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1、FEEDFORWARDAMPLIFIERSFORWIDEBANDCOMMUNICATIONSYSTEMSFeedforwardAmplifiersforWidebandCommunicationSystemsbyJONLEGARDACEITandTECNUN(UniversityofNavarra),SanSebastian,SpainAC.I.P.CataloguerecordforthisbookisavailablefromtheLibraryofCongress.ISBN-100-387-35137-X
2、(HB)ISBN-13978-0-387-35137-7(HB)ISBN-100-387-35138-8(e-book)ISBN-13978-0-387-35138-4(e-book)PublishedbySpringer,P.O.Box17,3300AADordrecht,TheNetherlands.www.springer.comPrintedonacid-freepaperAllRightsReserved©2006SpringerNopartofthisworkmaybereproduced,stor
3、edinaretrievalsystem,ortransmittedinanyformorbyanymeans,electronic,mechanical,photocopying,microfilming,recordingorotherwise,withoutwrittenpermissionfromthePublisher,withtheexceptionofanymaterialsuppliedspecificallyforthepurposeofbeingenteredandexecutedonaco
4、mputersystem,forexclusiveusebythepurchaserofthework.DedicationThisbookisdedicatedtomymom,dad,brothersandmygirlfriendOihane.Thankyouallforeverything.ContentsPrefacexiiiAcknowledgmentsxvii1.Introduction11.Radio-Electrictransmitters-Historicaloverview11.1Arcand
5、sparktransmitters11.2Multi-polaralternators31.3Thermoionicvacuumtubes31.4Discretetransistors51.5Integratedtransistors62.Digitalcommunicationsystems62.1Analogsignal62.2Discretesignal72.3Digitalsignal72.4Digitaltransmission72.5Electromagneticspectrum92.6Modula
6、tiontechniques102.7Signaldegradation122.7.1Attenuation122.7.2Noise132.7.3Distortion132.8Basicarchitecturesofwirelesstransmitters142.8.1AnalogI/Qmodulatorvs.digitalIF152.8.2Otherimplementations15viiviiiContents3.Digitalmodulation163.1Applications173.2PhaseShi
7、ftKeying183.3FrequencyShiftKeying193.4MinimumShiftKeying203.5QuadratureAmplitudeModulation203.5.1I/Qoffsetmodulation223.5.2Differentialmodulation223.6Broadbandwirelessaccesstechniques232.Nonlineardistortion251.Harmonicdistortion27th1.1Nharmonicdistortioncoef
8、ficient291.2Globalharmonicdistortion302.Intermodulationanalysis302.12toneintermodulation302.23toneintermodulation333.Crossmodulation(Xmod)343.1Crossmodulation(m<<1)363.2Crossmodulation(m>>1)374.
