微型w波段MMIC次谐波泵浦电阻混频器的设计与分析

2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) Pub Date : 2004-06-06 DOI:10.1109/MWSYM.2004.1335854

Ming-Fong Lei, Pei-Si Wu, Tian-Wei Huang, Huei Wang

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引用次数: 30

摘要

采用标准的0.15/spl mu/m PHEMT工艺，设计并制作了w波段单片亚谐波泵浦(SHP)阻式混频器。提出了一种具有修正漏极电流特性的非线性模型，并将其应用于电路仿真。通过使用变压器作为LO平衡器，实现了1.5 /spl倍/ 1.0 mm/sup /的小芯片尺寸。该电路在75 ~ 88 GHz范围内的转换损耗为14 ~ 18 dB，与仿真结果吻合较好。电路不平衡分析表明，平衡器的相位不平衡是影响本LO隔离的主要因素，并且转换损耗对所有电路不平衡都具有很强的鲁棒性。

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Design and analysis of a miniature W-band MMIC subharmonically pumped resistive mixer

A W-band monolithic sub-harmonically pumped (SHP) resistive mixer was designed and fabricated using a standard 0.15/spl mu/m PHEMT process. A nonlinear model featuring modified drain-current characteristics was developed and used in circuit simulation. A small chip size of 1.5 /spl times/ 1.0 mm/sup 2/ was achieved by using a transformer as a LO balun. Measured results of this circuit showed 14-18 dB conversion losses from 75 to 88 GHz, and agree well with simulation. Analysis on circuit imbalance shows that the phase imbalance of the balun is the dominant factor on LO isolation, and the conversion loss is quite robust to all circuit imbalances.

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来源期刊

2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535)

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