Title :
5 GHz MMIC optically controlled oscillator design from nonlinear modelling of microstrip photo-induced switching devices
Author :
Faci, S. ; Tripon-Canseliet, C. ; Algani, C. ; Deshours, F. ; Alquié, G. ; Formont, S. ; Chazelas, J.
Author_Institution :
LISIF-UPMC, Paris, France
Abstract :
Progress in the photoswitching device modelling is reviewed. These passive structures working thanks to the photoconductivity effects, present efficient ON/OFF ratios and suitable phase shift. Insertion losses are the most inconvenient of this component. For 50 μm length gap on GaAs substrate, insertion losses vary from -45 to -25 dB in the frequency range 0.1 to 40 GHz under 130 mW power illumination. More performances with this device are obtained when it is used to optically controlled MMIC devices. A novel oscillator according to this procedure is presented. Harmonic balance code simulation results of this optoelectronic circuit reveal a microwave signal generation at a frequency of 4.985 GHz and a power -7.2 dBm. This system, which works only when a suitable optical signal is applied at the top of the circuit, is under test.
Keywords :
III-V semiconductors; MMIC oscillators; gallium arsenide; integrated circuit design; integrated circuit modelling; integrated optoelectronics; microstrip components; photoconducting switches; voltage-controlled oscillators; 0.1 to 40 GHz; 130 mW; 25 to 45 dB; GaAs; MMIC optically controlled oscillator design; harmonic balance code simulation; microstrip photo-induced switching device; microwave signal generation; nonlinear modelling; optoelectronic circuit; phase shift; photoconductivity effect; photoswitching device modelling; power illumination; Insertion loss; MMICs; Microstrip; Nonlinear optical devices; Nonlinear optics; Optical control; Optical design; Optical devices; Optical losses; Oscillators;
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
DOI :
10.1109/EUMC.2005.1608810
