Waveguide Photonic Crystals on Resonant Irises with Characteristics Controlled by n–i–p–i–n-Diodes

Frequency response functions of the microwave photonic crystals based on resonant irises with perturbed periodicity ( n – i – p – i – n -diode array that serves as a conducting layer) are simulated and experimentally studied. The slot of the iris of the photonic crystal is electrically controlled with the aid of the n – i – p – i – n -diode structure. An electrically controlled modulator and a switch of microwave signal are constructed using the photonic crystal on resonant irises working in the direct and inverse regimes.