Title :
General TE011-Mode Waveguide Bandpass Filters
Author :
Atia, Ali E. ; Williams, Albert E.
fDate :
10/1/1976 12:00:00 AM
Abstract :
A new structure for high-Q TE011-mode circular waveguide cavities is introduced and shown to realize the most general bandpass-filter transfer functions. Methods of improving the mode purity and suppressing the degenerate TE111 mode are presented. Several experimental narrow-bandpass filters having finite attenuation poles have been constructed; their measured responses show excellent agreement with theory. Average realizable unloaded Q´s of 20000 and 16000 have been achieved at 8 and 12 GHz, respectively.
Keywords :
Band pass filters; Bandwidth; Difference equations; Filtering theory; Finite difference methods; Frequency; Insertion loss; Microwave filters; Tellurium; Transfer functions;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1976.1128929
