Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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GA Optimized S-Band Quadrafilar Antenna with the Lowest Back Radiation for a Communication Satellite

  • Kahng, Sung-Tek (Dept. of Information & Telecommunication. Engineering, University of Incheon) ;
  • Kim, Joong-Pyo (Korea Aerospace Research Institute)
  • Published : 2009.12.31
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Abstract

In this paper, a quadrafilar antenna is designed to have a lower profile as an essential part of the size reduction technique and lower back radiation(i.e. higher forward radiation) for the S-band telemetry/telecommand(TM/TC) function of a communication satellite. Particularly, to meet the challenging requirements on the higher isolation between the TM/TC antennas and simultaneously a smaller size, the lowest back radiation and lowest cross-polarization, the optimal physical dimensions of the quadrafilar antenna are found by using the Genetic Algorithm(GA). To prove the validity of the proposed antenna design, its 3D electromagnetic analysis and measured results are compared, showing good agreement.

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References

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