Inline Waveguide Filter With Transmission Zeros Using a Modified-T-Shaped-Post Coupling Inverter

Muhammad Yameen Sandhu; Maciej Jasiński; Adam Lamęcki; Roberto Gomez-Garcia; Michał Mrozowski

doi:10.1109/lmwc.2022.3208141

Inline Waveguide Filter With Transmission Zeros Using a Modified-T-Shaped-Post Coupling Inverter

Abstrakt

This letter reports the design techniques for a class 2 of inline waveguide bandpass filters with sharp-rejection capabil3 ities at the lower stopband based on a novel nonlinear-frequency4 variant-coupling (NFVC) structure. The proposed NFVC consists 5 of a modified-T-shaped metallic post (MTP) that is placed at the 6 center of the waveguide broad wall with its open arms lying 7 along the waveguide width. The engineered NFVC structure 8 produces a first-order bandpass filtering transfer function with 9 a pair of transmission zeros (TZs) located below the passband 10 range. To demonstrate the usefulness of the proposed NFVC 11 inverter, a 9.9-GHz third-order inline waveguide bandpass filter 12 prototype with two TZs is developed and tested. It consists of 13 two half-wavelength cavity resonators coupled together via the 14 conceived MTP coupling structure. The measured results are in 15 close agreement with the electromagnetic (EM) simulated ones, 16 thus validating the devised waveguide filter design principle

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Autorzy (5)

Muhammad Yameen Sandhu
- Sukkur IBA University
Maciej Jasiński
Adam Lamęcki dr hab. inż.
Roberto Gomez-Garcia
- University of Alcalá
Michał Mrozowski prof. dr hab. inż.

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Słowa kluczowe

3-D FILTER, BANDPASS FILTER, COUPLING-MATRIX SYN18 THESIS, FREQUENCY-DEPENDENT COUPLING, INLINE FILTER, MICROWAVE 19 FILTER, TRANSMISSION ZERO (TZ), WAVEGUIDE FILTER.

Informacje szczegółowe

Kategoria:

Publikacja w czasopiśmie

Typ:

artykuły w czasopismach

Opublikowano w:

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS nr 33, strony 145 - 148,
ISSN: 1531-1309

Język:

angielski

Rok wydania:

2023

Opis bibliograficzny:

Sandhu M. Y., Jasiński M., Lamęcki A., Gomez-Garcia R., Mrozowski M.: Inline Waveguide Filter With Transmission Zeros Using a Modified-T-Shaped-Post Coupling Inverter// IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS -Vol. 33,iss. 2 (2023), s.145-148

DOI: