Electronic scanning antenna

Details Electronic scanning antenna Electronic scanning antenna

1984-11-28

1987-05-19

Blum, Theodore M.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342368, H01Q 326

Patent

active

046672010

ABSTRACT:
An electronic scanning antenna which effects radiation beam scanning based on a phase electronic scanning. The antenna has a plurality of radiation aperture units and power is fed concurrently to the plurality of radiation aperture units within a range of a small elevation angle. Thus, the degradation of a beam is reduced and a narrow beam can be formed with a high efficiency. Further, the antenna is configured wherein an electric field distribution on a radiation aperture plane formed by at least one radiation aperture is set so as to correspond to an electric distribution based on a predetermined design, thereby always normally maintaining aperture efficiency and radiation characteristic of a radiation beam over a range of a predetermined scanning angle.

REFERENCES:
patent: 3526898 (1970-09-01), Plunk et al.
patent: 3945007 (1976-03-01), Radford
patent: 4103303 (1978-07-01), Regenos et al.
patent: 4178581 (1979-12-01), Willey, Sr.
patent: 4446463 (1984-05-01), Irzinski

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