Multiple beam antenna system for simultaneously receiving multip

Communications: radio wave antennas – Antennas – With spaced or external radio wave refractor

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343895, 343853, H01Q 1906

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054952581

ABSTRACT:
A multiple beam array antenna system including a first group of right-handed circularly polarized subarrays and a second group of left-handed circularly polarized subarrays. Combined signals from the right-handed subarrays are output via low noise amplifiers to a first electromagnetic lens while the outputs of the left-handed circularly polarized subarrays are sent via low noise amplifiers to a second steering electromagnetic lens. A satellite selection matrix output block allows a user to tap into signals from right-handed circularly polarized satellites, left-handed circularly polarized satellites, and linearly polarized satellites. A plurality of satellites (e.g. right-handed satellite "A" and linearly polarized satellite "B") may be accessed simultaneously thus allowing the user to utilize both signals at the same time.

REFERENCES:
patent: 2847672 (1958-08-01), Giffin et al.
patent: 2863148 (1958-12-01), Gammon et al.
patent: 2953781 (1960-09-01), Donnellan et al.
patent: 2977594 (1961-03-01), Marston et al.
patent: 2982959 (1961-05-01), Hanneken
patent: 3017633 (1962-01-01), Marston et al.
patent: 3135960 (1964-06-01), Kaiser, Jr.
patent: 3170158 (1965-02-01), Rotman
patent: 3509572 (1970-04-01), Barbano
patent: 3623118 (1971-11-01), Monser et al.
patent: 3718932 (1973-02-01), Ikrath et al.
patent: 4123759 (1978-10-01), Hines et al.
patent: 4315266 (1982-02-01), Ellis, Jr.
patent: 4400703 (1983-08-01), Shiokawa et al.
patent: 4427984 (1984-01-01), Anderson
patent: 4494117 (1985-01-01), Coleman
patent: 4680591 (1987-07-01), Axford et al.
patent: 4785302 (1988-11-01), Ma et al.
patent: 4791428 (1988-12-01), Anderson
patent: 4845507 (1989-07-01), Archer et al.
patent: 5041842 (1991-08-01), Blaese
patent: 5053786 (1991-10-01), Silverman et al.
patent: 5061943 (1991-10-01), Rammos
patent: 5117240 (1992-05-01), Anderson et al.
patent: 5146234 (1992-09-01), Lalezari
patent: 5227807 (1993-07-01), Bohlman et al.
patent: 5243358 (1993-09-01), Sanford et al.
patent: 5255004 (1993-10-01), Berkowitz et al.
patent: 5258771 (1993-11-01), Praba
patent: 5345248 (1994-09-01), Hwang et al.
Broadband Quasi-Taper Helical Antennas by J. L. Wong and H. E. King, IEEE, Jan. 1979, pp. 72-78.
Grating Lobe Control in Limited Scan Arrays by Mailloux et al, IEEE, Jan. 1979, pp. 79-85.
Short Helical Antenna Array Fed from a Waveguide by Nakano et al, IEEE, Aug. 1984, pp. 836-840.
Radiation from a Sheath Helix Excited by a Circular Waveguide: A Wiener-Hopf Analysis by Fernandes et al, Oct. 1990.
Low-Profile Helical Array Antenna Fed from a Radial Waveguide by Nakano, et al, IEEE, Mar. 1992, pp. 279-282.
Wave Propagation on Helical Antennas by Cha, IEEE, Sep. 1972, pp. 557-560.
A Study of the Sheath Helix with a Conducting Core and its Application to the Helical Antenna, by Neureuther, IEEE Mar. 1967, pp. 204-209.
Wave Propagation on Helices by Mittra, IEEE, Sep. 1963, pp. 585-586.
Review of Radio Frequency Beam Forming Techniques for Scanned and Multiple Beam Antennas by Hall, IEEE Oct. 1990, pp. 293-304.
Design Trades for Rotman Lenses by Hansen, IEEE Apr. 1991, pp. 464-472.
Design of Compact Low-Loss Rotman Lenses by Rogers, IEEE, Oct. 1987, pp. 448-456.
Focusing Characteristics of Symmetrically Configured Bootlace Lenses by Shelton, IEEE, Jul. 1978.
Design Considerations for Ruze and Rotman Lenses by Smith, The Radio and Electronic Engineer vol. 52, No. 4, pp. 181-187, Apr. 1982.
Amplitude Performance of Ruze and Rotman Lenses by Smith et al, The Radio and Electronic Engineer, vol. 53, No. 9, pp. 329-337, Sep. 1983.
Microstrip Port Design and Sidewall Absorption for Printed Rotman Lenses by Musa et al, IEEE, Feb. 1989, pp. 53-58.
Wide-Angle Microwave Lens for Line Source Applications by Rotman et al, IEEE, Nov. 1962, pp. 623-632.
Short Helical Antenna Array Fed from a Waveguide by Nakano et al, IEEE, Nov. 1983, pp. 405-408.

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