DocumentCode :
1000490
Title :
Resonances in circular arrays with dielectric sheet covers
Author :
Hessel, Alexander ; Sureau, Jean-claude
Author_Institution :
Polytechnic Institute of Brooklyn, Farmingdale, NY, USA
Volume :
21
Issue :
2
fYear :
1973
fDate :
3/1/1973 12:00:00 AM
Firstpage :
159
Lastpage :
164
Abstract :
The effect of a dielectric sheet cover on the 
-plane realized element gain pattern of a circular array of axial thin slits is considered. In similar planar arrays, such patterns are characterized by nulls which appear even for spacings less than 
. This phenomenon has previously been linked with the influence of a leaky wave on the near field. It is shown in this paper that, in circular arrays, similar dips occur accompanied by pattern distortions.
-plane realized element gain pattern of a circular array of axial thin slits is considered. In similar planar arrays, such patterns are characterized by nulls which appear even for spacings less than . This phenomenon has previously been linked with the influence of a leaky wave on the near field. It is shown in this paper that, in circular arrays, similar dips occur accompanied by pattern distortions.Keywords :
Circular arrays; Dielectric-covered antennas; Slot arrays; Dielectrics; Diffraction; Engine cylinders; Feeds; Helium; Phased arrays; Planar arrays; Resonance; Surface waves; Voltage;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1973.1140471
Filename :
1140471
Link To Document :
