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Characterization and Comparison of Formulas for Optimizing Broadside Radiation and Null Beams in 2D Leaky-Wave Antennas
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Characterization and Comparison of Formulas for Optimizing Broadside Radiation and Null Beams in 2D Leaky-Wave Antennas
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Journal Article
Characterization and Comparison of Formulas for Optimizing Broadside Radiation and Null Beams in 2D Leaky-Wave Antennas
2025
Overview
Two-dimensional (2D) leaky-wave antennas (LWAs) are commonly designed to radiate pencil beams at broadside and/or scanned conical beams. Recently, the possibility to radiate narrow null patterns at broadside has also been preliminarily explored. In this work, we first review the design rules to obtain a pencil beam from an infinite 2D LWA and then show how they change for having a beam with a narrow null at broadside. The effects of antenna truncation are also accounted for in both cases, and numerical results show how the optimum conditions are in turn affected. Finally, full-wave validations of practical structures excited with either horizontal or vertical dipoles validate the analysis.
Publisher
Cambridge University Press
Subject
