Title :
Six-port reflectometer realization using two microstrip three-section couplers
Author_Institution :
Microstrip Dept., Electron. Res. Inst., Cairo, Egypt
Abstract :
The single-section couplers are narrow band devices, so in order to broaden the useful bandwidth, three-section couplers are used. In this paper a system of two of three-section couplers is used to construct a six-port reflectometer. The realized six-port reflectometer is calibrated and used to measure different unknown complex terminations. The results of the six-port reflectometer is found to be in good agreement with the measurements of the vector network analyzer (HP-8510C) with an error not exceeding 4% in magnitude and 4° in phase in the frequency range (2.4-4.4 GHz)
Keywords :
calibration; microstrip couplers; multiport networks; reflectometers; 2.4 to 4 GHz; HP-8510C vector network analyzer; calibration; complex termination measurement; frequency range; microstrip three-section couplers; six-port reflectometer; Bandwidth; Couplers; Couplings; Frequency; Impedance; Magnetic circuits; Microstrip; Narrowband; Propagation constant; Scattering parameters;
Conference_Titel :
Radio Science Conference, 2001. NRSC 2001. Proceedings of the Eighteenth National
Conference_Location :
Mansoura
Print_ISBN :
977-5031-68-0
DOI :
10.1109/NRSC.2001.929158
