Wave transmission lines and networks – Attenuators
Reexamination Certificate
2009-02-27
2009-12-08
Jones, Stephen E (Department: 2817)
Wave transmission lines and networks
Attenuators
C338S216000
Reexamination Certificate
active
07629861
ABSTRACT:
A temperature compensation attenuator comprising: a base; a first film thermistor having two edges, a second film thermistor having a first edge, a second edge; and a third edge; an input terminal; an output terminal and a ground terminal; wherein the first film thermistor and the second film thermistor are disposed on the base; one edge of the first film thermistor is contacted to the input terminal; the other edge of the first film thermistor is contacted to the output terminal; the first edge of the second film thermistor is contacted to the input terminal; the second edge of the second film thermistor is contacted to the output terminal, the third edge of the second film thermistor is contacted to the ground terminal; and the first film thermistor has a temperature characteristic opposite to that of the second film thermistor.
Yan Yuejun
Yan Yuepeng
Jones Stephen E
Matthias Scholl P.C.
Scholl Matthias
Yantel Corporation
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