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A new analysis model of the radial line slot antenna

A radial line slot antenna (RLSA) is a high gain and high efficiency planar antenna. Owing to the fact that thousands of slots are on the surface of the antenna, the simulation data is very large and the time required is longer. Therefore, a sectorial cavity with a periodic boundary condition is used to simulate a sector region of the circular aperture in a CP-RLSA. This analysis provides the basic method for the advanced design of a RLSA.