低成本射頻功率放大器優(yōu)化設(shè)計與實(shí)現(xiàn).pdf

1、華中科技大學(xué)碩士學(xué)位論文低成本射頻功率放大器優(yōu)化設(shè)計與實(shí)現(xiàn)姓名：王稱心申請學(xué)位級別：碩士專業(yè)：電磁場與微波技術(shù)指導(dǎo)教師：郭偉20110122華中科技大學(xué)碩士學(xué)位論文華中科技大學(xué)碩士學(xué)位論文IIAbstractWiththerapiddevelopmentofthewirelesscommunicationtechnologythewirelessproductsaremecloselyboundupwithpeople’slife.As

2、thepoweramplfieristhebasalcomponentofwirelesscommunicationThedesignmethodsofpoweramlplifierarerenovatingconsistently.Widebwidthgoodlinearityhighefficiencyarethepurposesofthepoweramplifierdesign.Asthecomplexdigitalmodulat

3、ionswhichcausethevariedenvelopesareusingpopularlythelinearityisthemostemergentchallenge.Practiceshaveproventhatthefeedfwardlinearitytechnologyisthemostpopuparpotential.Therefethisthesisstatesalowcostlinearpoweramplifierd

4、esignusingfeedfwardtechnology.ThepoweramplifierwksatthedownlinkofCDMAwks.Firstlytheauthintroducestheimptanceofthegoodlinearityofpoweramplifierthecurrentprevailingpoweramplifierdesigntechnologies.Throughcomparisontheauthc

5、oncludestheadvantagesofthefeedfwardlinearitytechnology.Secondlythearticledescribeskeyactersofthepoweramplifierclassificationsofpoweramplifierestimationofpoweramplifier’sstabilization.Thirdlythethesisstatesthetheyoffeedfw

6、ardlinearitytechnologythesystemdesignschemedetailedcircuitunitsincludingthechoicesofchipsdesignofinputunitdesignofpowersupplyunitdesignofdetectingcircuitdesignofautomaticlevelcontrolpoweramplifierdesignssoon.Finallytheau

7、thdescribestheassemblingprinciplesdebuggingmethodsthetestingresults.Themaximumoutputpowerofthepoweramplifieris45dBmIMD3islessthan55dBctheACPRarebetterthan47dBc61dBc.Thesystemisstillrequiringoptimizingwhichistheauth’sfoll