Ultrahigh accuracy digital programmable attenuator

Details Ultrahigh accuracy digital programmable attenuator Ultrahigh accuracy digital programmable attenuator

1993-10-26

1995-04-18

Gensler, Paul

Wave transmission lines and networks

Attenuators

323354, H03H 724

Patent

active

054082056

ABSTRACT:
A high accuracy programmable attenuator for accurately selecting and maintaining desired values of attenuation for a high frequency RF signal. The attenuator is comprised of a plurality of cells wherein each cell is comprised of an individual attenuator, a switch and a bias resistor. Each bias resistor is comprised of a plurality of individual resistors arranged in a binary sequence and wire bonds are used to short out undesired resistors for compensating for insertion loss and obtaining desired attenuation. The attenuators of the circuit are also arranged in a binary sequence so as to allow the user to select from a large variety of attenuations in small increments.

REFERENCES:
patent: 3646484 (1972-02-01), Maxwell et al.
patent: 3713037 (1973-01-01), Hopfer

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