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Compact and Highly Efficient Single and Dual Polarized Aperture Antennas with Integrated Multiport Overmoded Excitation

Abstract : This paper presents a new type of radiating horn-like radiating element which exploits a two- or four-port integrated overmoded power division depending on the aperture type and the requirement for single- or dual-polarization. The general concept is illustrated by two design examples which are proposed in this paper at Ku-Tx band (10.7 - 12.75 GHz); a single-polarized two-access rectangular aperture pyramidal horn and a dual-polarized four-access square aperture horn feed antenna. The generic operational principles call for a power divider which feeds two or four suitably flared waveguide sections which are further connected to a bi- or quad-furcated surface discontinuity for the combination of the incoming fields. Finally, a common waveguide region on top completes the total topology. This type of radiating elements exhibits a compact profile, while at the same time achieves high aperture efficiency (over 90%) due to robust materialization of the desired aperture modal content over a bandwidth of 20%.
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https://hal.archives-ouvertes.fr/hal-03330254
Contributor : Laurent Jonchère Connect in order to contact the contributor
Submitted on : Tuesday, August 31, 2021 - 4:15:11 PM
Last modification on : Tuesday, May 10, 2022 - 12:11:47 PM

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C. Stoumpos, J-P Fraysse, G. Goussetis, R. Sauleau, C. G. Gonzalez, et al.. Compact and Highly Efficient Single and Dual Polarized Aperture Antennas with Integrated Multiport Overmoded Excitation. 15th European Conference on Antennas and Propagation (EuCAP), Mar 2021, Dusseldorf, Germany. ⟨10.23919/EuCAP51087.2021.9411363⟩. ⟨hal-03330254⟩

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