A New Frequency Selective Window for Constructing Waveguide Bandpass Filters with Multiple Attenuation Poles

doi:10.2528/PIERC11012202

PIER C
Progress In Electromagnetics Research C	ISSN: 1937-8718

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A NEW FREQUENCY SELECTIVE WINDOW FOR CONSTRUCTING WAVEGUIDE BANDPASS FILTERS WITH MULTIPLE ATTENUATION POLES

By M. Tsuji, H. Deguchi, and M. Ohira

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Abstract:
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.

Citation:
M. Tsuji, H. Deguchi, and M. Ohira, "A new frequency selective window for constructing waveguide bandpass filters with multiple attenuation poles," Progress In Electromagnetics Research C, Vol. 20, 139-153, 2011.
doi:10.2528/PIERC11012202
http://www.jpier.org/pierc/pier.php?paper=11012202

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