Quadruple-delta antenna structure

Communications: radio wave antennas – Antennas – High frequency type loops

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Details

3437925, 343808, 343866, H01Q 1112

Patent

active

059661003

ABSTRACT:
An antenna element is disclosed that is a set of approximately coplanar conductors that form four approximately triangular conductors, each of which has a perimeter of approximately one wavelength. Three parallel conductors are the central part and the two outer parts. Joining these three parallel conductors, there are four diagonal conductors, of approximately equal length, that connect each end of the central parallel conductor to the opposite end of each of the outer parallel conductors. Where these diagonal conductors cross, they do not touch. Compared to previous antennas constructed for the same purposes, antennas constructed with these antenna elements can yield more directivity, particularly in the principal H plane, or more bandwidth. Several applications of such antenna elements in various arrays also are disclosed.

REFERENCES:
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patent: 2537191 (1951-01-01), Moore
patent: 3108280 (1963-10-01), Mayes
patent: 3210767 (1965-10-01), Isbell
patent: 3268899 (1966-08-01), Walden
patent: 3434145 (1969-03-01), Wells
patent: 3618111 (1971-11-01), Vaughan
patent: 3646566 (1972-02-01), Neff
patent: 4745725 (1988-05-01), Onoda
Kraus, John D., "A Small But Effective `Flat Top` Beam," Radio, Mar. 1937, pp. 56-58.
Orr, William I., "Loop Configuration," Radio Handbook, 23rd ed. (Indianapolis: Howard W. Sams & Co., 1987), pp. 22-11/12.
Kraus, John D., "Twin-Three Flat-Top Beam Antenna," Radio, Nov. 1939, pp. 10-14 and pp. 81-83.
Carrel, Robert L., Analysis and Design of The Log-Periodic Dipole Antenna, University of Illinois, Antenna Laboratory Technical Report 52.
Podger, J. S., Analysis Results, Double Delta, (No Date Provided).
Podger, J. S., Analysis Results, Quadruple Delta (No Date Provided).
Sykes, B., "The Skeleton Slot Aerial System," The Short Wave Magazine, Jan. 1955, pp. 594-598.
Davey, W. W., "Try a Bi-Loop Antenna," 73 Magazine, Apr. 1979, p. 58.
Hawker, J. Patrick, "Technical Topics, Double-Delta Aerials for VHF and UHF," Radio Communications, Jun. 1969, p. 396.

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