A Self-Tuning Electromagnetic Shutter

作者：Ouedraogo Raoul O^*; Rothwell Edward J; Chen Shih Yuan; Temme Andrew

来源：IEEE Transactions on Antennas and Propagation, 2011, 59(2): 513-519.

DOI：10.1109/TAP.2010.2096401

• Terms-Electromagnetic scattering
• frequency selective surfaces (FSSs)
• genetic algorithms (GAs)
• slot antennas
• tunable filters

A self-tuning electromagnetic shutter is introduced, consisting of a slotted metallic surface with computer controlled switches placed across the slots. By opening and closing the switches, the transmissivity of the surface may be adjusted over a broad range of frequencies. In particular, the surface may be placed into open and closed states, creating an electronically-controllable shutter. The ability of the shutter to act as an open or a closed surface over a broad range of frequencies, incidence angles, and polarization states is investigated using simulations and measurements, and the feasibility of the system is thereby demonstrated.

• 出版日期2011-2