Design of High-Gain Slotted Array Waveguide Antenna of Radar
                        Systems to Prevent Maritime Accidents

Yeoh, You-Seok; Min, Kyeong‐Sik

doi:10.5515/kjkiees.2020.31.12.995

Cited by 2 publications

(1 citation statement)

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“…문제에 대응하기 위해 파도 탐지 레이다를 이용하여 파 고, 파향, 파주기의 파도 데이터를 수집하여 취약 지역에 방어 체계를 구축하는 연구가 활발히 진행되고 있다 [1], [2] . 파도 탐지 레이다로 널리 사용되는 X-band 파도 탐지 레 이다는 회절현상과 협대역폭 특성 때문에 실시간으로 파 도 정보의 빅데이터 신호처리가 어렵다.…”

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Design of a Four-Port Phase Control Antenna for Ku-Band Wave Detection Radar System Using Magic-T Circuit Structure

Yi,

Min,

Yeoh

2024

J. Korean Inst. Electromagn. Eng. Sci.

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This paper proposes a design method for a four-port phase-controlled antenna for wave detection radar systems for preventing coastal erosion and accidents caused by rip current waves. The proposed antenna is a new phase-control technology that implements the magic-T circuit structure, enabling the adjustment of the beam patterns and phases of the patch antenna based on the position of the feeding ports.Utilizing the phase control and high isolation characteristics of the magic-T circuit structure, we designed 2×4 patch array antennas with four ports. The proposed antenna achieved excellent design results with reflection coefficients and isolation between each port measuring below −20 and −30 dB, respectively. Based on phase control using the magic-T circuit structure, the study confirmed that the antenna exhibited excellent characteristics, radiating beam patterns ranging from one to four beams depending on the excitation to each port.

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