1 May 2007 Performance of 94GHz receivers for passive imaging
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64 MMIC receivers built for mm-wave imaging have been systematically characterized. Each receiver comprises three InP MMIC low noise amplifiers and a biased Schottky diode detector in a compact package with a horn antenna. The characterization includes spectral response, responsivity and noise. The noise has both white and 1/f components. The average (±standard deviation) receiver bandwidth is 23.8±3GHz, and the overall noise equivalent temperature difference (NETD) in an integration time of 0.2ms, as used in the imager, is 0.66±0.1K.
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Richard G. Humphreys, Richard G. Humphreys, Stephen M. Taylor, Stephen M. Taylor, Paul A. Manning, Paul A. Manning, Paul D. Munday, Paul D. Munday, Jeff Powell, Jeff Powell, "Performance of 94GHz receivers for passive imaging", Proc. SPIE 6548, Passive Millimeter-Wave Imaging Technology X, 65480H (1 May 2007); doi: 10.1117/12.723784; https://doi.org/10.1117/12.723784

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