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Low-Profile Frequency-Scanned Antenna Based on Substrate Integrated Waveguide

Yang, Xue-Xia, Yu, Yingjie, Di, Duqi, Gao, Steven (2017) Low-Profile Frequency-Scanned Antenna Based on Substrate Integrated Waveguide. IEEE Transactions on Antennas and Propagation, 65 (4). pp. 2051-2056. ISSN 0018-926X. E-ISSN 1558-2221. (doi:10.1109/TAP.2017.2669961) (KAR id:60162)

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http://dx.doi.org/10.1109/TAP.2017.2669961

Abstract

A beam scanning flat antenna array with the frequency that covers about the whole X/Ku-band is proposed in this paper. The radiation element is the continuous transverse stub (CTS) constituted by the substrate integrated waveguide (SIW). The CTS array is fed by a linear source which is a SIW parabolic reflector, and good impedance matching characteristics within a broad bandwidth are obtained. The beam steering direction is tunable with the frequency increasing within the operation band. The design principles of the SIW based CTS array and the feed structure are explained in details. One 16-element array is simulated, designed and fabricated. The measurement results show a scanning angle range from 52.2° to -16.8° with the 3-dB gain decreasing within the operation band from 8.5 GHz to 14.1GHz. At the center frequency of 12 GHz, it achieves a maximum gain of 18.1 dBi with an array size of 11.7?0×1.28?0, the first sidelobe level is -11.4 dB and the 3-dB beamwidth is 6.5°.

Item Type: Article
DOI/Identification number: 10.1109/TAP.2017.2669961
Uncontrolled keywords: Frequency-scanned antennas (FSA), continuous transverse stub (CTS), substrate integrated waveguide (SIW), flat array
Subjects: T Technology
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Tina Thompson
Date Deposited: 01 Feb 2017 14:48 UTC
Last Modified: 16 Feb 2021 13:42 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/60162 (The current URI for this page, for reference purposes)
Gao, Steven: https://orcid.org/0000-0002-7402-9223
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