DocumentCode
3066668
Title
Measurements and analysis of the optimisation of HBT circuits for optical demodulator designs
Author
Langlois, P.J. ; Rezazadeh, A.A.
Author_Institution
Dept. of Electron. Eng., King´´s Coll., London, UK
fYear
2000
fDate
2000
Firstpage
242
Lastpage
247
Abstract
The second order non-linearity when using the base-emitter diode or the base-collector diode in an HBT for down conversion is analysed and measured. The non-linearity in the b-e circuit is shown to be at least β times larger than the b-c diode circuit (>90 times in the measured example). The contribution of the non-linearity of the current gain is identified. A circuit with added diodes is also examined
Keywords
bipolar transistor circuits; circuit optimisation; demodulators; heterojunction bipolar transistors; optical frequency conversion; phototransistors; HBT circuit; base-collector diode; base-emitter diode; current gain; design optimisation; frequency down-conversion; nonlinearity; optical demodulator; Demodulation; Design optimization; Diodes; Equivalent circuits; Heterojunction bipolar transistors; Linearity; Nonlinear equations; Nonlinear optics; Optical design; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
High Performance Electron Devices for Microwave and Optoelectronic Applications, 2000 8th IEEE International Symposium on
Conference_Location
Glasgow
Print_ISBN
0-7803-6550-X
Type
conf
DOI
10.1109/EDMO.2000.919067
Filename
919067
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