Anthony G Abajian, 941180 Citation Dr, Deland, FL 32724
Anthony Abajian Phones & Addresses
1180 Citation Dr, Deland, FL 32724 386-7408786
Lineboro, MD
Ronkonkoma, NY
3 Danforth Rd, Nashua, NH 03060
Mentions for Anthony G Abajian
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Us Patents
Variable Resistance Attenuator
US Patent:
4216445, Aug 5, 1980
Filed:
Dec 22, 1978
Appl. No.:
5/972199
Inventors:
Anthony Abajian - Ronkonkoma NY
Assignee:
The United States of America as represented by the Secretary of the Army - Washington DC
International Classification:
H01P 122
US Classification:
333 81R
Abstract:
Four PIN diodes are connected, two in parallel oppositely directed at each f two ports of a 3 dB, quadrature hybrid which equally divide the power from an input port. The mismatch produced by the PIN diode resistance in parallel with the matching load resistance reflects part of the power, which combines at the two ports and exits at a fourth port of the hybrid. Direct-current bias to the PIN diodes is adjusted to vary the attenuation. There is also variable resistance and capacitance which serves as variable adjustments on the terminations of the hybrid when the diodes are unbiased.
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