Title :
An active square loop frequency selective surface
Author :
Chang, T.K. ; Langley, R.J. ; Parker, E.A.
Author_Institution :
Electron. Eng. Labs., Kent Univ., UK
Abstract :
An active frequency selective surface incorporating PIN diodes as switches is discussed. Waveguide simulation studies show that the frequency response of the surface can be electronically switched from that of a reflecting structure to a transmitting structure. A semi-empirical model based on a series-connected LC equivalent circuit approach gives agreement with measurements.<>
Keywords :
active antennas; antenna theory; equivalent circuits; frequency response; microwave antenna arrays; p-i-n diodes; semiconductor switches; FSS; PIN diodes; active square loop; frequency response; frequency selective surface; model; reflecting structure; series-connected LC equivalent circuit; switches; transmitting structure; Capacitance; Circuit simulation; Diodes; Equivalent circuits; Frequency response; Frequency selective surfaces; Geometry; Resonant frequency; Surface waves; Switches;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
