Inline Microwave Filters With N+1 Transmission Zeros Generated by Frequency-Variant Couplings: Coupling-Matrix-Based Synthesis and Design

Martyna Mul; Maciej Jasiński; Adam Lamęcki; Roberto Gómez-García; Michał Mrozowski

doi:10.1109/tcsii.2021.3125460

Inline Microwave Filters With N+1 Transmission Zeros Generated by Frequency-Variant Couplings: Coupling-Matrix-Based Synthesis and Design

Abstrakt

A general coupling-matrix-based synthesis methodology for inline Nth-order microwave bandpass filters (BPFs) with frequency-variant reactive-type couplings that generate N+1 transmission zeros (TZs) is presented in this brief. The proposed approach exploits the formulation of the synthesis problem as three inverse nonlinear eigenvalue problems (INEVPs) so that the coupling matrix is built from their sets of eigenvalues. For this purpose, an optimization nonlinear least-squares procedure is employed. The theoretical foundations of the engineered INEVP coupling-matrix-based synthesis framework are described. In addition, its effectiveness is verified through various synthesis examples of a third-order BPF with four TZs based on different circuit models. Moreover, as experimental validation, a 2.4-GHz microstrip prototype of the distributed-element BPF synthesis example is built and measured.

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Autorzy (5)

Martyna Mul mgr inż.
Maciej Jasiński
Adam Lamęcki dr hab. inż.
Roberto Gómez-García prof.
- University of Alcala
Michał Mrozowski prof. dr hab. inż.

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Wersja publikacji: Accepted albo Published Version
DOI:: Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1109/TCSII.2021.3125460
Licencja: Copyright (2021 IEEE)

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Słowa kluczowe

BANDPASS FILTER (BPF), COUPLING MATRIX, FILTER SYNTHESIS, MICROSTRIP FILTER, MICROWAVE FILTER, NONLINEAR EIGENVALUE PROBLEM (NEVP), RF FILTER, TRANSMISSION ZERO (TZ)S.

Informacje szczegółowe

Kategoria:

Publikacja w czasopiśmie

Typ:

artykuły w czasopismach

Opublikowano w:

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS nr 69, strony 824 - 828,
ISSN: 1549-7747

Język:

angielski

Rok wydania:

2022

Opis bibliograficzny:

Mul M., Jasiński M., Lamęcki A., Gómez-García R., Mrozowski M.: Inline Microwave Filters With N+1 Transmission Zeros Generated by Frequency-Variant Couplings: Coupling-Matrix-Based Synthesis and Design// IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS -Vol. 69,iss. 3 (2022), s.824-828

DOI: