Journal of Astronomy and Space Sciences

The Korean Space Science Society (한국우주과학회)
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Development of a Dual-Circular Polarizer for the KVN Receivers

  • Chung, Moon-Hee (Radio Astronomy Division, KASI (Korea Astronomy & Space Science Institute)) ;
  • Je, Do-Heung (Radio Astronomy Division, KASI (Korea Astronomy & Space Science Institute)) ;
  • Han, Seog-Tae (Radio Astronomy Division, KASI (Korea Astronomy & Space Science Institute)) ;
  • Lee, Jung-Won (Radio Astronomy Division, KASI (Korea Astronomy & Space Science Institute))
  • Published : 2009.09.15
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Abstract

A stepped septum polarizer has been designed and fabricated for the 43 GHz band KVN receiver system. The dual-circular polarizer converts left and right hand circularly polarized signals into linear polarizations in two separated rectangular waveguides. Measurements show that the performance of the designed septum polarizer covering 42-48 GHz frequency band is adequate to meet the requirement of KVN receivers. Especially, a polarizer for the KVN receiver of 85-95 GHz frequency band can be fabricated by scaling the dimensions of the septum polarizer developed in this paper.

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References

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