Volume 33 Issue 11
Nov.  2007
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Su Donglin, Dai Fei, Xie Shuguo, et al. Errors of antenna factor and improved method for NSA test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(11): 1291-1294. (in Chinese)
Citation: Su Donglin, Dai Fei, Xie Shuguo, et al. Errors of antenna factor and improved method for NSA test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2007, 33(11): 1291-1294. (in Chinese)

Errors of antenna factor and improved method for NSA test

  • Received Date: 30 Nov 2006
  • Publish Date: 30 Nov 2007
  • The normalized site attenuation (NSA) was studied during the test process. The measurement errors were mainly brought by the antenna factor, with the mutual impedance analysis. The standard method of measuring antenna factors was introduced and the mutual impedance effect was found to be neglected. The equations of traditional method were proved to be no solution. The conditions were analyzed to decrease the errors of the mutual impedance between antennas. The antenna factor was replaced by the antenna gain, and the mutual impedance effect can be avoided in the antenna gain measurement. The equivalent conditions were proved between the new method and the original method. The validity of the new method was proved by the real test results.

     

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