Title :
Simulation results for a novel optically controlled photonic bandgap structure for microstrip lines
Author :
Cadman, Darren ; Hayes, David ; Miles, Robert ; Kelsall, Robert
Author_Institution :
Inst. of Microwaves & Photon., Leeds Univ., UK
Abstract :
A novel optically controlled one dimensional (1D) photonic bandgap (PBG) microstrip structure is proposed. This device consists of a 50 Ω microstrip transmission line and a PBG ground plane both deposited onto a photoconductive substrate. With no optical illumination the structure exhibits a well-defined stopband. When light is focused through the holes in the ground plane and onto the substrate, electron-hole pairs are generated to form a photoinduced plasma. This increases the conductivity of the exposed region of the substrate and forms a complete ground plane. The structure then acts as a conventional microstrip line and the bandstop characteristics are switched off. S-parameter simulation results are presented
Keywords :
band-stop filters; microstrip filters; microstrip lines; microwave filters; microwave photonics; photoconductivity; photonic band gap; semiconductor plasma; 10 GHz; 1D PBG microstrip structure; PBG ground plane; S-parameter simulation; Si; Si photoconductive substrate; bandstop characteristics; electron-hole pair generation; microstrip transmission line; one dimensional PBG structure; optically controlled PBG structure; photoinduced plasma; photonic bandgap structure; Conductivity; Lighting; Microstrip; Optical control; Photoconducting devices; Photonic band gap; Plasma properties; Plasma simulation; Scattering parameters; Transmission lines;
Conference_Titel :
High Frequency Postgraduate Student Colloquium, 2000
Conference_Location :
Dublin
Print_ISBN :
0-7803-6590-9
DOI :
10.1109/HFPSC.2000.874091
