Wide-Angle Beam-Switching Antenna with Stable Gain Based on a Virtual Image Lens

Author:

Zetterstrom Oskar1ORCID,Fonseca Nelson J. G.2ORCID,Quevedo-Teruel Oscar1ORCID

Affiliation:

1. Division of Electromagnetic Engineering and Fusion Science, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden

2. Antenna and Sub-Millimetre Waves Section, European Space Agency, 2200 AG Noordwijk, The Netherlands

Abstract

Beam-switching antennas based on quasi-optical beamformers can provide cost-effective solutions for high-frequency communication applications. Here, we propose a wide-angle beam-switching planar lens antenna based on the recently presented virtual image lens. The antenna operates from 24 to 28 GHz and produces a beam that can be steered in a 100-degrees range in one plane with less than 2 dB simulated gain variation over the angular range and operational band. The performance of the presented antenna is similar to reported lens antennas with stable gain, but the proposed lens requires a smaller refractive index range to be realized, which alleviates the manufacturing.

Funder

ESA

Publisher

MDPI AG

Reference28 articles.

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3. Substrate Integrated Waveguide (SIW) Rotman Lens and Its Ka-Band Multibeam Array Antenna Applications;Cheng;IEEE Trans. Antennas Propag.,2008

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5. Continuous Transverse Stub Array for Ka-Band Applications;Ettorre;IEEE Trans. Antennas Propag.,2015

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