Results
Title

Design and Realization of Chebyshev Bandstop Filters Based on Ceramic Resonators.

Authors

Tiede, Jonas F.; Eibert, Thomas F.

Abstract

Distributed bandpass or band-reject filters generally become larger as the design center frequency decreases. To achieve suitable filters with small dimensions even at center frequencies below 2 GHz, ceramic resonators can be used. These components essentially represent transmission lines with a specified, potentially large permittivity, making them physically short while maintaining a desired electrical length. In this paper, Chebyshev-approximated band-reject filters using capacitors and transmission lines, the latter being represented by ceramic resonators, are investigated. Three filter prototypes are built and their performance is evaluated by measurements. Reasonable bandstop filter properties are found, which are the better the narrower the filter bandwidth is.

Subjects

CRYSTAL filters; RESONATORS; BANDPASS filters; ELECTRIC lines; BUILDING performance

Publication

Advances in Radio Science, 2021, Vol 19, p117

ISSN

1684-9965

Publication type

Academic Journal

DOI

10.5194/ars-19-117-2021