1. Magic-T 멀티 포트 급전을 이용한 Ku-Band 파도 탐지 레이다용 4×4 빔 분할 패치 안테나의 설계.
- Author
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이승우, 민경식, and 여유석
- Subjects
REFLECTANCE ,ANTENNAS (Electronics) ,ANTENNA design ,RADAR - Abstract
This study presents the design of a beam-splitting antenna using a magic-T feeding structure for wave detection radar systems. The proposed antenna demonstrates a technique for forming three different beams feeding at the three ports using a single-layer substrate. The strong coupling that occurs between the three ports is owing to the use of a single-layer substrate. An optimal arrangement of the slot lines located on the ground plane was designed to address this issue, achieving excellent isolation with values below -20 dB. The measured reflection and isolation coefficients agreed well with the simulation results, achieving reasonable results below -20 dB. The three expected beam pattern types were implemented, and the measured beam characteristics matched well with the simulated patterns. The two beams fed by port 1 exhibited a peak gain of 10.90 dBi, whereas the four beams fed by port 2 exhibited approximately 6.11 dBi. The single beam fed by port 3 exhibited a peak gain of 11.04 dBi. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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