Robert G Fleeger DeceasedFullerton, CA
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Fullerton, CA
El Segundo, CA
Phoenix, OR
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Us Patents
Microwave Power Dividers And Combiners Having An Adjustable Terminating Resistor
US Patent:
5705962, Jan 6, 1998
Filed:
Dec 31, 1996
Appl. No.:
8/775323
Inventors:
Robert G. Fleeger - Fullerton CA
Alan L. Kovacs - Long Beach CA
Alan L. Kovacs - Long Beach CA
Assignee:
Hughes Electronics - Los Angeles CA
International Classification:
H01P 512
US Classification:
333136
Abstract:
Microwave apparatus, such as microwave power dividers or combiners, having an adjustable terminating resistor. The present invention allows adjusting or trimming of the resistor and pretesting of substrates on which the apparatus is formed prior to installation of expensive integrated circuit components. The microwave power divider or combiner has a central contact disposed at a midpoint of the terminating resistor. This central contact is thus disposed at the midpoint of the terminating resistor and is coupled to a test point. Outer edges of the central contact are constructed to be parallel to inner edges of impedance paths or traces over which the terminating resistor lies so that each section of the terminating resistor has substantially the same resistance value.
Methods Of Producing Microwave Power Dividers And Combiners Having Split Terminating Resistors With Equally Matched Resistor Sections
US Patent:
5812035, Sep 22, 1998
Filed:
Dec 19, 1996
Appl. No.:
8/769554
Inventors:
Robert G. Fleeger - Fullerton CA
Ron K. Nakahira - La Palma CA
Ron K. Nakahira - La Palma CA
Assignee:
Raytheon Company - Lexington MA
International Classification:
H01P 512
US Classification:
333128
Abstract:
A method of producing a microwave power divider or combiner having equally matched sections of a split terminating resistor. The method initially matches the resistance value of both sections of the split terminating resistor by identifying which section has a lower resistance value. The ratio of the resistance values of the two sections is determined. The section having the lower resistance value is then trimmed until it is equal to the other. The termination sections may then be equally trimmed to provide a desired final resistance value for the terminating resistor.
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