Dispersion reduced SIW leaky-wave antenna by loading metasurface prism

Wang, Lei and Gómez-Tornero, José Luis and Quevedo-Teruel, Oscar (2018) Dispersion reduced SIW leaky-wave antenna by loading metasurface prism. In: 2018 International Workshop on Antenna Technology (iWAT) :. IEEE. ISBN 9781538618516

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Abstract

Leaky-wave antennas (LWAs) are well-known for the high directivity, wide impedance bandwidth, and the beam-scanning performance with frequency. However, in the system that requires high-speed data transfer, wide system band and high directivity, LWAs are struggling with their beam squint effect in the radiation patterns, which limits their applications. In this paper, a dispersive metasurface prism is loaded to a dispersive LWA, reducing the LWA's dispersion, to make the LWA wide band radiating at a specific direction. A substrate integrated waveguide (SIW) LWA is taken to demonstrate the proposed concept with metasurface prism implemented by metallic vias. Full-wave simulation results show that the proposed low-dispersive SIW LWA has the main radiating direction at φ=24°, with half-power beamwidth of 8°, steers only ±0.5° from 33 to 38 GHz.

Item Type:
Contribution in Book/Report/Proceedings
ID Code:
217745
Deposited By:
Deposited On:
09 Apr 2024 09:30
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jul 2024 05:27