Title :
Controlling of microwave prorogation in metallic photonic crystal using plasma column
Author_Institution :
Inst. for Plasma Res., Gandhinagar, India
Abstract :
A metallic photonic crystal of copper rods of diameter 2 mm at lattice constant 10 mm for x-band microwave is fabricated and experiments are carried out to measure flat and forbidden bends for 18 GHz. Positive and negative refraction are studied by creating defaults in the photonic crystal. A plasma column, which is formed by Micro-hollow cathode discharge (MHCD) at atmospheric pressure, is situated between transmitter and photonic crystal. Electromagnetic bend gaps are studied. Due to presence of plasma column forbidden and flat bends can be interchanged. Therefore, transmission of microwave can be controlled by switching ON and OFF the plasma column.
Keywords :
copper; discharges (electric); electromagnetic wave refraction; lattice constants; microwave materials; microwave propagation; photonic band gap; photonic crystals; plasma electromagnetic wave propagation; Cu; X-band microwave; atmospheric pressure MHCD; copper rods; electromagnetic bend gaps; flat bends; forbidden bends; frequency 18 GHz; lattice constant; metallic photonic crystal; microhollow cathode discharge; microwave prorogation; microwave transmission; negative refraction; plasma column switching; positive refraction; size 2 mm; transmitter; Micro-discharges; Microwave; Negative refraction; Photonic crystals; plasma photonic crystals;
Conference_Titel :
Applied Electromagnetics Conference (AEMC), 2009
Conference_Location :
Kolkata
Print_ISBN :
978-1-4244-4818-0
Electronic_ISBN :
978-1-4244-4819-7
DOI :
10.1109/AEMC.2009.5430630
