Multiple beam antenna system for simultaneously receiving multip

Details Multiple beam antenna system for simultaneously receiving multip Multiple beam antenna system for simultaneously receiving multip

1995-08-25

1998-11-03

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343895, 343853, H01Q 1906

Patent

active

058315829

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: 3795005 (1974-02-01), Monser 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.
patent: 5495258 (1996-02-01), Muhlhauser et al.
"Broadband Quasi-Taper Helical Antennas" By J.L. Wong and H. E. King, 1979.
"Grating Lobe Control in Limited Scan Arrays" By Mailloux et al, 1979.
"Short Helical Antenna Array Fed From a Waveguide" By Nakand et al, 1984.
"Radiation From a Sheath Helix Excited By a Circular Waveguide: A Wiener-Hopf Analysis" By Fernandes et al, 1990.
"Low-Profile Helical Array Antenna Fed From a Radial Waveguide" By Nakand et al, 1992.
"Wave Propagation on Helical Antennas" By Cha, 1972.
"Review of Radio Frequency Beam Foaming Technique For Scanned and Multiple Beam Antennas" By Hall, 1990.
"Design Trades For Rotman Lenses" By Hansen, 1991.
"Design of Compact Low-Loss Rotman Lenses" By Rogers, 1987.
"Focusing Characteristics of Symmetrically Configured Bootlace Lenses" By Shelton, 1978.
"A Microstrip Multiple Beam Forming Lens" By Fong et al, 1983.
"Design Considerations For Ruze and Rotman Lenses" By Smith, 1982.
"Amplitude Performance of Ruze and Rotman Lenses" By Smith et al, 1983.
"Microstrip Port Design and Sidewall Absorption For Printed Rotman Lenses" By Musa et al, 1989.
"Wide-Angle Microwave Lens For Line Source Applications" By Rotman et al, 1962.
"Short Helical Antenna Array Fed From a Waveguide" By Nakano et al, 1983.
"A Study of the Sheath Helix with a Conducting Core and its Application to the Helical Antenna", By Neureuther, 1967.
"Wave Propagation on Helices" By Mittra, 1963.
"Array of Helices Coupled a Waveguide" By Nakano et al.
"Array Antenna Composed of 4 Short Axial-Mode Helical Antenna" By Shiokawa.

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