94GHz single-balanced diode mixer for FMCW radar applications

Dong Sik Ko, Mun Kyo Lee, Dan An, Bok Hyung Lee, Byeong Ok Lim, Sang Jin Lee, Sung Woon Moon, Byoung Chul Jun, Seok Ho Bang, Jung Dong Park, Wan Joo Kim, Sam Dong Kim, Jin Koo Rhee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, we present a high performance 94 GHz MMIC diode mixer using a 100-nm metamorphic high electron mobility transistor (MHEMT) diode and coplanar waveguide (CPW) 3-dB tandem coupler. A novel single-balanced structure of MHEMT diode mixer was proposed in this work, and 3-dB tandem coupler with the air-bridge structure was used for broadband LO-RF isolation. The fabricated mixer has LO-RF isolation, greater than 19 dB, in 15 GHz bandwidth of 82-97 GHz. The good conversion loss of 14.8 dB was measured at 94 GHz.

Original languageEnglish
Title of host publication2007 Asia-Pacific Microwave Conference, APMC
DOIs
StatePublished - 2007
EventAsia-Pacific Microwave Conference, APMC 2007 - Bangkok, Thailand
Duration: 11 Dec 200714 Dec 2007

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC

Conference

ConferenceAsia-Pacific Microwave Conference, APMC 2007
Country/TerritoryThailand
CityBangkok
Period11/12/0714/12/07

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