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Ku‐band SiGe HBT I/Q subharmonic mixer with reactive quadrature generators
Author(s) -
Tseng ShengChe,
Syu JinSiang,
Su JenYi,
Wei HungJu,
Meng Chinchun,
Huang GuoWei
Publication year - 2010
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25281
Subject(s) - heterojunction bipolar transistor , subharmonic , harmonic mixer , dbm , quadrature (astronomy) , electrical engineering , radio frequency , microwave , power consumption , polyphase system , local oscillator , physics , engineering , optoelectronics , amplifier , power (physics) , telecommunications , voltage , transistor , bipolar junction transistor , cmos , nonlinear system , quantum mechanics
Abstract This article demonstrates a high‐frequency 0.35‐μm SiGe HBT subharmonic downconverter with reactive in‐phase and quadrature‐phase (I/Q) generators.Two reactive I/Q generators are integrated in our work to provide differential quadrature RF and LO signal. The I/Q subharmonic downconverter with single‐ended LO, RF, and IF (I/Q) ports has a conversion gain of 1 dB, IP 1dB of −10 dBm, IIP 3 of 0 dBm, and IIP 2 of 21 dBm at 16.4 GHz. The magnitude and phase errors between the I and Q channels are 1.34% and 0.6°, respectively. The dc power consumption of this I/Q mixer without output buffers is approximately 5 mW. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1516–1520, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25281