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標題: A monolithic 5.2-GHz single-ended input and single-ended output GaInP/GaAs HBT upconversion Gilbert mixer with integrated oscillator
作者: Meng, C.C.
Hsu, S.K.
Huang, G.W.
關鍵字: GaInP;HBT;mixer;oscillator
Project: Microwave and Optical Technology Letters
期刊/報告no:: Microwave and Optical Technology Letters, Volume 45, Issue 4, Page(s) 277-279.
A truly balanced operation of a 5.2-GHz Gilbert micromixer with a single-ended input and a single-ended output is demonstrated using 2-mu m GaInP/GaAs HBT technology. Because the micromixer has a single-ended input, a passive LC current combiner is used to convert the 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 fully integrated upconversion micromixer has conversion gain of -2.5 dB and OPIdb of - 12.5 dBm 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 the RF output return loss is better than 12 dB for frequencies from 5.15 to 5.35 GHz. (c) 2005 Wiley Periodicals, Inc.
ISSN: 0895-2477
DOI: 10.1002/mop.20795
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