Antenna element having non-feed conductive loop surrounding radi

Details Antenna element having non-feed conductive loop surrounding radi Antenna element having non-feed conductive loop surrounding radi

1982-09-07

1985-05-07

Lieberman, Eli

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343840, 343841, H01Q 152, H01Q 1919

Patent

active

045161330

ABSTRACT:
The directivity as well as the gain of an antenna element associated with a finite length reflector, which includes a feed antenna such as a dipole antenna and a reflector having a finite length of several wavelengths or less, are improved by disposing a non-feed loop element having a peripheral length of about 2 wavelengths along a common imaginary plane with the feed antenna so as to surround the feed antenna. Preferably, the non-feed loop element is disposed in parallel to the reflector, and more preferably it is disposed nearly symmetrically with respect to the center of the feed antenna.

REFERENCES:
patent: 2556046 (1951-06-01), Simpson
patent: 2657313 (1953-10-01), Antony
patent: 2998605 (1961-08-01), Orlando
patent: 3605104 (1971-09-01), Weston et al.
patent: 3887926 (1975-06-01), Schwartz et al.
patent: 4240080 (1980-12-01), Woodward
"Dipole-Disk Antenna with Beam-Forming Ring" By Per-Simon Kildal and Svein A. Skyttemyr, pp. 529-531, of IEEE Transactions on Antennas and Propagation, vol. AP-30, No. 4, Jul. 1982.

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