A fully integrated 5.2 GHz GaInP/GaAs HBT upconversion micromixer with output LC current combiner and oscillator

Chin-Chun Meng*, S. K. Hsu, A. S. Peng, S. Y. Wen, G. W. Huang

*Corresponding author for this work

Research output: Contribution to journalConference article

9 Scopus citations

Abstract

A 5.2 GHz upconverslon micromixer with output LC current combiner and Integrated oscillator Is demonstrated in 2 μm GaInP/GaAs HBT technology in this paper. Micromixer has a single-ended input and a passive LC current combiner is used to convert mixer differential output into a single-ended output. A cross-coupled LC oscillator with oscillation frequency of 4.3 GHz and a cascode buffer amplifier are also integrated in the same chip. The die size is 1 mm2. The fully integrated upconversion micromixer has conversion gain of -2.5 dB, OP1dB of -12.5 dBm and 40 dB RF-IF Isolation when input IF=0.9 GHz and thus output RF=5.2 GHz. The IF input return loss is better than 25 dB for frequencies up to 6 GHz while RF output return loss is better than 12 dB for frequencies from 5.15 GHz to 5.35 GHz.

Original languageEnglish
JournalIEEE MTT-S International Microwave Symposium Digest
Volume1
DOIs
StatePublished - 18 Aug 2003
Event2003 IEEE MTT-S International Microwave Symposium Digest - Philadelphia, PA, United States
Duration: 8 Jun 200313 Jun 2003

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