An ultra-broadband flexible conductor backed coplanar waveguide with triangular edges

Abstract This paper proposes an ultra-broadband flexible conductor backed coplanar waveguide with triangular edges (FCBCPW-TE), comprising a conductor-backed coplanar waveguide (CBCPW) and triangular arrays arranged periodically along the edges. The simulation results show that the periodically arra...

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Main Authors: Tingting Xie, Pengwei Gong, Wen Xie, Jia Chai, He Jiang, Jianchun Liu
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Reports
Subjects:
Online Access:https://doi.org/10.1038/s41598-025-96805-x
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author Tingting Xie
Pengwei Gong
Wen Xie
Jia Chai
He Jiang
Jianchun Liu
author_facet Tingting Xie
Pengwei Gong
Wen Xie
Jia Chai
He Jiang
Jianchun Liu
author_sort Tingting Xie
collection DOAJ
description Abstract This paper proposes an ultra-broadband flexible conductor backed coplanar waveguide with triangular edges (FCBCPW-TE), comprising a conductor-backed coplanar waveguide (CBCPW) and triangular arrays arranged periodically along the edges. The simulation results show that the periodically arranged edge triangles could effectively block leaky waves in the DC-70 GHz frequency range. The design of this flexible transmission line, which propagates TEM mode, is straightforward. Through the optimized design, theoretical analysis, and experimental validation, the measured results show that it has good transmission performance in flat, bent, and twisted states. The measured results show that the insertion loss is less than 0.19 dB/mm from 10 MHz to 70 GHz, and the reflection coefficient is less than − 10 dB. Additionally, the measured group delay per unit length is 4.79 ps-6.18 ps, with a group velocity dispersion less than 1.13 ps2/mm. The proposed FCBCPW-TE, characterized by high frequency, miniaturization, and ultra-thin flexibility, holds promising potential for application in ultra-miniature high-speed communication systems.
format Article
id doaj-art-e5a2b77d849d4f7b9996b907b372eff0
institution OA Journals
issn 2045-2322
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publishDate 2025-04-01
publisher Nature Portfolio
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series Scientific Reports
spelling doaj-art-e5a2b77d849d4f7b9996b907b372eff02025-08-20T02:24:29ZengNature PortfolioScientific Reports2045-23222025-04-011511910.1038/s41598-025-96805-xAn ultra-broadband flexible conductor backed coplanar waveguide with triangular edgesTingting Xie0Pengwei Gong1Wen Xie2Jia Chai3He Jiang4Jianchun Liu5Beijing Institute of Radio Metrology and MeasurementBeijing Institute of Radio Metrology and MeasurementBeijing Institute of Radio Metrology and MeasurementBeijing Institute of Computer Technology and ApplicationBeijing Institute of Radio Metrology and MeasurementBeijing Institute of Radio Metrology and MeasurementAbstract This paper proposes an ultra-broadband flexible conductor backed coplanar waveguide with triangular edges (FCBCPW-TE), comprising a conductor-backed coplanar waveguide (CBCPW) and triangular arrays arranged periodically along the edges. The simulation results show that the periodically arranged edge triangles could effectively block leaky waves in the DC-70 GHz frequency range. The design of this flexible transmission line, which propagates TEM mode, is straightforward. Through the optimized design, theoretical analysis, and experimental validation, the measured results show that it has good transmission performance in flat, bent, and twisted states. The measured results show that the insertion loss is less than 0.19 dB/mm from 10 MHz to 70 GHz, and the reflection coefficient is less than − 10 dB. Additionally, the measured group delay per unit length is 4.79 ps-6.18 ps, with a group velocity dispersion less than 1.13 ps2/mm. The proposed FCBCPW-TE, characterized by high frequency, miniaturization, and ultra-thin flexibility, holds promising potential for application in ultra-miniature high-speed communication systems.https://doi.org/10.1038/s41598-025-96805-xFCBCPW-TETriangular edgesUltra-broadbandFlexible
spellingShingle Tingting Xie
Pengwei Gong
Wen Xie
Jia Chai
He Jiang
Jianchun Liu
An ultra-broadband flexible conductor backed coplanar waveguide with triangular edges
Scientific Reports
FCBCPW-TE
Triangular edges
Ultra-broadband
Flexible
title An ultra-broadband flexible conductor backed coplanar waveguide with triangular edges
title_full An ultra-broadband flexible conductor backed coplanar waveguide with triangular edges
title_fullStr An ultra-broadband flexible conductor backed coplanar waveguide with triangular edges
title_full_unstemmed An ultra-broadband flexible conductor backed coplanar waveguide with triangular edges
title_short An ultra-broadband flexible conductor backed coplanar waveguide with triangular edges
title_sort ultra broadband flexible conductor backed coplanar waveguide with triangular edges
topic FCBCPW-TE
Triangular edges
Ultra-broadband
Flexible
url https://doi.org/10.1038/s41598-025-96805-x
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