An Ultra Broadband 2-18GHz 6-Bit PHEMT MMIC Digital Attenuator with Low Insertion Phase Shift

摘要：

An ultra-wideband (2-18GHz) 6-bit MMIC digital attenuator has been designed. The attenuator has been fabricated with 0.5μm GaAs PHEMT process. Low insertion phase shift has been achieved over the main attenuation states. On-wafer measurement results of the developed MMIC chips in the 2-18GHz band show that the 6-bit MMIC digital attenuator has 31.5dB dynamic range stepped by 0.5dB; attenuation accuracy:+2.31dB/-0.51dB; insertion phase shift:+6.28°/-1.53°; referenced insertion loss: <-5.71dB; input/output VSWR: <2.32; chip size: 2.89mm×1.22mm×0.1mm.

作者: Yong-Sheng Dai Jie Zhang Bing-Qing Dai Zhi-Dong Song Gui-Xiang Qian Shao-Bo Chen Wen-Kan Zhou

作者单位: Nanjing University of Science and Technology 210094

会议类型: 国际会议

会议名称: 2010国际超宽带会议(ICUWB 2010)

会议地点: 南京

会议语种:英文

页码: 1-3

在线出版日期: 2010-09-20（万方平台首次上网日期，不代表论文的发表时间）