Directional loop antenna with plural dielectric coverings

Details Directional loop antenna with plural dielectric coverings Directional loop antenna with plural dielectric coverings

1975-06-06

1976-11-23

Smith, Alfred E.

Communications: radio wave antennas

Antennas

High frequency type loops

343802, 343804, H01Q 144, H01Q 700

Patent

active

039939987

ABSTRACT:
A directional loop antenna, particularly for television signals, comprising a conductive member shaped into a folded dipole configuration is disclosed. Covering the conductive member is a plastic material which may comprise two coaxial coatings of different dielectric constants. The folded dipole legs are formed into a generally circular configuration with the folded ends brought together and overlapped to form a pair of loops. The two loops thus formed lie in planes which intersect each other at a point beyond the forward side of the antenna. At the opposite side of the loops, the two ends of the conductive member emerge to form terminals for connection to a transmission line. At this side of the antenna the loops are spaced farther apart than at the side where the folded dipole ends overlap. This construction results in a highly directional antenna capable of wide frequency band reception with a good match to a 300 ohm transmission line.

REFERENCES:
patent: 2472106 (1949-06-01), Hansen
patent: 3582951 (1971-06-01), Altmayer

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