Summary
International Symposium on Antennas and Propagation
2006
Session Number:3D2a
Session:
Number:3D2a-1
Tilted Beam Characteristics of a Cylindrical Dielectric Rod Periodically Covered with Metals
Junji YAMAUCHI, Issey CHIGUSA, Hisamatsu NAKANO,
pp.1-5
Publication Date:2006/11/2
Online ISSN:2188-5079
Summary:
A cylindrical dielectric rod antenna periodically covered with metals is analyzed using the body-of-revolution finitedifference time-domain method. The tilted beam can be formed by adjusting the lengths of the metal and the bare dielectric. To decrease the sidelobes caused when the beam is tilted toward the horizontal direction, a small metal reflector is attached to the top of the rod. Calculation shows that the metal reflector serves to decrease the sidelobes, while maintaining a short rod length.