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Design and fabrication of a single‐ended gate mixer for a down‐converter in wireless applications
Author(s) -
Yang Dooyeong,
Chung You Chung
Publication year - 2002
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.10553
Subject(s) - mesfet , frequency mixer , harmonic mixer , electronic mixer , electronic engineering , microwave , electrical engineering , radio frequency , engineering , intermediate frequency , linearity , filter (signal processing) , harmonic , digital down converter , harmonic balance , transistor , voltage , field effect transistor , local oscillator , physics , telecommunications , acoustics , digital signal processing , digital signal , nonlinear system , quantum mechanics
A single‐ended gate mixer with a high conversion gain, low dissipated power, wide dynamic range and good isolation factor is designed and tested. The mixer is composed of a hairpin‐line band‐pass filter, an input/output matching circuit, a GaAs MESFET transistor, and a lumped element low‐pass filter to convert the radio frequency (RF) into an intermediate frequency (IF). In the non‐linearity analysis of a GaAs MESFET, the novel method with a harmonic balance technique is used to analyze the operating characteristics of a mixer circuit. The designed mixer outperforms a general mixer for a down converter in wireless applications. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 35: 189–193, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10553