Miniature Broadband Electromagnetic Wave Absorber for X-band Signals

This paper contains a unique electromagnetic (EM) radiation absorber for X-band signals. The presented EM-wave absorber exhibits a high absorptivity than conventional absorbers. The unit-cell of the EM-wave absorber is comprised of a single square loop with multiple resistive loads. The absorber is designed to resonate at a frequency of 10 GHz with a bandwidth of 4.35 GHz. The overall size of the unit-cell is 6.25 mm $\times$ 6.25 mm when constructed on a Rogers RT/Duroid 6002 laminate with a thickness of 3.04 mm. Utilizing a 3D EM solver by CST Microwave Studio that is commercially accessible, the proposed absorber was designed and analyzed. Comparing the suggested absorber to already presented EM-wave absorbers, demonstrates its benefit.