Title :
A heterostructure barrier varactor sideband generator
Author :
Haiyong Xu ; Hesler, J.L. ; Yiwei Duan ; Crowe, T.W. ; Weikle, R.M.I.I.
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Univ., Charlottesville, VA, USA
Abstract :
A heterostructure barrier varactor (HBV) sideband generator (SBG) is investigated for the first time. Compared with Schottky varactor SBGs, odd sidebands are suppressed and higher output power is possible. Preliminary measurements at 200 GHz have shown conversion efficiencies of 10-15 dB over a 10 GHz tuning range. Simulations and theoretical models are presented to predict and confirm these results. The subharmonic SBG design described in this paper is scaleable to submillimeter wavelengths and can yield a highly tunable CW power source when used in conjunction with a fix-tuned laser.
Keywords :
circuit simulation; circuit tuning; equivalent circuits; millimetre wave frequency convertors; millimetre wave generation; semiconductor device models; varactors; 200 GHz; HBV SBG output power; Schottky varactor SBG; conversion efficiency; equivalent circuits; fix-tuned lasers; frequency upconverters; heterostructure barrier varactor sideband generators; odd sideband suppression; subharmonic SBG tuning range; tunable CW power sources; Laser modes; Laser theory; Laser tuning; Optical design; Power generation; Power lasers; Predictive models; Tunable circuits and devices; Varactors; Wavelength measurement;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210559
