Dispersion reduced SIW leaky-wave antenna by loading metasurface prism

Lei Wang, José Luis Gómez-Tornero, Oscar Quevedo-Teruel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

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.
Original languageEnglish
Title of host publication2018 International Workshop on Antenna Technology (iWAT)
PublisherIEEE
ISBN (Electronic)9781538618516
DOIs
Publication statusPublished - 11 Jun 2018

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