%0 Journal Article
%T A New Frequency Selective Window for Constructing Waveguide Bandpass Filters with Multiple Attenuation Poles
%A Mikio Tsuji
%A Hiroyuki Deguchi
%A Masataka Ohira
%J PIER    C
%D 2011
%I EMW Publishing
%R 10.2528/PIERC11012202
%X This paper presents a novel frequency selective window for waveguide filters. It has a resonant characteristic with two attenuation poles on both sides of a passband, that is, a dual-behavior resonance. Such frequency selective windows make it possible to construct a compact bandpass filter having multiple attenuation poles without any additional coupling structures. As design examples, we show 3-pole Chebyshev waveguide filters with six attenuation poles in both the microwave and the millimeter-wave regions. The validity of the present filters is proven by the comparison of the frequency characteristics between the calculated and the measured results.
%U http://www.jpier.org/pierc/pier.php?paper=11012202