Tx Coaxial Stepped Impedance Resonator Filters With Distinct Transmission Zeros

IEEE Microwave and Wireless Technology Letters 2026

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Authors: Alejandro Buitrago Bernal, Jessica Bénédicto, Jean‐François Favennec, Langis Roy, Éric Rius
DOI: 10.1109/lmwt.2026.3668777
Cited by: 0
References: 10

Abstract

Quarter-wavelength three-section coaxial stepped impedance resonators (SIRs), having two degrees of freedom, allow independent control of the first resonance and antiresonance. Utilizing an original interconnection and based on polarity inversion, it is possible with this kind of resonator to design the nth-order bandpass filters offering n distinct transmission zeros in the upper stopband. To validate the principle, we designed and fabricated a demonstrator three-section fourth-order filter in aluminum at L-band, for which we also simulated the multipactor threshold. The experimental results are presented and discussed.

Fields of Study & Subjects

Microwave Engineering and Waveguides Antenna Design and Analysis Radio Frequency Integrated Circuit Design

Publication details

Journal / source
IEEE Microwave and Wireless Technology Letters
Volume
36
Issue
7
Pages
1116–1119
Publication date
5 March 2026
Language
EN