The paper presents a novel approach for realizing a compact filtering structure composed of single-mode low-loss rectangular waveguide cavities able to implement high-selectivity transfer functions of elliptic type. The creation of transmission zeros is obtained by disposing the cavities in a suitable geometrical configuration and exploiting the properties of the selected resonant mode (TE102). The proposed approach is employed in the design of a four-pole elliptic filter at Ka-band. This is the basic building block for the extension to a 6-pole filter with 2 transmission zeros that can be used in low-loss high-power and high-selectivity diplexers required by modern multibeam payload of last generation satellites operating at Ka-band and above.

A compact waveguide filtering structure with transmission zeros for multi-beam satellites

Macchiarella, G.
2017-01-01

Abstract

The paper presents a novel approach for realizing a compact filtering structure composed of single-mode low-loss rectangular waveguide cavities able to implement high-selectivity transfer functions of elliptic type. The creation of transmission zeros is obtained by disposing the cavities in a suitable geometrical configuration and exploiting the properties of the selected resonant mode (TE102). The proposed approach is employed in the design of a four-pole elliptic filter at Ka-band. This is the basic building block for the extension to a 6-pole filter with 2 transmission zeros that can be used in low-loss high-power and high-selectivity diplexers required by modern multibeam payload of last generation satellites operating at Ka-band and above.
2017
IEEE MTT-S International Microwave Symposium Digest 2017
9781509063604
Bandpass filters; Elliptic function filters; Modal cross-coupling; Transmission Zeros (TZs); Radiation; Condensed Matter Physics; Electrical and Electronic Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1064239
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