Title :
A new structure for a six port reflectometer by using a five port ring
Author :
Ciminelli, C. ; D´Orazio, A. ; De Sario, M. ; Petruzzelli, V. ; Prudenzano, F.
Author_Institution :
Dipt. di Elettrotecnica ed Elettronica, Politecnico di Bari, Italy
Abstract :
This paper presents a new structure for a six-port reflectometer (SPR) which uses a symmetric five-port ring cascade-connected to a backward coupler. The performance of the ring-based SPR has been compared with that of a SPR which uses four 90° hybrids. Circuit design criteria, developed by means of the commercial computer code Advanced Design System (ADS), show that the ring configuration allows to obtain a higher cut-off frequency and lower attenuation coefficients
Keywords :
calibration; microwave reflectometry; multiport networks; reflectometers; Advanced Design System; attenuation coefficients; backward coupler; cascade connection; cut-off frequency; six port reflectometer; symmetric five-port ring; Bandwidth; Calibration; Circuit synthesis; Coupling circuits; Detectors; Equations; Frequency; Power dividers; Power measurement; Reflection;
Conference_Titel :
Electrotechnical Conference, 2000. MELECON 2000. 10th Mediterranean
Conference_Location :
Lemesos
Print_ISBN :
0-7803-6290-X
DOI :
10.1109/MELCON.2000.880397
