Dispersive Delay Structures With Asymmetric Arbitrary Group-Delay Response Using Coupled-Resonator Networks With Frequency-Variant Couplings

Maciej Jasiński; Martyna Mul; Adam Lamęcki; Roberto Gomez-Garcia; Michał Mrozowski

doi:10.1109/tmtt.2022.3152503

Dispersive Delay Structures With Asymmetric Arbitrary Group-Delay Response Using Coupled-Resonator Networks With Frequency-Variant Couplings

Abstract

This article reports the design of coupled-resonatorbased microwave dispersive delay structures (DDSs) with arbitrary asymmetric-type group delay response. The design process exploits a coupling matrix representation of the DDS circuit as a network of resonators with frequency-variant couplings (FVCs). The group delay response is shaped using complex transmission zeros (TZs) created by dispersive cross-couplings. We also present an optimization-based synthesis procedure for characteristic polynomials with a prescribed group delay profile. Thus, when compared with prior-art DDS approaches, the proposed DDS solutions allow a general group delay profile to be patterned while incorporating optimization-based coupling matrix design techniques for their synthesis. The design method is validated by full-wave simulations and measurements of three built proof-ofconcept prototypes of DDS devices with different shapes of group delay response in waveguide and microstrip technologies

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Authors (5)

Maciej Jasiński
Martyna Mul
Adam Lamęcki dr hab. inż.
Roberto Gomez-Garcia
- University of Alcalá, Department of Signal Theory and Communications, Polytechnic School
Michał Mrozowski prof. dr hab. inż.

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DOI:: Digital Object Identifier (open in new tab) 10.1109/TMTT.2022.3152503
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Keywords

ANALOG SIGNAL PROCESSING (ASP), COMPLEX TRANSMISSION ZERO (TZ), COUPLING MATRIX, DISPERSIVE DELAY STRUCTURE (DDS), FREQUENCY-VARIANT COUPLING (FVC), GROUP DELAY, MICROSTRIP FILTER, PASSIVE CIRCUIT, PLANAR FILTER, WAVEGUIDE FILTER

Details

Category:

Articles

Type:

artykuły w czasopismach

Published in:

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES no. 70, pages 2599 - 2609,
ISSN: 0018-9480

Language:

English

Publication year:

2022

Bibliographic description:

Jasiński M., Mul M., Lamęcki A., Gomez-Garcia R., Mrozowski M.: Dispersive Delay Structures With Asymmetric Arbitrary Group-Delay Response Using Coupled-Resonator Networks With Frequency-Variant Couplings// IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES -Vol. 70,iss. 5 (2022), s.2599-2609

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