Method of transmitting glide slope navigation signals for aircra

Details Method of transmitting glide slope navigation signals for aircra Method of transmitting glide slope navigation signals for aircra

1974-05-28

1976-04-13

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343108M, 343109, G01S 118, G01S 144

Patent

active

039507548

ABSTRACT:
A multiple element antenna array provides a separate beam of carrier signal from each element in a pattern of beams spaced at different angles above the horizon. The array is adjusted upwardly to avoid obstructions on the horizon, and a program of modulation is applied to the separate beams to define the desired glide slope path while compensating for the mechanical upward adjustment of the array.

REFERENCES:
patent: 3774214 (1973-11-01), Toman et al.

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