寬禁帶固態(tài)功率放大器的研究.pdf

1、電子科技大學碩士學位論文寬禁帶固態(tài)功率放大器的研究姓名：崔鶴申請學位級別：碩士專業(yè)：電子科學與技術指導教師：魏彥玉20100501一些墨!墜g：—————一ABSTRACTIllrec鉍tye粥，withthedevelopmentofcommuuicationsand皿croelemmctechn0Io西es，mod鋤militaryradarsystemisdevelopingtowardsm皿柵zan呱lli咖pow％highef

2、ficiencywidebandwidthandsuitableforworkingmharsh鋤怖衄伽舊燦thecoreofthesystem，thecharacteristicofRFpowerampll伍盯haspla：ycdakeyroleiIl也ep礬)吼鋤ceandtechnologylevelofthewholesyst鋤Amd也epowefampli斷isalsothemainenergyconsumingmodules

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4、heatconduCtionTate，highpowerdensitycapabilityhighelectronmobilityandthebett髓abibtyof刪radiationTheyareverysuitableforhighfrequencylli咖e伍a髓cyandhighpowerelectronicdevicesSotheinvestigationONwidebandPowerampllnersbecomesare

5、searchhotspotIIlthis讓螂is，aclassEpoweramplifierandaclassFpoweramplifiel“haVebeeIldesignedusingWBGdevicesThepeakcurrentandpeakvoltageofClassEandclassFpower鋤pli斷donotOCCBI=atthe$anletime，SOthedeviceissimilartoafswitch”wi也me

6、dl撒ct耐sticsofthelowestpowerconsumptionandtheoreticaleffici∞cyotlO晰Theb弱ic砷【lcipleanddesignmethodofclassEandclassFpowerampli士iersweredesc加edindetailinthisthesisThehighefficiencyofthepoweramplifi粥ha8beeIla出eVedwiththematch

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8、uirementsThetestr懿mtsareshowninthefollowing。TheclassEpoweramplifierworksin也e18GHz～20GHzfrequencybandWhentheinputpowerequalsto30dBm，thegalnismore也an10dBandpoweraddedefficiency(PAE)reachesmorethan50％，cv∞60％in195GHzTheclass