International Journal of Wireless and Microwave Technologies (IJWMT)
IJWMT Vol. 6, No. 5, 8 Sep. 2016
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A Low-Cost Noise Wave Correlator for Noise Parameters Extraction by Cold Noise Power Measurement
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Author(s)
Index Terms
6-port network, noise parameters, noise waves, noise correlation matrix, calibration, noise figure analyzer
Abstract
Conventionally, the noise parameters of a Device under Test (DUT) which generally characterize the noise performance of the DUT, are obtained via the impedance tuner technique. The authors have previously presented a technique which eliminates the need for impedance tuner, and rather employs an 8-port network that enables the extraction of the noise correlation matrix of a given DUT and thus its noise parameters. In this paper, we present a further simplification of the 8-port network technique, which also eliminates the need for a conventional external noise source. Cold noise powers emanating from a DUT are measured via a 6-port network with the aid of matched termination. The measured noise powers provide sufficient information for determining the noise wave correlation matrix of a DUT, which are then converted into the conventional 2-port noise parameters. The proposed technique is simple, fast and is verified to give a good estimation of the noise parameters of selected DUTs.
Cite This Paper
Abdul-Rahman Ahmed, Kyung-Whan Yeom,"A Low-Cost Noise Wave Correlator for Noise Parameters Extraction by Cold Noise Power Measurement", International Journal of Wireless and Microwave Technologies(IJWMT), Vol.6, No.5, pp.10-21, 2016. DOI: 10.5815/ijwmt.2016.05.02
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