半导体学报2009，Vol.30Issue(4)：69-72,4.DOI:10.1088/1674.4926/30,4/045001 PACC:7340J EEACC:2570
Design of a 24-40 GHz balanced low noise amplifier using Lange couplers
Design of a 24-40 GHz balanced low noise amplifier using Lange couplers
Zhang Zongnan 1Huang Qinghua 1Hao Mingli 1Yang Hao 1Zhang Haiying1
作者信息
- 1. Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,China
- 折叠
摘要
Abstract
A wide band(24-40 GHz)fully integrated balanced low noise amplifier(LNA)using Lange couplers was designed and fabricated with a 0.15/zm pseudomorphic HEMT(pHEMT)technology.A new method to design a low-loss and high-coupling Lange coupler for wide band application in microwave frequency was also presented.This Lange coupler has a minimum loss of 0.09 dB and a maximum loss of 0.2 dB over the bandwidth from 20 to 45 GHz.The measured results show that the realized four-stage balanced LNA using this Lange coupler exhibites a noise figure(NF)of less than 2.7 dB and the maximum gain of 30 dB;moreover,a noticeably improved reflection performance is achieved.The input VSWR and the output VSWR are respectively less than 1.45 and 1.35 dB across the 24-40 GHz frequency range.关键词
Lange coupler/balanced/LNA/low loss/pHEMTKey words
Lange coupler/balanced/LNA/low loss/pHEMT分类
信息技术与安全科学引用本文复制引用
Zhang Zongnan,Huang Qinghua,Hao Mingli,Yang Hao,Zhang Haiying..Design of a 24-40 GHz balanced low noise amplifier using Lange couplers[J].半导体学报,2009,30(4):69-72,4.
