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RESEARCH PRODUCT

Design of a Compact Dual Circular-Polarized Antenna for L-Band Satellite Applications

Loreto Di DonatoGiuseppe DistefanoPatrizia LivreriSanti C. PavoneGino SorbelloConcetto SquadritoHarine GovindarajanPrabagarane NagaradjanePaolo Di Mariano

subject

PhysicsL bandbusiness.industryParabolic reflectorBandwidth (signal processing)Astrophysics::Instrumentation and Methods for Astrophysics020206 networking & telecommunicationsCircular polarization crossed dipoles patch antennas small satellites02 engineering and technologyPolarization (waves)Settore ING-INF/01 - Elettronicalaw.inventionSettore ING-IND/31 - ElettrotecnicaDipoleOpticslaw0202 electrical engineering electronic engineering information engineeringDipole antennaElectrical and Electronic EngineeringAntenna gainbusinessCircular polarization

description

In this paper, we propose the design of a dual circular-polarized antenna for L-band applications (1.1-1.6 GHz). The designed antenna has been developed by considering crossed-dipoles on top of which a circular patch has been placed to properly act on the mutual coupling between the dipoles. The dual circular polarization is achieved by feeding dipoles in quadrature. Moreover, to increase the antenna gain and polarization purity at high elevation angles, a fence of passive monopoles has been added. The proposed antenna can profitably used as primary feed of a low-frequency parabolic reflector.

https://doi.org/10.1109/lawp.2020.2971322