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Network analysis of millimeter-wave omnidirectional periodic dielectric rod antenna with arbitrary grating profile

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2 Author(s)
Qilin Xu ; Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China ; Shanjia Xu

The radiation characteristics of the omnidirectional periodic circular dielectric rod leaky-wave antenna with arbitrary grating profile are investigated by the network method combining with staircase approximation. In the analysis, the arbitrary grating profiles are transformed to a multilayer rectangular periodic structure, which is represented by a radial transmission line with a series current source. As a result, the calculations are greatly simplified and the effects of the grating profile on the performance of the grating antenna are systematically studied in a very efficient way. Some useful guidelines for the design and fabrication of the omnidirectional dielectric grating antenna are thereby suggested.

Published in:

Antennas and Propagation Society International Symposium, 2005 IEEE  (Volume:1A )

Date of Conference:

3-8 July 2005