Title :
Broadband directional coupler using dielectric loaded slit
Author :
Oh-hashi, H. ; Asao, H. ; Ishida, O.
Author_Institution :
Mitsubishi Electric Corp., Kanagawa, Japan
Abstract :
A broadband 40-dB directional coupler using coupling slits opened in common ground conductors between parallel coaxial lines has been fabricated. Dielectric plates are loaded in the slits to compensate for the directivity degradation due to ground conductor discontinuities at the slit ends. The directivity is greater than 24 dB.<>
Keywords :
compensation; directional couplers; equivalent circuits; broadband; common ground conductors; coupling slits; dielectric loaded slit; dielectric plates; directional coupler; parallel coaxial lines; phase velocity; Conductors; Coupling circuits; Degradation; Dielectrics; Directional couplers; Equivalent circuits; Frequency measurement; Tellurium; Transmission line discontinuities; Transmission line theory;
Conference_Titel :
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1209-0
DOI :
10.1109/MWSYM.1993.277025