Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Patent
1997-05-12
1999-07-06
Ham, Seungsook
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
333171, 333184, H03H 701, H03H 719
Patent
active
059202416
ABSTRACT:
A phase shifter in which the change in phase changes with changes in temperature. The phase shifter includes a plurality of capacitors and inductors connected in series relation to form a filter network. Each of the capacitors has a dielectric material with a temperature coefficient so that the capacitance of the capacitor varies with temperature. Each of the inductors has a ferrite material which has a temperature coefficient so that the inductance of the inductor varies with temperature. The temperature coefficients of the dielectric material of the capacitors and the ferrite material of the inductors have the same sign, i.e, either negative or positive, and preferably are of the same value.
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Cohen Donald S.
EMC Technology LLC
Ham Seungsook
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