DocumentCode :
1047307
Title :
Stability criterion for Gunn diodes with injection-limiting cathodes
Author :
Zetsche, Hartmut
Author_Institution :
Institut für Angewandte Festkörperphysik der Fraunhofer-Gesellschaft, Freiburg i. Br., Germany
Volume :
21
Issue :
2
fYear :
1974
fDate :
2/1/1974 12:00:00 AM
Firstpage :
142
Lastpage :
146
Abstract :
According to McCumber [1] a Gunn diode with an ohmic cathode (i.e., "differential cathode conductivity" 
) is stable in a constant-voltage circuit if 
cm-2where 
is the doping-length product. We show that the same stability criterion applies to Gunn diodes with an injection-limiting cathode 
, if 
is allowed to be a function of 
. The value of increases by 30 percent if 
varies from infinity (ohmic cathode) to zero (injection-limiting cathode). If a cathode with negative differential conductivity is realizable, it may be possible to extend the 
region of stable operation of Gunn diodes drastically.
) is stable in a constant-voltage circuit if cm-2where is the doping-length product. We show that the same stability criterion applies to Gunn diodes with an injection-limiting cathode , if is allowed to be a function of . The value of increases by 30 percent if varies from infinity (ohmic cathode) to zero (injection-limiting cathode). If a cathode with negative differential conductivity is realizable, it may be possible to extend the region of stable operation of Gunn diodes drastically.Keywords :
Cathodes; Circuit stability; Conductivity; Current density; Diodes; Electron mobility; Frequency; Gunn devices; Poisson equations; Stability criteria;
fLanguage :
English
Journal_Title :
Electron Devices, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9383
Type :
jour
DOI :
10.1109/T-ED.1974.17883
Filename :
1477698
Link To Document :
