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Compact waveguide broadband dual-polarized horn array with a novel orthomode transducer in Ku-band for high-power SAR systems

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  • S. Sánchez-Sevilleja
  • J.R. Larrañaga-Sudupe

Abstract

A novel compact waveguide-based broadband and dual-polarized Ku-band Synthetic Aperture Radar antenna with a high level of isolation between polarizations and high input power level has been designed for small platforms and unmanned aerial vehicles (UAV). The antenna design is composed of 8 dual-polarized horn antennas in an array configuration fed through a very efficient and novel structure to generate two orthogonal polarizations based on a orthomode transducer to achieve a large bandwidth and an excellent isolation between polarizations needed in a polarimetric system. Finally, as the antenna will be placed inside a pod under the UAV wings it must be lightweight, robust and of small size.

Suggested Citation

  • S. Sánchez-Sevilleja & J.R. Larrañaga-Sudupe, 2014. "Compact waveguide broadband dual-polarized horn array with a novel orthomode transducer in Ku-band for high-power SAR systems," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 28(4), pages 442-458, March.
    • Handle: RePEc:taf:tewaxx:v:28:y:2014:i:4:p:442-458
    DOI: 10.1080/09205071.2013.872056
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