Title:
【発明の名称】時間遅延ビーム形成
Document Type and Number:
Japanese Patent JPH07505027
Kind Code:
A
Abstract:
Optical systems are disclosed which are capable of generating and rapidly changing time delays of electrical signals for true time delay beam formation and beam steering. The systems utilize an interferometer configuration. A first optical modulator and a Fourier transform lens define a Fourier transform plane in a first leg of the interferometer. In a second leg of the interferometer, a second optical modulator provides beam steering to a prism stack, which produces a set of plane reference waves having a range of orientations required to generate a desired range of time delays. Preferably the optical modulators are acousto optic Bragg cells. Alternatively, a holographic optic element could be used in place of the prism stack.
Inventors:
Gezel Leslie H
Raffuse James L
Raffuse James L
Application Number:
JP51112993A
Publication Date:
June 01, 1995
Filing Date:
December 10, 1992
Export Citation:
Assignee:
Essex corporation
International Classes:
H01Q3/30; G02F2/00; G06E3/00; H01Q3/26; H04B10/11; H04B10/118; G02F1/21; (IPC1-7): H04B10/105; H01Q3/30; H04B10/10; H04B10/22
Attorney, Agent or Firm:
Kenji Yoshida (2 outside)