Design and analysis of a miniature W-band MMIC subharmonically pumped resistive mixer
Resource
Microwave Symposium Digest, 2004 IEEE MTT-S International
Journal
IEEE MTT-S International Microwave Symposium , 2004
Pages
-
Date Issued
2004-06
Date
2004-06
Author(s)
DOI
0149-645X
Abstract
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.
SDGs
Type
journal article
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