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U. Stumper, “Finding Initial Estimates Needed for the Engen Method of Calibrating Single Six-Port Reflectometers,” IEEE Transactions on Microwave Theory and Techniques, Vol. 38, No. 7, 1990, pp. 946-949. doi:10.1109/22.55790

has been cited by the following article:

• TITLE: Wideband Demodulator Based on Five-Port Correlator for Channel Sounding Applications

  AUTHORS: Imen Sfar, Lotfi Osman, Ali Gharsallah

  KEYWORDS: Calibration Procedure; Channel Sounder; Diode Power Detector; Five-Port Correlator

  JOURNAL NAME: Journal of Electromagnetic Analysis and Applications, Vol.5 No.2, February 28, 2013

  ABSTRACT: We present in this paper a wideband RF demodulator using a five-port correlator and a power detector for channel sounding applications. The demodulator has been fabricated using microstrip components. The correlator receives from the five-port qualities that allow it to be low-cost and less sensitive to the phase and amplitude imbalances. A calibration procedure is proposed to find the complex envelope of the RF signal applied at the input of the five-port correlator. Simulation with Advanced Design System software and measurement results have been conducted to demonstrate its capabilities as a RF signal demodulator operating in a wideband around 2.4 GHz frequency.