Precision control of RF attenuators for STC applications

Details Precision control of RF attenuators for STC applications Precision control of RF attenuators for STC applications

1981-05-21

1983-11-15

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

367900, G01S 734

Patent

active

044158971

ABSTRACT:
Two STC configurations for precision control of RF attenuators, each configuration utilizing a log-scale electronic attenuator, are disclosed. The first configuration includes a D/A converter/linear-to-log module combination to provide a log range ramp; the second configuration utilizes a log table ROM/D-A converter to provide a precision log range ramp, the range so generated controlling the log-scale electronic attenuator utilized in the radio frequency receiver.

REFERENCES:
patent: 3765020 (1973-10-01), Seager et al.
patent: 4053870 (1977-10-01), Noe
patent: 4106872 (1978-08-01), Soderstrom
patent: 4228435 (1980-10-01), Nevin

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