半导体学报2009，Vol.30Issue(5)：99-102,4.DOI:10.1088/1674-4926/30/5/055009
Design of Ka-band antipodal finline mixer and detector
Design of Ka-band antipodal finline mixer and detector
摘要
Abstract
This paper mainly discusses the analysis and design of a finline single-ended mixer and detector. In the circuit, for the purpose of eliminating high-order resonant modes and improving transition loss, metallic via holes are implemented along the mounting edge of the substrate embedded in the split-block of the WG-finline-microstrip transition. Meanwhile, a Ka band slow-wave and bandstop filter, which represents a reactive termination, is designed for the utilization of idle frequencies and operation frequencies energy. Full-wave analysis is carried out to optimize the input matching network of the mixer and the detector circuit using lumped elements to model the nonlinear diode. The exported S-matrix of the optimized circuit is used for conversion loss and voltage sensitivity analysis.The lowest measured conversion loss is 3.52 dB at 32.2 GHz; the conversion loss is flat and less than 5.68 dB in the frequency band of 29-34 GHz. The highest measured zero-bias voltage sensitivity is 1450 mV/mW at 38.6 GHz,and the sensitivity is better than 1000 mV/mW in the frequency band of 38-40 GHz.关键词
conversion loss/voltage sensitivity/antipodal finline/harmonic balance analysisKey words
conversion loss/voltage sensitivity/antipodal finline/harmonic balance analysis分类
信息技术与安全科学引用本文复制引用
Yao Changfei,Xu Jinping,Chen Mo..Design of Ka-band antipodal finline mixer and detector[J].半导体学报,2009,30(5):99-102,4.基金项目
Project supported by the National Natural Science Foundation of China (No.60621002). （No.60621002）
