DocumentCode :
3552389
Title :
Determination of the pump modulation factor of varactor diodes under operating conditions
Author :
Eisele, K.M.
Volume :
11
fYear :
1965
fDate :
1965
Firstpage :
54
Lastpage :
55
Abstract :
The pump modulation factors m of various GaAs and Si varactor diodes have been measured under operating conditions. The device used for the measurements was a phase sensitive degenerate parametric amplifier with a signal frequency of 5.85 Gc phase locked with a pump frequency at 11.7 Gc. The input impedance of the amplifier varies with relative phase of pumped elastance ( \\theta p ) and signal current ( \\theta s ) according to ZV= RS+ frac{S_{o}}{J\\omega _{s}} + {mS_{o}}{\\omega _{S}}e^{J(\\theta_{P}-2\\theta_{S})} The locus of the impedance is a circle which can be plotted directly on a Smith chart. The radius of this circle yields the modulation factor.
Keywords :
Conductivity; Diodes; Electrical resistance measurement; Electromagnetic heating; Gallium arsenide; Laboratories; Packaging; Silicon; Telephony; Varactors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electron Devices Meeting, 1965 International
Type :
conf
DOI :
10.1109/IEDM.1965.187611
Filename :
1474192
Link To Document :
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