DC to 8 GHz 11 dB gain Gilbert micromixer using GaInP/GaAs HBT technology |
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| Authors: | Meng C.C. Lu S.S. Chiang M.H. Chen H.C. |
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| Affiliation: | Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan; |
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| Abstract: | A wideband GaInP/GaAs heterojunction bipolar transistor (HBT) micromixer from DC to 8 GHz with 11 dB single-ended conversion gain is demonstrated. The input return loss is better than 10 dB for frequencies up to 9 GHz. The single-to-differential input stage in a Gilbert micromixer renders good wideband frequency response and eliminates the need for common-mode rejection. IP/sub 1dB/=-17 dBm and IIP/sub 3/=-7 dBm are achieved for a small local oscillator power of -2 dBm when LO=5.35 GHz and RF=5.7 GHz. |
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