Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1957-03-15
1976-06-15
Pendegrass, Verlin R.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
244 313, 23515022, 244185, G01S 108
Patent
active
039640531
ABSTRACT:
1. A system adapted to guide an aircraft along a path defined by frequency modulated signals of a transmitted conical scan pattern, comprising a receiver carried by said aircraft to receive said signals, means to detect from said signals and the amplitude modulation of said signals caused by the movement of said aircraft relative to the axis of said conical scan pattern any rate of change of the direction of movement of said aircraft with respect to the nutation axis of said conical scan pattern, and means responsive to said detected rate of change to direct the movement of said aircraft along a path within said conical scan pattern defined by any line of constant scan modulation.
REFERENCES:
patent: 2476301 (1949-07-01), Jenks
patent: 2554188 (1951-12-01), Guanella
patent: 2616640 (1952-11-01), Bedford
patent: R23066 (1948-12-01), Moseley
International Telephone and Telegraph Corporation
O'Halloran John T.
Pendegrass Verlin R.
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