Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave Components

We fully explore the properties of a novel uniplanar metamaterial-inspired substrate integrated waveguide (SIW) for realizing easy-to-fabricate mmWave components. Conventional SIWs have a complex fabrication process, especially for higher frequencies, due to the need for drilling holes and injecting...

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Main Authors: Maria-Thaleia Passia, Traianos V. Yioultsis
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Open Journal of Antennas and Propagation
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Online Access:https://ieeexplore.ieee.org/document/10945796/
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author Maria-Thaleia Passia
Traianos V. Yioultsis
author_facet Maria-Thaleia Passia
Traianos V. Yioultsis
author_sort Maria-Thaleia Passia
collection DOAJ
description We fully explore the properties of a novel uniplanar metamaterial-inspired substrate integrated waveguide (SIW) for realizing easy-to-fabricate mmWave components. Conventional SIWs have a complex fabrication process, especially for higher frequencies, due to the need for drilling holes and injecting metallization. We substitute the vias of the conventional SIW with grounded single complementary split-ring resonators (CSRRs). We employ a coupled-mode theory framework to guide the waveguide synthesis and gain insight into the underlying physics of periodic grounded uniform and multi-element CSRR metasurfaces, that are the key elements of the corresponding CSRR SIWs. The CSRR SIW parameters are then fine-tuned by a more detailed FEM eigenmode solver. We verify the uniplanar single-CSRR SIW's merit and applicability by fabricating and experimentally characterizing the performance of a CSRR SIW waveguide section and antenna. The uniplanar single-CSRR SIW offers considerably simpler fabrication than both the conventional SIW and previously proposed CSRR SIW variations while maintaining performance. Compared to other SIW variations, the uniplanar single-CSRR SIW has a greater design flexibility, as we can change the number of CSRR rows and also use a non-uniform multi-element CSRR pattern to achieve advanced functionalities. The CSRR-SIW-based periodic leaky-wave antenna (PLWA) has competitive radiation characteristics and simpler fabrication than a corresponding SIW PLWA.
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spelling doaj-art-c8df548259ee49198d86e0c51a7c8f612025-08-20T03:36:11ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312025-01-016497898810.1109/OJAP.2025.355628210945796Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave ComponentsMaria-Thaleia Passia0https://orcid.org/0000-0002-9967-566XTraianos V. Yioultsis1https://orcid.org/0000-0002-6712-8936School of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki, GreeceSchool of Electrical and Computer Engineering, Aristotle University of Thessaloniki, Thessaloniki, GreeceWe fully explore the properties of a novel uniplanar metamaterial-inspired substrate integrated waveguide (SIW) for realizing easy-to-fabricate mmWave components. Conventional SIWs have a complex fabrication process, especially for higher frequencies, due to the need for drilling holes and injecting metallization. We substitute the vias of the conventional SIW with grounded single complementary split-ring resonators (CSRRs). We employ a coupled-mode theory framework to guide the waveguide synthesis and gain insight into the underlying physics of periodic grounded uniform and multi-element CSRR metasurfaces, that are the key elements of the corresponding CSRR SIWs. The CSRR SIW parameters are then fine-tuned by a more detailed FEM eigenmode solver. We verify the uniplanar single-CSRR SIW's merit and applicability by fabricating and experimentally characterizing the performance of a CSRR SIW waveguide section and antenna. The uniplanar single-CSRR SIW offers considerably simpler fabrication than both the conventional SIW and previously proposed CSRR SIW variations while maintaining performance. Compared to other SIW variations, the uniplanar single-CSRR SIW has a greater design flexibility, as we can change the number of CSRR rows and also use a non-uniform multi-element CSRR pattern to achieve advanced functionalities. The CSRR-SIW-based periodic leaky-wave antenna (PLWA) has competitive radiation characteristics and simpler fabrication than a corresponding SIW PLWA.https://ieeexplore.ieee.org/document/10945796/Complementary split-ring resonatorsperiodic leaky-wave antennasubstrate-integrated waveguideeigenmode analysiscoupled-mode theory
spellingShingle Maria-Thaleia Passia
Traianos V. Yioultsis
Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave Components
IEEE Open Journal of Antennas and Propagation
Complementary split-ring resonators
periodic leaky-wave antenna
substrate-integrated waveguide
eigenmode analysis
coupled-mode theory
title Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave Components
title_full Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave Components
title_fullStr Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave Components
title_full_unstemmed Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave Components
title_short Analysis and Experimental Characterization of a Uniplanar Metamaterial-Inspired Substrate Integrated Waveguide for Easy-to-Implement mmWave Components
title_sort analysis and experimental characterization of a uniplanar metamaterial inspired substrate integrated waveguide for easy to implement mmwave components
topic Complementary split-ring resonators
periodic leaky-wave antenna
substrate-integrated waveguide
eigenmode analysis
coupled-mode theory
url https://ieeexplore.ieee.org/document/10945796/
work_keys_str_mv AT mariathaleiapassia analysisandexperimentalcharacterizationofauniplanarmetamaterialinspiredsubstrateintegratedwaveguideforeasytoimplementmmwavecomponents
AT traianosvyioultsis analysisandexperimentalcharacterizationofauniplanarmetamaterialinspiredsubstrateintegratedwaveguideforeasytoimplementmmwavecomponents