대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)
- 대한전자공학회 2004년도 ICEIC The International Conference on Electronics Informations and Communications
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- Pages.23-26
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- 2004
Calibration of frequency propagation channel sounder based on five-port reflectometer
- Yem Van (Dept of Communications and Electronics, TELECOM PARIS) ;
- Braga Judson (Dept of Communications and Electronics, TELECOM PARIS) ;
- Huyart B (Dept of Communications and Electronics, TELECOM PARIS) ;
- Begaud X (Dept of Communications and Electronics, TELECOM PARIS) ;
- de Sousa F.R (Dept of Communications and Electronics, TELECOM PARIS) ;
- Huyen Nguyen Bich (Dept of Electronics and Telecommunications, Hanoi University of Technology)
- 발행 : 2004.08.01
초록
Five-port reflectometer which consists of a ring with 5 arms (two inputs, three outputs) and three RF power detectors has been used as a vector network analyser, a demodulator in the homodyne receiver as well as in Phase Looked Loop (PLL) and so on. Calibration of five-port reflectometer is an important task. In this paper, we present a calibration method of five-port for a propagation channel sounder. The method is based on measurement of the phase differences between the three voltages at the five-port's outputs in order to determine the ratio of two input incident waves. The frequency channel sounder based on five-port is calibrated for each frequency from 2.2 GHz to 2.6 GHz with 1 MHz step. This method can also determine the absolute delays of each propagation path in the propagation channel. The calibration method is validated using measurement data.
키워드