Publisher DOI: 10.1109/IWAT.2018.8379174
Title: Dispersion reduced SIW leaky-wave antenna by loading metasurface prism
Language: English
Authors: Wang, Lei 
Gomez-Tornero, Jose Luis 
Quevedo-Teruel, Oscar 
Issue Date: 11-Jun-2018
Source: 2018 IEEE International Workshop on Antenna Technology, iWAT2018 - Proceedings : 1-3 (2018)
Abstract (english): 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.
Conference: 14th IEEE International Workshop on Antenna Technology, iWAT2018 
URI: http://hdl.handle.net/11420/2713
ISBN: 978-1-5386-1851-6
Institute: Theoretische Elektrotechnik E-18 
Type: InProceedings (Aufsatz / Paper einer Konferenz etc.)
Funded by: This work is supported by Alexander von Humboldt foundation.
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