High power tuning device using layered varactors
AssigneeRockwell International Corporation
InventorsPeter M. Asbeck, Richard C. Edwards, Garth D. Hammond, Dale W. Penner
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Abstract
A variety of embodiments of varactor diodes are disclosed ranging from an N.times.N matrix assembly of individually packaged diodes arranged in N rows and columns to a multi-continuous layered varactor. The matrix assembly varactor has N rows of discrete devices electrically coupled in parallel and multiple rows vertically aligned and electrically coupled in series to each other. The overall matrix assembly capacitance equals the individual diode capacitance of such assembly. When used as a tuning component across a tank coil transmission line, the RF voltage across any device in the matrix assembly is equal to the tank voltage divided by N.
Claims14
A varactor capacitor filter comprising:
- a plurality of continuous layered varactor diode materials;
- a plurality of choke devices;
- and
- a packaging means;
- wherein said packaging means serves to electrically couple said layered varactor diode materials and said choke devices to allow said varactor capacitor filter to operate at an RF voltage which is increased in proportionally to the number of varactor diode layers utilized.
A varactor capacitor filter comprising:
- a plurality of discrete varactor diodes arranged in an N.times.N matrix assembly;
- a plurality of choke devices;
- and
- a matrix packaging means;
- wherein said matrix packaging means serves to electrically couple said plurality of discrete varactor diodes and said plurality of choke devices to allow said varactor capacitor filter to operate at an RF voltage which is increased in proportionality to the number of varactor diode layers utilized.
A varactor capacitor filter comprising:
- a plurality of discrete varactor diodes each comprising;
- a ceramic alumina substrate having a thickness in the range of 0.025 and 0.050 inches and a surface size in the range of 0.75 to 3.00 square inches;
- a plurality of n.sup.+ doped gallium arsenide anodic layers;
- a plurality of n.sup.- doped gallium arsenide cathodic layers;
- and
- terminal structures for electrically coupling said varactor capacitor filter to a circuit;
- wherein said filter is capable of handling one to one hundred watts of power.
Dependencies are inferred from the claim text.