Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Patent
1989-11-17
1991-12-24
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
324 77R, G01R 2316
Patent
active
050756958
ABSTRACT:
The disclosure relates to methods and apparatus for separating radio signals arriving from different directions and for multiplexing signals intended for receivers dispersed in different directions. The methods and apparatus employ a plurality of antennas with spacing and individual feedline characteristics designed so that a modulation is imparted to each of a plurality of incident signals, for receiving antennas, and radiated signals for transmitting antennas, the modulation level of each signal being determined by the direction of propagation of the signal and by the spacing between antenna pairs. Accordingly, the orientation of lines connecting pairs of antennas as well as the spacing between antennas are set to inhibit the modulation in a particular direction, or to strip a particular modulation off a signal incident from a selected direction.
REFERENCES:
patent: 3441900 (1969-04-01), Ulstad et al.
patent: 3922685 (1975-11-01), Opas
patent: 4060809 (1977-11-01), Baghdady
patent: 4088955 (1978-05-01), Baghdady
patent: 4106023 (1978-08-01), Baghdady
patent: 4123759 (1978-10-01), Hines et al.
patent: 4203113 (1980-05-01), Baghdady
patent: 4328591 (1982-05-01), Baghdady
Introduction to Communication Systems, Stremler, pp. 244-246, 1977.
Electrical Engineers'Handbook-"Electric Communication and Electronics", (Fourth Edition), pp. 6-72 through 6-75.
Feeding and Phasing Systems, "Beam Steering of Planar Phased-Arrays" by T. C. Cheston, pp. 219-221.
Proceedings of the IEEE, vol. 56, No. 11, Nov. 1968, "Phased-Array Beam Steering by Multiplex Sampling", by Major A. Johnson, pp. 247-257.
"Properties of Phased Arrays", by Wilhelm H. Von Aulock, pp. 37-49.
The Bell System Technical Journal, vol. XLVI, No. 7, Sep. 1967, "Some Properties and Limitations of Electronically Steerable Phased Array Antennas", by D. Varon and G. I. Zysman, pp. 163-188.
Proceedings of the IEEE, vol. 56, No. 11, Nov. 1968, "A Generalized Approach to the Analysis of Infinite Planar Array Antennas", by Bliss L. Diamond, pp. 69-83.
Cain David
Tarcza Thomas H.
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