Dual Linear Polarized Antenna Feed for LEO Satellites

Low Earth Orbit (LEO) satellites are regaining the interest of the wireless communications society, as they will be heavily utilized in future wireless communication networks. Transceivers of LEO satellites need high gain antennas with stable characteristics within the operating bandwidth. Corrugated horn antennas are the most commonly used feeds for such antennas. In addition, various satellite systems deploy dual-polarized antennas to enable polarization diversity. In this article, dual polarized satellite feeding structure is proposed consisting of an orthomode transducer and a corrugated horn. The proposed design operates in Ka band from (27-30 GHz). The final integrated system achieves a matching level below -15 dB with a stable gain of 14.2 ± 0.8 dB over the operating band 27-30 GHz.