In this paper a new class of very simple waveguide filters composed of solely cylindrical posts having the same diameter is presented. In such filters a resonator composed of two cylindrical metal posts placed in antipodal position is used to create band-pass filtering functions having transmission zeros. In particular the first two resonant modes have been exploited: the mode resonating at the higher frequency is used to obtain the pass-band, while that resonating at lower frequency is used as a nonresonating mode and exploited to obtain transmission zeros. The design of multiple cavity filters is presented along with the experimental results of a 4th order filter having 2 transmission zeros.

A new class of pseudo-elliptic waveguide filters using resonant posts

TOMASSONI, Cristiano;SORRENTINO, Roberto
2012

Abstract

In this paper a new class of very simple waveguide filters composed of solely cylindrical posts having the same diameter is presented. In such filters a resonator composed of two cylindrical metal posts placed in antipodal position is used to create band-pass filtering functions having transmission zeros. In particular the first two resonant modes have been exploited: the mode resonating at the higher frequency is used to obtain the pass-band, while that resonating at lower frequency is used as a nonresonating mode and exploited to obtain transmission zeros. The design of multiple cavity filters is presented along with the experimental results of a 4th order filter having 2 transmission zeros.
2012
9781467310857
9781467310864
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/1218489
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