Design of a Compact Four-Way Dual Polarization Orthomode Power Divider for Multiport Radiating Elements

Abstract : The concept and design of a novel compact power divider exhibiting dual-polarization and its use as a feeder for a Fabry-Perot cavity antenna comprising 4 input ports is presented. The dual and in-phase polarization on each of the four circular waveguides is achieved by using 4 five-port turnstile junctions accompanied by two 8-by-1 power division structures. The power divider ends up to two ports (each for one polarization) so that it can be used as a feeding network for an antenna array. The design is fully metallic, a feature that makes this feeder an ideal candidate for satellite applications. The design band is 3.65 to 3.95 GHz, presenting a Return Loss better than 20 dB and an input-output isolation (orthogonal modes) better than 30 dB. The exciter is further connected to Fabry-Perot cavity antenna and the simulation results of the total feed are presented.
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Conference papers
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-02277956
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, September 4, 2019 - 9:08:56 AM
Last modification on : Thursday, October 24, 2019 - 11:06:24 AM

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  • HAL Id : hal-02277956, version 1

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Segolene Tubau, Charalampos Stoumpos, Jean -Philippe Fraysse, Adrien Cottin, Ronan Sauleau, et al.. Design of a Compact Four-Way Dual Polarization Orthomode Power Divider for Multiport Radiating Elements. 13th European Conference on Antennas and Propagation (EuCAP), Mar 2019, Krakow, Poland. ⟨hal-02277956⟩

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