Title :
LTCC wide-band ridge-waveguide bandpass filters
Author :
Rong, Yu ; Zaki, Kawthar A. ; Gipprich, John ; Hageman, Michael ; Stevens, Daniel
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
A ridge-waveguide tap-in coupling structure is applied to the design of wide-band ridge-waveguide bandpass filters using low-temperature cofired ceramic (LTCC). The design is based on rigorous mode-matching modeling, which takes the higher order mode interactions into account. A design procedure is described and design examples are given to demonstrate the features of the proposed coupling structure. A wide-band LTCC ridge-waveguide filter is simulated and successfully built. Good experimental results are obtained
Keywords :
band-pass filters; ceramics; microwave filters; mode matching; ridge waveguides; waveguide filters; 3.2 GHz; 4.1 GHz; 7.5 GHz; 7.6 GHz; LTCC wide-band ridge-waveguide bandpass filters; coupling structure; design procedure; higher order mode interactions; low-temperature cofired ceramic; mode-matching modeling; ridge-waveguide tap-in coupling structure; Band pass filters; Ceramics; Circuits; Dielectric losses; Dielectric substrates; Microwave filters; Nonhomogeneous media; Radio frequency; Waveguide discontinuities; Wideband;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
