Volume 30 Issue 6
Nov.  2010
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Cheng Yueyun, Wang Hongjian, Yi Min, Chen Xue, Liu Guang. Quasi-optical Analysis of FY-3 Satellite Antenna[J]. Journal of Space Science, 2010, 30(6): 596-600. doi: 10.11728/cjss2010.06.596
Citation: Cheng Yueyun, Wang Hongjian, Yi Min, Chen Xue, Liu Guang. Quasi-optical Analysis of FY-3 Satellite Antenna[J]. Journal of Space Science, 2010, 30(6): 596-600. doi: 10.11728/cjss2010.06.596

Quasi-optical Analysis of FY-3 Satellite Antenna

doi: 10.11728/cjss2010.06.596
  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2010-11-15
  • A Quasi-optical analysis of FY-3 satellite radiometer antenna system is described. Equivalent electrical and magnetic current sheet were used for the analysis of wire grid cross polarization which could be down to -42 dB from the main polarization. A Gaussian coupling method was then introduced to analyze the offset parabolic mirror which was fed by a corrugated horn at 90º. As long as the reflector's f/D is large, the coupling matrix which is used to model the offset effect of the reflector can be derived in a simple way. The simulations and measurements demonstrated that quasi-optical analysis can be applied to offset reflectors well with its efficiency and accuracy.

     

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