Antenna beam shaping by means of physical rotation of circularly

Details Antenna beam shaping by means of physical rotation of circularly Antenna beam shaping by means of physical rotation of circularly

1992-04-06

1994-02-01

Hajec, Donald

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343757, 343821, H01Q 1906

Patent

active

052835901

ABSTRACT:
Disclosed is an apparatus and method for shaping a beam of radiation from a circularly polarized beam shaping antenna to create a predetermined radiation pattern. A circularly polarized feed horn generates the beam of radiation to be shaped. Circularly polarized radiator elements attached to a ground plane are positioned to receive the beam of radiation. Each radiator element is physically rotated about an axis relative to the ground plane to alter its phase. The radiator elements are then operable to individually radiate a beam of radiation to form a combined radiation beam creating the predetermined radiation pattern.

REFERENCES:
patent: 3045237 (1962-07-01), Marston
patent: 3445850 (1969-05-01), Stegen
patent: 3524188 (1970-08-01), Bowman
patent: 4684952 (1987-08-01), Munson et al.
patent: 4905014 (1990-02-01), Gonzalez et al.
C. C. Chen & Taro Yodokawa, "A Canonical Phasing Technique for Phase Compensation of Circularly Polarized Array Antennas", 1976 AP-S International Symposium, pp. 149-152.

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