Self-Polarizing Fabry-Perot Antennas Based on Polarization Twisting ElementReport as inadecuate




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1 IETR - Institut d-Electronique et de Télécommunications de Rennes 2 Thales Alenia Space

Abstract : A new configuration of a self-polarizing Fabry-Perot FP antenna is presented to generate circular polarization with high gain levels using a simple linearly polarized feed. It consists of an FP resonator combined with a polarization-twisting ground plane. An analytical model is proposed to facilitate the antenna design, and the corresponding results are shown to be in very close agreement with full-wave simulations. The experimental prototype built in -band exhibits a combined bandwidth 3 dB axial ratio, 3 dB gain drop, and 10 dB impedance matching of 3% with a maximum realized gain of 18.0 dB. The antenna is completely shielded with an aperture size of and a height of only . Such antennas are attractive candidates for high-power space applications at low frequencies -to -bands where standard horns are very bulky.

Keywords : horns Fabry- Perot resonators self-polarization Circular polarization





Author: Shoaib Muhammad - Ronan Sauleau - Guido Valerio - Laurent Le Coq - Hervé Legay -

Source: https://hal.archives-ouvertes.fr/



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