• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.12 no.7
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• pp.1167-1174
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• 2001

Antenna PIM(Passive Intermodulation) level measurement results are rarely credited due to the external signal receiving characteristics of antenna, and seriously affected by the external PIM sources such as anechoic chamber absorber and antenna tower. In this paper, antenna PIM model for the Reflect PIM measurement method is presented. Through the null point phenomena of the PIM level obtained by antenna PIM model simulations and experimental results, we concluded that antenna PIM level measurements are greatly affected by the PIM level generated on the anechoic chamber absorber and the path differences of PIM signal reflected to the antenna.