Bộ lọc thông dải có thể tùy chỉnh sử dụng cấu trúc cộng hưởng hai vòng hở ứng dụng trong hệ thống phát hiện và theo dõi tần số
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#Tunable filters; Double split-ring resonator; Frequency detection.Tài liệu tham khảo
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