Title :
A 26-GHz band dielectric waveguide diplexer with flange interfaces
Author :
Sano, Ko ; Ito, Kei
Author_Institution :
TOKO, Inc., Saitama, Japan
Abstract :
The new dielectric waveguide diplexer as an alternative to the conventional waveguide diplexer is presented. Crystalline quartz is employed as the dielectric material because of its ultra low loss. The quality factor of the dielectric waveguide resonator becomes 2,000 at 26GHz with that. Furthermore, a transition structure between a hollow waveguide and a dielectric-filled waveguide is developed and used for the flange interfaces that make the diplexer connectable with hollow waveguide circuits. The fabricated diplexer exhibits the practical performance with the miniature size and the cost-effective construction at 26-GHz band.
Keywords :
Q-factor; dielectric resonator filters; dielectric waveguides; microwave filters; multiplexing equipment; quartz; waveguide filters; waveguide transitions; 26 GHz; crystalline quartz; dielectric material; dielectric resonator filters; dielectric waveguide diplexer; dielectric waveguide resonator; dielectric-filled waveguide; flange interfaces; hollow waveguide circuits; quality factor; transition structure; waveguide filters; waveguide transitions; Ceramics; Crystallization; Dielectric losses; Dielectric materials; Flanges; Frequency; Hollow waveguides; Permittivity; Resonator filters; Waveguide transitions;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516574
