A modified phase center and pattern matching method to reduce the geometry dependence of bilog calibration in standard site method

This study proposed a modified phase center and pattern matching (PCPM) method to reduce antenna factor (AF) variations of Bilog between different geometries of standard site method (SSM). For frequencies below 300 MHz, mutual coupling may have an effect on the results of original PCPM, thereby enlarging AF variations of Bilog. Therefore, a modified PCPM was applied with the results showing that AF variations of a Bilog can be reduced by 1.8 dB after modification