Digital antenna control apparatus for a communications terminal

Details Digital antenna control apparatus for a communications terminal Digital antenna control apparatus for a communications terminal

1974-12-12

1977-06-14

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 74, G01S 342, G01S 344

Patent

active

040300994

ABSTRACT:
Digital control apparatus for automatically slewing i.e. orienting a directive antenna to a quasi-stationary transponder such as a synchronous satellite in orbit above the earth wherein appropriate drive signals for the elevation and/or azimuth axes are provided in response to the received signal from the transponder until the peak or substantially maximum signal strength is sensed. Operationally, digital logic circuitry utilizes the characteristics of the antenna beam pattern to detect the approach toward zero slope near the peak of the pattern to slew the antenna to the peak signal.

REFERENCES:
patent: 3718927 (1973-02-01), Howard et al.
patent: 3842420 (1974-10-01), Rabow

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