Abstract:Analytical expression of the characteristics for wide-angle planar sectorial antennas on a substrate is derived using the mode-expansion method, where higher-order modes for the ϕ orientation are included. With only eigenfunctions for θ, the mode expansion coefficients and input impedances are numerically estimated, and the broadband characteristics are shown to be realized for wide-angle antennas. Planar sectorial antennas with varied angles were fabricated on a FR-4 substrate, and the measured input impedanc… Show more
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