A Phase Correction Method in G.O. Designed Dielectric Lens Horn Antenna
نویسندگان
چکیده
1. Introduction TM01 mode horns were mainly employed as a reflector antenna feeds so as to achieve omni-directional coverage around the vertical axis[1][2]. When a shaped beam was designed in the vertical plane, low sidelobe characteristics became important[2]. A dielectric lens horn was introduced. In this paper, accurate radiation characteristics are calculated through FDTD analyses. As for a phase distribution designing, a G.O.(geometrical optics) design is shown insufficient. A method of correcting a lens surface is developed. Then, validity of the method is ensured through FDTD analyses.
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