Characteristics of a 60 GHz MMIC mixer with an open stub microstrip line

• DOI: 10.1002/mop.25191
• Publication Date: 2010-03-20T23:59:33Z
• Authors: Sang‐Heung Lee; Jong‐Won Lim; Hokyun Ahn; Woojin Chang; Hong Gu Ji; Haecheon Kim; Eun Soo Nam
• Keywords: Cascode; Stub (electronics)

Abstract In this article, 60 GHz MMIC down‐conversion mixers for a communication system are designed and fabricated on‐chip using 0.12 μm GaAs PHEMT process technology with an f T of 78 max 190 GHz.The characteristics monolithic cascode mixer open stub microstrip line compared those without line, which integrated including matching bias circuits. The measured at RF show conversion gain −16 dB, LO to isolation 21.5 IF 40.5 dB. Especially in the case mixer, characteristic is much better than that line. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1341–1345, 2010; Published online InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25191