Test Technique for Suppressing Surface Waves Between Coplanar Antennas by Magnetic Materials

In this paper, the new test system of coplanar antenna surface wave is realized by skeletonizing two antennas at a certain distance on a metal plate, and placing two double-ridged horn antennas located in the same plane with the metal plate. A vector network analyzer is used to test the surface wave path transmission loss between the two antennas, and a time-domain windowing method is used to eliminate the darkroom reflection noise to obtain the surface wave interference strength between the coplanar antennas. And the results of the suppression performance before and after placing.