandregistration. Copyright©2001byJohnWiley&Sons,Inc.Allrightsreserved. Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmittedinany formorbyanymeans,electronicormechanical,includinguploading,downloading,printing, decompiling,recordingorotherwise,exceptaspermittedunderSections107or108ofthe1976 UnitedStatesCopyrightAct,withoutthepriorwrittenpermissionofthePublisher.Requeststothe PublisherforpermissionshouldbeaddressedtothePermissionsDepartment,JohnWiley&Sons, Inc.,605ThirdAvenue,NewYork,NY10158-0012,(212)850-6011,fax(212)850-6008, E-Mail:[email protected]. Thispublicationisdesignedtoprovideaccurateandauthoritativeinformationinregardtothe subjectmattercovered.Itissoldwiththeunderstandingthatthepublisherisnotengagedin renderingprofessionalservices.Ifprofessionaladviceorotherexpertassistanceisrequired,the servicesofacompetentprofessionalpersonshouldbesought. ThistitleisalsoavailableinprintasISBN0-471-35052-4. FormoreinformationaboutWileyproducts,visitourwebsiteatwww.Wiley.com. LibraryofCongressCataloging-in-PublicationData: Davis,W.Alan. Radiofrequencycircuitdesign/W.AlanDavis,KrishnaAgarwal. p.cm.—(Wileyseriesinmicrowaveandopticalengineering) Includesindex. ISBN0-471-35052-4 1.Radiocircuits—Designandconstruction.I.Agarwal,KrishnaK.(KrishnaKumar) II.Title.III.Series. TK6560.D382001 621.381’32—dc21 00-043690 PrintedintheUnitedStatesofAmerica. 10987654321 Dedicatedtoourwives, MargaretDavis,ElisabethAgarwal andourchildren: Brent,Nathan,JanelleDavis Sareeta,Sandeep,SuneetAgarwal Contents Preface xiii 1 Communication Channel 1 1.1 Basic Transmitter–Receiver Configuration 1 1.2 Information and Capacity 3 1.3 Dependent States 6 Problems 8 References 8 2 Resistors, Capacitors, and Inductors 9 2.1 Introduction 9 2.2 Resistors 9 2.3 Capacitors 14 2.4 Inductors 20 Problems 31 References 31 3 Impedance Matching 33 3.1 Introduction 33 3.2 The Q Factor 33 3.3 Resonance and Bandwidth 34 3.4 Unloaded Q 36 3.5 L Circuit Impedance Matching 36 3.6 (cid:1) Transformation Circuit 39 3.7 T Transformation Circuit 41 3.8 Tapped Capacitor Transformer 42 3.9 Parallel Double-Tuned Transformer 45 Problems 49 References 50 vii
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