In this work we analyze the beamwidth properties of one-dimensional (1-D) bidirectional leaky-wave antennas (LWAs) when the antenna is pointing close to broadside. Existing formulas neglect the effect of the aperture truncation, which affects the exact value of the beamwidth for practical realizations of 1-D LWAs. Using a rigorous theoretical framework, we find a transcendental beamwidth equation, whose numerical solution furnishes the exact value of the beamwidth for finite-length 1-D bidirectional LWAs. Numerical results confirm that the aperture truncation considerably affects the beamwidth properties, especially for limited efficiencies.
Beamwidth evaluation of finite-length 1- D bidirectional leaky-wave antennas / Fuscaldo, W; Galli, A; Jackson, D. - (2018), pp. 139-140. (Intervento presentato al convegno 2018 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting, APSURSI 2018 tenutosi a Boston; United States) [10.1109/APUSNCURSINRSM.2018.8608709].
Beamwidth evaluation of finite-length 1- D bidirectional leaky-wave antennas
Fuscaldo W
;Galli A
;
2018
Abstract
In this work we analyze the beamwidth properties of one-dimensional (1-D) bidirectional leaky-wave antennas (LWAs) when the antenna is pointing close to broadside. Existing formulas neglect the effect of the aperture truncation, which affects the exact value of the beamwidth for practical realizations of 1-D LWAs. Using a rigorous theoretical framework, we find a transcendental beamwidth equation, whose numerical solution furnishes the exact value of the beamwidth for finite-length 1-D bidirectional LWAs. Numerical results confirm that the aperture truncation considerably affects the beamwidth properties, especially for limited efficiencies.| File | Dimensione | Formato | |
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