Symmetric Tapering of Bi-Directionally Fed Leaky-Wave Antennas for Multi-Beam Synthesis

We report a theoretical investigation on the possibilities and trade-offs when tapering a bi-directional fed leaky-wave antenna (LWA) to reduce the side lobes level, when operating with the two opposite antenna ports. It is demonstrated that, for high radiation efficiency designs, the directivity ca...

Full description

Saved in:
Bibliographic Details
Published in2023 17th European Conference on Antennas and Propagation (EuCAP) pp. 1 - 5
Main Authors Gil-Martinez, Alejandro, Poveda-Garcia, Miguel, Canete-Rebenaque, David, Quevedo-Teruel, Oscar, Gomez-Tornero, Jose Luis
Format Conference Proceeding
LanguageEnglish
Published European Association for Antennas and Propagation 26.03.2023
Subjects
antenna efficiency
Apertures
Bidirectional control
Distortion
Europe
Leaky wave antennas
Lighting
Modulation
sidelobe reduction
tapered leaky-wave antennas
Online AccessGet full text
DOI10.23919/EuCAP57121.2023.10133328

Cover

More Information
Summary:We report a theoretical investigation on the possibilities and trade-offs when tapering a bi-directional fed leaky-wave antenna (LWA) to reduce the side lobes level, when operating with the two opposite antenna ports. It is demonstrated that, for high radiation efficiency designs, the directivity can be distorted due to low aperture illumination efficiency if the LWA is not symmetrically tapered with an adequate modulation function. The theory is corroborated with simulations of modulated LWAs in substrate integrated technology.
DOI:10.23919/EuCAP57121.2023.10133328