Broad band dipole antenna

Details Broad band dipole antenna Broad band dipole antenna

1976-12-16

1978-11-14

Smith, Alfred E.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343722, 343826, 343831, 343701, H01Q 928, H01Q 100, H01Q 126, H01Q 930

Patent

active

041258401

ABSTRACT:
A dipole antenna consisting of a number of sub-elements, each sub-element comprising a plurality of thin electric conductors or strips of wires arranged on the surface of an insulating cylinder. The conductors in each sub-element have the same length and are distributed around the circumference of the cylinder, so that each such sub-element forms a so-called "thick" dipole element. The lengths of the conductors in different sub-elements are different, so that the sub-elements together will cover a broad frequency band. At least each conductor in the group having the longest conductors are provided with inductive reactances, to prevent excitation of said longer conductors in higher modes at resonance frequencies of the shorter conductors.

REFERENCES:
patent: 2267889 (1941-12-01), Aubert
patent: 2282292 (1942-05-01), Amy et al.
patent: 2578973 (1951-12-01), Hills
The A.R.R.L. Antenna Book, Newington, Conn., The American Radio Relay League, Inc., 1970, pp. 192-195.

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