Title :
LTCC wide-band canonical ridge waveguide filters
Author :
Fahmi, Mohamed M. ; Ruiz-Cruz, Jorge A. ; Zaki, K.A. ; Piloto, A.J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA
Abstract :
A canonical LTCC ridge waveguide filter for wide-band application is proposed. A new coupling scheme is employed to achieve the values of the cross couplings needed to increase the bandwidth. The change of the realization of the coupling sections from rectangular to narrow ridge waveguide is shown to eliminate detrimental undesired cross coupling. To validate the concept, rigorous mode matching method is used for full-wave analysis and optimization of a six pole filter. The response is verified with another numerical method, and a prototype is constructed for testing.
Keywords :
ceramic packaging; mode matching; optimisation; ridge waveguides; waveguide filters; LTCC; canonical ridge waveguide filters; coupling scheme; coupling sections; full-wave analysis; mode matching method; narrow ridge waveguide; six pole filter; wide-band filters; Bandwidth; Coupling circuits; Cutoff frequency; Dielectric substrates; Matched filters; Microwave filters; Mode matching methods; Radio frequency; Rectangular waveguides; Wideband;
Conference_Titel :
Microwave Symposium Digest, 2005 IEEE MTT-S International
Print_ISBN :
0-7803-8845-3
DOI :
10.1109/MWSYM.2005.1516572
