Frequency-scanning leaky-wave slot antenna array based on serpentine waveguide with open stopband suppression
Jaque Jimenez, Alvaro-Patricio (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Zamora González, Gerard (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)
Bonache Albacete, Jordi (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica)

Date:	2024
Description:	5 pàg.
Abstract:	A periodic leaky-wave antenna with backward-to-forward scanning capability is presented. Two versions of the antenna, one with bidirectional radiation and the other with unidirectional radiation, are introduced. The proposed structure, composed of 30 unit cells, is based on a meandered rectangular waveguide loaded with transverse radiating slots. Effective suppression of the open stopband is achieved allowing for efficient broadside radiation at 5 GHz. Measured and simulated S-parameters, radiation pattern, and gain are reported. The experimental results demonstrate a backward-to-forward scanning capability from -35° to 42° for both the unidirectional and bidirectional versions, with a maximum measured gain of 15. 5 and 16. 5 dB, respectively.
Grants:	Agencia Estatal de Investigación BES-2017-081387 Agencia Estatal de Investigación TEC2016-75650-R
Rights:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Bidirectional radiation pattern ; Frequency scan antenna ; Leaky-wave antenna ; Waveguide
Published in:	IEEE antennas and wireless propagation letters, Vol. 23, issue 1 (January 2024) , p. 344-348, ISSN 1536-1225

DOI: 10.1109/LAWP.2023.3324063

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