Apparatus for determining the direction of arrival of applied en

Details Apparatus for determining the direction of arrival of applied en Apparatus for determining the direction of arrival of applied en

1979-08-02

1981-06-23

Tubbesing, T. H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343 5SA, 343112C, G01S 328

Patent

active

042753996

ABSTRACT:
Apparatus is provided comprising two antennas generally oriented in non-parallel directions such that their effective apertures are different relative to received radiation, each antenna being individually connected to two integrated optica spectrum analyzers. Switching means is provided which alternately switches signals provided by the two antennas between the two integrated optic spectrum analyzers. A microcomputer is connected to the outputs of the two integrated optic spectrum analyzers for comparing the relative intensities of signals received therefrom and provide a signal indicative of the direction of arrival of radiation received by the two antennas.

REFERENCES:
patent: 3991418 (1976-11-01), Bennett
B. Chen et al., Diffraction-Limited Geodesic Lens for Integrated Optics Circuits; Applied Physics Letters, vol. 36, No. 6, Sep. 15, 1978, pp. 511-513.
M. K. Barnoski et al., Design Fabrication and Integration of Components for an Integrated Optic Spectrum Analyzer; Ultrasonics Symposium Proceedings of IEEE, 1978, pp. 74-78.
D. L. Hecht, Spectrum Analysis using Acousto-Optics Devices; Optical Engineering, vol. 16, No. 5, Sep./Oct. 1977, pp. 461-466.
M. C. Hamilton et al., An Integrated Optic RF Spectrum Analyzer; Optical Engineering, vol. 16, No. 5, pp. 475-478, Sep./Oct. 1977.

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