Design of An Energy Selective Surface with Adjustable Response Threshold

A novel energy selective surface (ESS) with adjustable response threshold is proposed in this article. The controllable ESS is designed with the circuit characteristics difference of PIN diode in ON/OFF state. Moreover, a receiving antenna with envelope detection function is designed as the trigger of ESS, threshold is adjustable by sampling the envelope signal by the controller. Finally, the proposed ESS achieved 20% @ (2.17 ~ 2.66GHz) bandwidth with 1dB insertion loss (IL) and 0 ~ 4GHz shield bandwidth with 15dB shielding effectiveness (SE). A new perspective for adjusting the response threshold of ESS is exhibited by this work.