A Low-Profile DielectricWaveguide Altimeter Antenna

Haykir Y., Dagdeviren B., Korkmaz A. D., DEMİR Ş.

33rd General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2020, Rome, Italy, 29 August - 05 September 2020 identifier identifier


© 2020 URSI.In this paper, design and implementation of a compact, low-profile and low-cost altimeter antenna is presented. A top-open dielectric waveguide is utilized to obtain a radiation pattern that illuminates from 20 to 70 degrees on the elevation plane. The proposed antenna pair can be used efficiently as a radar altimeter antenna in the course of landing. The antenna can cope with high skin temperatures, especially in supersonic flights because a high-temperature resistant dielectric material is used. Satisfactory results are obtained from EM simulations and antenna measurements.