Design of a Highly Durable X-Band Array Antenna for Military Radar Systems

초록

In this paper, we propose a design technique for a highly durable X-band array antenna operating in the harsh maritime environment of military ships. To dramatically enhance the durability of the antenna elements, we employ a highly durable feed-pin structure consisting of a via hole, conducting pads, and an inner pin. The proposed highly durable feed-pin ensures electrical connection even when the antenna layers are damaged by strong external shocks from the vertical and horizontal directions. To verify the durability of the antenna, we performed 45 experiments, applying constant shocks to the antenna elements from the vertical and horizontal directions. Upon the application of shocks from the vertical and horizontal directions, the average bandwidth reduction rates of the antenna without a highly durable feed-pin are 51.9% and 47.7%, respectively, while the antenna equipped with the highly durable feed-pin achieved average bandwidth reduction rates of 11.3% and 14.5%, respectively, under the same conditions. These results demonstrate that the proposed antenna with a highly durable feed-pin is more resistant to external shocks than conventional antennas.

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