Feeder link antenna

Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...

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343781R, 343786, 343DIG2, H01Q 312

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active

058700609

ABSTRACT:
A steerable feeder link antenna is formed of a steerable reflector and a stationary feed horn assembly. A novel feed horn assembly allows dual mode transmit and receive functions for circularly polarized microwaves. The feed horn assembly includes a four arm turnstile junction coupled to a feed horn through the feed horn's side wall to couple transmit frequencies and an axially coupled transmission line for the receive frequencies. Each turnstile junction arm incorporates chokes for the receive frequencies. The transmission line's cut off frequency is above the transmit frequency to prevent transmit signals from interfering with receive signal receivers.

REFERENCES:
patent: 3560976 (1971-02-01), Foldes
patent: 3696434 (1972-10-01), Sciambi
patent: 3968497 (1976-07-01), Bui Hai
patent: 4199764 (1980-04-01), Williams et al.
patent: 4228410 (1980-10-01), Goudey et al.
patent: 4258366 (1981-03-01), Green
patent: 4420756 (1983-12-01), Hamada et al.
patent: 4586051 (1986-04-01), Saitto et al.
patent: 4847574 (1989-07-01), Gauthier et al.
patent: 5003321 (1991-03-01), Smith et al.
patent: 5258768 (1993-11-01), Smith
Shiau et al, "NASA Acts Automatic Antenna Feed System" pp. 83-86, 1986 IEEE AP-S Symposium Digest, Jun. 1986.
Patent Abstracts of Japan, JP 03236614, Oct. 22, 1991, E1156, vol. 16, No. 22, Jan. 20, 1992.

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