DC-8 GHz 11 dB Gain GaInP/GaAs HBT Double balanced Gilbert Micromixer

Meng, C. C. ; Lu, S. S. ; Chen, H. C. ; Chiang, M. H. ; Kuan, J. F. ; Lin, D. C. ; Huang, G. W. (2001) DC-8 GHz 11 dB Gain GaInP/GaAs HBT Double balanced Gilbert Micromixer. In: Gallium Arsenide applications symposium. Gaas 2001, 24-28 September 2001, London.

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Abstract

A wideband GaInP/GaAs HBT micromixer is demonstrated from DC to 8 GHz with 11 dB single-ended conversion gain. The input return loss is better than 10 dB for frequencies up to 9 GHz. The single-to-differential input stage in Gilbert micromixer renders good wideband frequency response and eliminates the need for common mode rejection. P1dB = -7 dBm and IIP3 = -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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