그림 1. PSO 알고리즘 흐름도 Fig. 1. The flowchart for PSO algorithm.
그림 2. 기존의 적합성 함수 Fig. 2. Conventional fitness function.
그림 3. 제안하는 기울기 기반의 적합성 함수 Fig. 3. Proposed fitness function.
그림 4. 설계한 FSS 형상 및 재원 Fig. 4. The shape of FSS and parameter.
그림 5. FSS 설계절차 흐름도 Fig. 5. The flowchart of the design FSS process.
그림 6. FSS 구조 및 전파특성 비교 Fig. 6. Comparison of FSS structures and wave characteristics.
그림 7. 기울기 기반 적합성 함수 적용한 결과 FSS의 구조 및 전파특성 Fig. 7. The transmission efficiency of FSS using slope-based fitness function.
그림 8. 기존의 적합성 함수를 사용한 두 FSS의 최소 적합성 값 비교 곡선 Fig. 8. Curve of minimum fitness values comparison using conventional fitness function.
표 1. 최소 적합성 값 비교 Table 1. Minimum fitness values comparison.
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