Title :
Photonic bandgap structures for high power microwave applications
Author :
Shapiro, M.A. ; Chen, C. ; Sirigiri, J.R. ; Smirnova, E.I. ; Temkin, R.J.
Author_Institution :
Plasma Sci. & Fusion Center, Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
The advantages of using photonic bandgap (PBG) structures in vacuum electron devices and transmission lines are discussed. Excellent mode selectivity in PBG structures permits them to be employed as overmoded interaction structures in microwave tubes for either high power (>10 MW) or extremely high frequency (>100 GHz) operation. A 140 GHz highly overmoded gyrotron oscillator has been experimentally demonstrated. The theoretical study of PBG structures for high power microwave devices has been carried out. These theoretical results have been used to design a gyrotron device interaction circuit and a 90 GHz, oversized, highly mode-selective PBG waveguide.
Keywords :
Brillouin zones; Q-factor; dispersion relations; gyrotrons; microwave oscillators; optical waveguides; photonic band gap; photonic crystals; waveguides; 140 GHz; 90 GHz; Brillouin zone; PBG waveguide; Q-factor; dispersion relation; gyrotron device interaction circuit; gyrotron oscillator; high power microwave application; microwave device; microwave tube; photonic bandgap structure; photonic crystal; transmission line; vacuum electron device; Circuits; Electron devices; Frequency; Gyrotrons; Microwave devices; Microwave oscillators; Photonic band gap; Power transmission lines; Transmission line theory; Waveguide theory;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1339151
