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US RE43,266 E1Granted
Rotary attenuator and method of making it
AssigneeTrilithic, Inc.
InventorsBruce G. Malcolm, Michael G. Pazoga, Steven L. Sink
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AssigneeTrilithic, Inc.
InventorsBruce G. Malcolm, Michael G. Pazoga, Steven L. Sink
Estimating the term…
An attenuator includes a housing defining an interior, a front, a rear, and a rotor mounted between front and rear for rotation within housing about an axis of the rotor. First electrical contacts are provided on the housing. Second electrical contacts are provided on the rotor. The rotor includes multiple printed conductor boards. Each PC board includes an electrically relatively non-conductive substrate. One side of each substrate provides conductive areas through which electrically attenuating elements of the attenuator are coupled together to form an attenuating network providing a selected level of attenuation. Electrical contact is made between the first electrical contacts and the electrically attenuating elements of the attenuator through the second electrical contacts.
An attenuator including a housing defining an interior, a rotor mounted for rotation within the housing about an axis of the rotor, first electrical contacts provided on the housing, second electrical contacts being provided on the rotor, and multiple printed conductor (PC) boards for engaging respective second electrical contacts, each PC board including an electrically relatively non-conductive substrate, a first side of each PC board providing electrically relatively conductive areas and electrically relatively non-conductive areas, electrically attenuating elements coupled together in attenuating networks with the electrically relatively conductive areas, the attenuating networks providing selected levels of attenuation, electrical contact being selectively made between the first electrical contacts and selected attenuating networks through the second electrical contacts.
A method of making an attenuator comprising providing a housing defining an interior, mounting a rotor for rotation within the housing about an axis of the rotor, providing first electrical contacts on the housing, providing second electrical contacts on the rotor, and providing multiple printed conductor (PC) boards for engaging respective second electrical contacts, mounting the rotor for rotation within the housing including mounting a die cast rotor for rotation within the housing, the providing of the multiple PC boards includes providing on each PC board an electrically relatively non-conductive substrate, providing on a first side of each PC board electrically relatively conductive areas and electrically relatively non-conductive areas, and coupling electrically attenuating elements together in attenuating networks with the electrically relatively conductive areas to provide selected levels of attenuation.
Dependencies are inferred from the claim text.