허니콤 코어에 적용된 비발디 안테나의 방사 특성 분석
Radiation Characteristic Analysis of Vivaldi Antenna with Honeycomb Core
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초록
무선 기술의 발전으로 많은 시스템이 개발되었으며, 항공기에 이러한 시스템을 효과적으로 적용하기 위해 다양한 형태의 구조 안테나가 연구되어 왔다. 현재까지 대다수의 구조 안테나 연구는 패치 안테나를 중심으로 이루어졌으나, 패치 안테나는 좁은 주파수 대역과 낮은 지향성의 단점을 가지고 있다. 반면, 최근 무선 분야에서 널리 사용되는 비발디 안테나는 넓은 주파수 대역과 우수한 지향성을 갖고 있지만, 방사 방향의 제약으로 인해 항공기 구조에 효과적으로 적용하는 데 어려움이 있었다. 본 연구에서는 비발디 안테나를 항공기 구조에 적용하기 위해 허니콤의 구조에 비발디 안테나를 적용하여 방사 방향의 문제를 해결하고자 하였고, 시뮬레이션을 통해 허니콤 구조가 안테나에 주는 영향을 분석하여 허니콤 비발디 안테나의 가능성을 검증하였다.
Abstract
Numerous studies have explored structural antennas for integrating advanced wireless systems into aircraft without altering their external form. However, most of the research on structural antennas uses patch antennas, characterized by limitations such as narrow frequency bands and low directivity. In contrast, the Vivaldi antenna, widely used in the wireless applications, has the advantages of a wide frequency band and directivity. Nevertheless, it has been difficult to apply it to aircraft due to the direction of radiation. In this study, we try to solve this problem by applying the antenna patch on the honeycomb wall in order to apply the Vivaldi antenna on the aircraft. The effect of the honeycomb structure on the antenna radiation performance was analyzed and the potential of the honeycomb Vivaldi antenna was verified through the simulation.
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