Mobile mesh antenna

Communications: radio wave antennas – Antennas – Balanced doublet - centerfed

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Details

343713, 343872, 343897, H01Q 928

Patent

active

049757130

ABSTRACT:
A panel shaped mesh-type structure is provided as one of the conductive or radiating members of a radio frequency mobile antenna fed by a coaxial cable. The mesh-type structure appears to decouple antenna currents in the coaxial cable at short distances, while maintaining performance as a transmitter at long distances. The radiating elements are surrounded by an insulating material which serves as a dielectric, further improving antenna performance and also serving as environmental protection. The radiating elements are made from readily available mesh and sheet stock materials aligned in a generally planar configuration attached to a either the shield or center lead of the coaxial cable. A small section of the central cable conductor is stripped of insulation and shielding, to serve as a miniature loading coil for the first plate-type conductive element. Shielding of the coaxial cable is attached directly to a mesh-type element serving as the counterpoise. The specific geometries tested produce antenna performance generally insensitive to dielectric variations of as much as 25%.

REFERENCES:
patent: 2094168 (1937-09-01), Forbes
patent: 2480155 (1949-08-01), Masters
patent: 2673931 (1954-03-01), Stevens
patent: 2945227 (1960-07-01), Broussaud
patent: 3036302 (1962-05-01), Hudock
patent: 3050730 (1962-08-01), Lamberty
patent: 3268897 (1966-08-01), Link
patent: 3977004 (1976-08-01), Bickel
patent: 4746925 (1988-05-01), Toriyama
"Flat, Flexible TV Antenna Offers High Gain", Electronic Design, No. 6, Mar. 15, 1975, vol. 23, (343-897).
Van Nostrand's Scientific Encyclopedia, Fourth Edition 1968, p. 537.
Standard Handbook for Electrical Engineers, Tenth Edition, 1968, pp. 25-137, by Fink and Carroll.
Transmission Lines Antennas and Wave Guides, First Edition, 1945, pp. 130, 133, 144-149, by King, Mimno and Wing.
"Reference Data for Radio Engineers," Fourth Edition, 1956, pp. 662-665.
"Micro-Strip Antenna's", Second Edition, 1982, p. 27, by Bahl and Bhartia.

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