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A Low-Cost and Stable Millimeter-Wave Transmission System Using a Transmission-Filter-Less Double-Side-Band Millimeter-Wave Self-Heterodyne Transmission Technique
Yozo SHOJI Kiyoshi HAMAGUCHI Hiroyo OGAWA
IEICE TRANSACTIONS on Communications
Publication Date: 2003/06/01
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Communication Devices/Circuits
millimeter-wave, self-heterodyne, double-side-band, phase-noise, frequency-offset,
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We describe a low-cost and extremely stable millimeter-wave transmission system that uses a double-side-band (DSB) millimeter-wave self-heterodyne transmission technique. This technique allows us to use a comparatively low-cost and unstable millimeter-wave oscillator regardless of the modulation format. Furthermore, a transmission band-pass-filter (BPF) is not needed in the millimeter-wave band. The system cost can therefore be substantially reduced. We have theoretically and experimentally evaluated the carrier-to-noise power ratio (CNR) performance that can be obtained when using this technique relative to that attainable through a conventional millimeter-wave self-heterodyne technique where a single-side-band signal is transmitted. Our results show that the DSB self-heterodyne transmission technique can improve CNR by more than 3 dB.