A new configuration of inline combline filter with pseudoelliptic response is presented in this paper. The proposed filter consists of transversally placed and mutually rotated com-bline resonators inside a cylindrical tube. Various filter configurations with arbitrary placed transmission zeros (TZ) can be obtained by proper resonators arrangement. Furthermore, in comparison to conventional cross-coupled filters, the proposed configuration does not require any additional coupling elements and provides more compact overall dimensions. To validate the proposed configuration a fifth-order filter with two TZ has been designed, manufactured, and measured.

Pseudoelliptic Combline Filter in a Circularly Shaped Tube

MacChiarella, Giuseppe
2018-01-01

Abstract

A new configuration of inline combline filter with pseudoelliptic response is presented in this paper. The proposed filter consists of transversally placed and mutually rotated com-bline resonators inside a cylindrical tube. Various filter configurations with arbitrary placed transmission zeros (TZ) can be obtained by proper resonators arrangement. Furthermore, in comparison to conventional cross-coupled filters, the proposed configuration does not require any additional coupling elements and provides more compact overall dimensions. To validate the proposed configuration a fifth-order filter with two TZ has been designed, manufactured, and measured.
2018
IEEE MTT-S International Microwave Symposium Digest 2018
9781538650677
Bandpass filters; combline filters; cross-coupling; inline filter; transmission zeros; tubular filter; 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/11311/1064245
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