U-Band Wideband Receiver Front-End

摘要：

A 40-60GHz wideband receiver front-end,consisting of a two-stage low noise amplifier (LNA) and a downconverter,is presented.The downconverter comprises a subharmonic mixer with a pair of anti-parallel diodes in asymmetric bilateral finline,and a local oscillator (LO) doubler-amplifier chain to provide the necessary LO power to the subharmonic mixer.Thus the U-band front-end operates with a LO frequency range of 10-15GHz.The circuits are fabricated on 254m thick Rogers Duroid 5880 substrate in hybrid integrated circuit technology.Measurement results show the gain of LNA is around 24dB,the conversion loss of the downconverter is in the range of 8-15dB,and the front-end has a conversion gain greater than 6dB over the range of 40-60GHz.

关键词： wideband receiver front-end low noise amplifier (LNA) subharmonic mixer finline U-band millimeter wave

作者: Yuliang Dong Rui Bai Jianhua Wu Guoyu He

作者单位: School of Physical Electronics,University of Electronic Science and Technology of China,Chengdu 6100 School of Electronic and Information Engineering,Beihang University,Beijing 100083 China

会议类型: 国际会议

会议名称: 第八届电磁理论、天线及传播国际研讨会

会议地点: 昆明

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）