Radio frequency signal variable attenuation circuit

Details Radio frequency signal variable attenuation circuit Radio frequency signal variable attenuation circuit

1985-06-05

1987-05-26

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307565, 307320, 333 81R, H03K 508, H03H 725

Patent

active

046688820

ABSTRACT:
An RF signal variable attenuation circuit is disclosed having an input terminal for inputting RF signals, an output terminal for outputing attenuated signals, a transmission line connected between the input terminal and the output terminal, first and second PIN diodes inserted in the transmission line in series, a power supply source for supplying a voltage to the first and second PIN diodes, and a control circuit for controlling the conduction of the first and second PIN diodes according to the voltage supplied from the power supply source.

REFERENCES:
patent: 3529266 (1970-09-01), King
patent: 3577103 (1971-05-01), Sparks
patent: 3846724 (1974-11-01), Maier
patent: 3921106 (1975-11-01), Williams
patent: 4019160 (1977-04-01), Kam
patent: 4097827 (1978-06-01), Williams
patent: 4220874 (1980-09-01), Iwata et al.
patent: 4224583 (1980-09-01), Larkin

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