Title :
Stop-band improvement of rectangular waveguide filters using different width resonators: selection of resonator widths
Author :
Morelli, M. ; Hunter, I. ; Parry, R. ; Postoyalko, V.
Author_Institution :
Filtronic plc, UK
Abstract :
Rectangular waveguide resonators having different widths can be mixed in order to improve the stopband performance of band-pass filters. Two effective procedures for the choice of the resonator widths are presented and implemented to realise X-band 6-cavity filters which hold 30 dB of attenuation over a frequency range 40% wider than a standard filter. Theoretical and experimental results are shown and commented on.
Keywords :
band-pass filters; cavity resonator filters; microwave filters; passive filters; rectangular waveguides; waveguide filters; X-band 6-cavity filters; band-pass filters; rectangular waveguide filters; rectangular waveguide resonators; resonator width selection; stop-band improvement; Attenuation; Band pass filters; Equivalent circuits; Microwave filters; Rectangular waveguides; Resonance; Resonant frequency; Resonator filters; Shape; Waveguide discontinuities;
Conference_Titel :
Microwave Symposium Digest, 2001 IEEE MTT-S International
Conference_Location :
Phoenix, AZ, USA
Print_ISBN :
0-7803-6538-0
DOI :
10.1109/MWSYM.2001.967215
