Design of Reflectance Measurement System for P-Band Portable Absorbing Materials

Based on the testing principle of the bow method, this paper changes the traditional semi-circular arc frame placed vertically into a horizontal straight line, and uses the dual-heel vivaldi antenna as the receiving and transmitting antenna, which is fixed at both ends of the same side of the frame. The test sample is placed in the near-field area of the receiving and transmitting antenna, and a P-band portable reflectivity test system for absorbing materials is built. The measured results can accurately present the reflectivity of different thickness absorbing materials, which verifies the reliability of the system test.