Volume 33 Issue 1
Jan.  2013
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Wang Hongjian, Hao Qiyan, Yi Min, Chen Xue, Liu Guang, Liu Shihua, Zhao Xin. Radiation patterns of big antennas based on optics measurement[J]. Journal of Space Science, 2013, 33(1): 115-119. doi: 10.11728/cjss2013.01.115
Citation: Wang Hongjian, Hao Qiyan, Yi Min, Chen Xue, Liu Guang, Liu Shihua, Zhao Xin. Radiation patterns of big antennas based on optics measurement[J]. Journal of Space Science, 2013, 33(1): 115-119. doi: 10.11728/cjss2013.01.115

Radiation patterns of big antennas based on optics measurement

doi: 10.11728/cjss2013.01.115
  • Received Date: 2011-10-28
  • Rev Recd Date: 2012-03-25
  • Publish Date: 2013-01-15
  • A new method to measure the large-aperture antenna radiation patterns was proposed. It is difficult for far-field, near-field and CATR measurement to meet the measurement requirements of electrically large antenna. Surface measurement of parabolic reflector antenna by photogrammetry at multiple points can achieve high accuracy, even electronic theodolite and laser interferometer can achieve more accuracy to meet surface measurement requirement of large-aperture terahertz antenna. This method used the data obtained by actual optical measurement to simulate the real antenna radiation by physical optics method. Because of using the real antenna measured data, this simulation method gave the actual antenna gain and radiation results. The simulation results agreed well with the antennas patterns obtained by the real near-field tests. This method was fast and much adaptable for the large-aperture antenna.

     

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