Full-Wave Leaky-Wave Analysis of 1-D Periodic Corrugated Metal Surface Antennas

Despoina Kampouridou; Alexandros Feresidis

doi:10.1109/LAWP.2021.3065887

Full-Wave Leaky-Wave Analysis of 1-D Periodic Corrugated Metal Surface Antennas

Despoina Kampouridou^*, Alexandros Feresidis

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

A full-wave leaky-wave analysis of 1-D periodically corrugated metallic surfaces with wide gaps is presented. Such wide gaps, in the order of half-wavelength, are employed in the most cited designs for corrugated metallic antenna implementation due to the high attainable gain performance. A full-wave periodic unit cell method is described and implemented on a corrugated metal surface design for the first time. The results are compared with the known matrix pencil method. The complex dispersion characteristics verify that these structures operate as leaky-wave antennas. The calculated wavenumber of the leaky mode is then used for the analytical calculation of the radiation patterns of a finite-size antenna, based on a simple array factor approach and a near-field inspection of the electric fields of the simulated unit cell. The calculated patterns are compared to those obtained from a commercial simulation software (CST Microwave Studio), exhibiting a very good agreement.

Original language	English
Article number	9376966
Pages (from-to)	863-867
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	20
Issue number	5
Early online date	12 Mar 2021
DOIs	https://doi.org/10.1109/LAWP.2021.3065887
Publication status	Published - May 2021

Bibliographical note

Funding Information:
Manuscript received February 17, 2021; accepted March 10, 2021. Date of publication March 12, 2021; date of current version May 5, 2021. This work was supported in part by the U.K. Engineering and Physical Sciences Research Council under Grant EP/P008380/1 and in part by the University of Birmingham under a School Postgraduate Scholarship. (Corresponding author: Despoina Kampouridou.) The authors are with the Department of Electronic, Electrical, and Systems Engineering, University of Birmingham, Birmingham B15 2TT, U.K. (e-mail: [email protected]; [email protected]). Digital Object Identifier 10.1109/LAWP.2021.3065887 Fig. 1. Simulation setup for the extraction of the complex wavenumber ky−1 with periodicity d = 19.62 mm, h = 3.315 mm, and w = 13.32 mm.

Publisher Copyright:
© 2002-2011 IEEE.

Keywords

Antenna theory
apertures
bull's eye antennas
corrugated planes
leaky-wave analysis
radiation patterns

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/LAWP.2021.3065887

Cite this

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title = "Full-Wave Leaky-Wave Analysis of 1-D Periodic Corrugated Metal Surface Antennas",

abstract = "A full-wave leaky-wave analysis of 1-D periodically corrugated metallic surfaces with wide gaps is presented. Such wide gaps, in the order of half-wavelength, are employed in the most cited designs for corrugated metallic antenna implementation due to the high attainable gain performance. A full-wave periodic unit cell method is described and implemented on a corrugated metal surface design for the first time. The results are compared with the known matrix pencil method. The complex dispersion characteristics verify that these structures operate as leaky-wave antennas. The calculated wavenumber of the leaky mode is then used for the analytical calculation of the radiation patterns of a finite-size antenna, based on a simple array factor approach and a near-field inspection of the electric fields of the simulated unit cell. The calculated patterns are compared to those obtained from a commercial simulation software (CST Microwave Studio), exhibiting a very good agreement.",

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author = "Despoina Kampouridou and Alexandros Feresidis",

note = "Funding Information: Manuscript received February 17, 2021; accepted March 10, 2021. Date of publication March 12, 2021; date of current version May 5, 2021. This work was supported in part by the U.K. Engineering and Physical Sciences Research Council under Grant EP/P008380/1 and in part by the University of Birmingham under a School Postgraduate Scholarship. (Corresponding author: Despoina Kampouridou.) The authors are with the Department of Electronic, Electrical, and Systems Engineering, University of Birmingham, Birmingham B15 2TT, U.K. (e-mail: [email protected]; [email protected]). Digital Object Identifier 10.1109/LAWP.2021.3065887 Fig. 1. Simulation setup for the extraction of the complex wavenumber ky−1 with periodicity d = 19.62 mm, h = 3.315 mm, and w = 13.32 mm. Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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N2 - A full-wave leaky-wave analysis of 1-D periodically corrugated metallic surfaces with wide gaps is presented. Such wide gaps, in the order of half-wavelength, are employed in the most cited designs for corrugated metallic antenna implementation due to the high attainable gain performance. A full-wave periodic unit cell method is described and implemented on a corrugated metal surface design for the first time. The results are compared with the known matrix pencil method. The complex dispersion characteristics verify that these structures operate as leaky-wave antennas. The calculated wavenumber of the leaky mode is then used for the analytical calculation of the radiation patterns of a finite-size antenna, based on a simple array factor approach and a near-field inspection of the electric fields of the simulated unit cell. The calculated patterns are compared to those obtained from a commercial simulation software (CST Microwave Studio), exhibiting a very good agreement.

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Full-Wave Leaky-Wave Analysis of 1-D Periodic Corrugated Metal Surface Antennas

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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