High performance Q-band subharmonic receiver chip set

Hyo Jong Han, Dan An, Won Young Uhm, Sung Chan Kim, Mun Kyo Lee, Bok Hyung Lee, Woo Suk Sul, Sang Yong Lee, Sam Dong Kim, Jin Koo Rhee

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

A high conversion gain receiver chip set for Q-band millimeter-wave wireless communication systems is designed and fabricated by using 0.1 μm GaAs-based pseudomorphic high electron mobility transistors (PHEMTs) and the coplanar waveguide (CPW) library. The fabricated receiver chip set consists of a subharmonic mixer circuit and a low noise amplifier. From the device characterization, the subharmonic mixer shows a maximum conversion gain of ∼4.8 dB at a RF frequency of 40 GHz for a local oscillation (LO) power of 10 dBm at 17.5 GHz. The subharmonic mixer also exhibits a high degree of isolation characteristic of a -35.8 dB for LO-to-IF and a -40.5 dB for LO-to-RF, respectively, at a LO frequency of 17.5 GHz. The low noise amplifier shows a S21 gain of ∼25.6 dB at a RF frequency of 40 GHz. Due to the high performances of the circuits, the fabricated receiver chip set produces a high conversion gain of 30.4 dB for the Q-band application purpose.

Original languageEnglish
Pages621-625
Number of pages5
StatePublished - 2003
EventIEEE TENCON 2003: Conference on Convergent Technologies for the Asia-Pacific Region - Bangalore, India
Duration: 15 Oct 200317 Oct 2003

Conference

ConferenceIEEE TENCON 2003: Conference on Convergent Technologies for the Asia-Pacific Region
Country/TerritoryIndia
CityBangalore
Period15/10/0317/10/03

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