Bachbauer F, Gold G (2025)
Publication Type: Conference contribution
Publication year: 2025
Publisher: Institute of Electrical and Electronics Engineers Inc.
Pages Range: 961-964
Conference Proceedings Title: 2025 55th European Microwave Conference, EuMC 2025
Event location: Utrecht, NLD
ISBN: 9782874870811
DOI: 10.23919/EuMC65286.2025.11234994
This article is about the occurrence of Fano resonances in microwave resonator measurements. In a transmission measurement setup of a resonator, the intended Lorentz curve is deformed because of an additional signal path between the two necessary excitations. This can lead to incorrect figures for the quality factor and even for the resonance frequency. Depending on the coupling structure, this can appear in any resonator measurement in transmission mode. Here, two E-band assemblies consisting of identical resonators but different coupling locations are used as an example. The origin of Fano type resonances is briefly explained, which can be modeled as a two-way propagation with a resonant and an additional continuous path. Based on the electrical characterization of the two resonators, it is shown that this effect can be compensated, i.e. delivering correct figures for quality factor and resonance frequency, which is important in many applications, especially material characterization. The proposed method requires only one additional measurement and no further assumptions. Finally, the improvement of this compensation method and the relative error in case of neglecting the occurrence of Fano type resonances is discussed.
APA:
Bachbauer, F., & Gold, G. (2025). Compensation of Fano Resonances in Microwave Resonators. In 2025 55th European Microwave Conference, EuMC 2025 (pp. 961-964). Utrecht, NLD: Institute of Electrical and Electronics Engineers Inc..
MLA:
Bachbauer, Felix, and Gerald Gold. "Compensation of Fano Resonances in Microwave Resonators." Proceedings of the 55th European Microwave Conference, EuMC 2025, Utrecht, NLD Institute of Electrical and Electronics Engineers Inc., 2025. 961-964.
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