Title :
New Small Size, Wideband 180° Ring Couplers: Theory and Experiment
Author :
Murgulescu, M.-H. ; Legaud, P. ; Moisan, E. ; Penard, E. ; Goloubkoff, M. ; Zaquine, I.
Author_Institution :
France Telecom, CNET LAB/RSD/ESD, Route de Trégastel, BP 40, 22301 Lannion Cedex, France. Phone: 33-96053825, Fax: 33-96051008
Abstract :
In this paper a general 180° hybrid ring coupler is presented. Analytic design fornulas allow a simple design. Small coupler dimensions and wide bandwidth may be attained using coplanar strips. Couplers have been demonstrated both at low microwave frequencies (6 Ghz) and in the millimeter-wave range (38 GHz).
Keywords :
Bandwidth; Coplanar transmission lines; Couplers; Frequency; Microstrip; Phase shifters; Slotline; Strips; Transmission line theory; Wideband;
Conference_Titel :
Microwave Conference, 1994. 24th European
Conference_Location :
Cannes, France
DOI :
10.1109/EUMA.1994.337287
