Time-Domain Analog Front-End for UWB WLAN Transform-Domain Receiver
This paper addresses the problem of the time-domaindirect-sequence front-end for transform-domain ultra-wideband(UWB) wireless local area network (WLAN) receiver.Theproposed architecture comprises a single-ended voltagevoltagedynamic feedback low-noise amplifier (LNA),quadrature mixer,and baseband filter.The dynamic feedbackwith inductive output load reduces the LNA to a simplesecond-order filter,with zero at the origin,while improving theconversion gain (CG),noise figure (NF).Thus,the CG isfurther maximized when limiting the two poles within the 5-6GHzfrequency band.The mixer,based on a mergedquadrature topology,employs single-peak notch network,withbenefits to the CG,NF,and IIP3.The front-end,drawing I 0,9mA form i.Sv,achieves at 5.6GHz34.8dB conversion gain,12.1dB noise figure,and 1-dB gaindesensitization with -8dBm intefferer power at 7GHz.Othersimulation results are -2.35dBm minimum IIIP3,and -35dBcrejection at the UWB groups ＃1 and ＃3.
Transform-domain receiver front-end low-noiseamplifier low-power mixer RFIC ultra-wideband(UWB) wireless LAN.
Mohamed Zebdi Daniel Massicotte
Department of electrical and computer engineering,Université du Quèbec à Trois-Riviéres Trois-Riviéres,(Québec) CANADA G9A 5H7
国际会议
2008 China-Japan Joint Microwave Conference(2008年中日微波会议)
上海
英文
627-632
2008-09-10（万方平台首次上网日期，不代表论文的发表时间）