Circular polarization antenna

Details Circular polarization antenna Circular polarization antenna

1983-11-09

1985-09-24

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343700MS, H01Q 2106, H01Q 2124, H04B 710

Patent

active

045435790

ABSTRACT:
A circular polarization antenna having wide-band circular polarization characteristics and impedance characteristics is accomplished by feedng N-antenna elements which are shifted at an interval of .pi./N rad. with respect to the boresight direction with differential phase shift of an interval of .pi./N rad. corresponding to the angular orientation of the antenna elements so as to obtain perfect circular polarization with respect to the boresight direction. This antenna construction can be applied to circular polarization antennas of various types, thereby allowing a wide-band circular polarization array antenna or an array antenna for dual orthogonal circular polarizations having high polarization discrimination to be achieved.

REFERENCES:
patent: 4318107 (1982-03-01), Pierrot et al.
patent: 4345255 (1982-08-01), Komuro et al.

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