A millimeter-wave monolithic doubly balanced diode mixer  

作　　者：李芹 王志功 徐雷钧 

机构地区：[1]Institute of RF-& OE-ICs,Southeast University

出　　处：《Journal of Semiconductors》2010年第3期90-94,共5页半导体学报（英文版）

摘　　要：A broadband miniature doubly balanced diode mixer chip fabricated by Win＇s 0.15/zm pHEMT technology is presented. In order to save chip area, a four-fold modified Marchand balun is used. A coupled line U section improves the port to port isolation and provides the IF-output port. The mixer achieves a low conversion loss of 5.5 to 10.7 dB and high isolation of more than 26 dB over a 26-40 GHz RF/LO bandwidth and a DC-14 GHz IF bandwidth. The mixer＇s chip size is around 0.96 mm2.A broadband miniature doubly balanced diode mixer chip fabricated by Win＇s 0.15/zm pHEMT technology is presented. In order to save chip area, a four-fold modified Marchand balun is used. A coupled line U section improves the port to port isolation and provides the IF-output port. The mixer achieves a low conversion loss of 5.5 to 10.7 dB and high isolation of more than 26 dB over a 26-40 GHz RF/LO bandwidth and a DC-14 GHz IF bandwidth. The mixer＇s chip size is around 0.96 mm2.

关 键 词：doubly balanced Marchand balun conversion loss 

分 类 号：TN773[电子电信—电路与系统]