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A wideband millimeter wave six-port reflectometer using four diode detectors calibrated without a power ratio standard

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2 Author(s)
Ghannouchi, F.M. ; Microwave Res. Lab., Ecole Polytech. de Montreal, Que., Canada ; Bosisio, R.G.

An 18-40 GHz coaxial six-port reflectometer using four diode detectors calibrated without a power ratio standard is presented. The hardware configuration of the six-port junction, the linearization of the diode detectors, and the calibration of the six-port reflectometer are discussed. Absolute power measurements or a high-quality variable attenuator is not required during the linearization of the diode detectors. A comparison between experimental results obtained by the six-port reflectometer and a Hewlett Packard HP 8510C Automatic Network Analyzer on a 3-dB attenuator terminated by a short circuit is presented

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Instrumentation and Measurement, IEEE Transactions on  (Volume:40 ,  Issue: 6 )