4×4 배열 합성 혼 안테나 및 고출력 마그네트론에 의한 방사전력 측정
Design of 4×4 Array Synthesis Horn Antenna and Radiated Power Measurement by Magnetron
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초록
본 논문에서는 배열 합성 혼 안테나를 설계하고 고출력 마그네트론을 연결하여 방사전력을 측정하였다. 제안된 안테나는 4×4 배열 합성 혼 안테나 특성을 바탕으로 후방 방사를 억제시키기 위해 합성 혼 개구면 상, 하단에 2단 단락구조물을 부착하여 빔폭 E-plane 8.86°, H-plane 7.35°, 전후방비 39.7 dB를 얻었다. 또한 배열된 마그네트론을 이용한 배열 혼안테나의 방사전력을 측정하기 위하여 도파관 어댑터를 설계하여 마그네트론과 혼 안테나를 연결 시켰고 고출력의 파워를 측정하기 위해 중간단에 에어갭을 넣은 마이크로스트립 라인 커플러를 설계하였다. 4×4 배열 합성 혼 안테나의 중앙에 4개의 마그네트론을 연결하여 측정한 결과 평균 방사 출력 0.063 W를 얻었다.
Abstract
In this paper, the array synthesis horn antenna was designed and measured a radiation power after connecting magnetron. The proposed antenna was designed on the basis of the 4×4 array synthesis horn antenna characteristics. For suppressing a back-lobe, 2 step short-stub structures were attached to synthesis horn aperture upper and lower. The designed antenna has FBR(Front to Back Ratio) of 39.7 dB. HPBW(Half Power Beam Width) of the E-plane and the H-plane are 8.86°and 7.35° each in the measurement. For measuring a radiation power of array antenna that use a magnetron, the waveguide adaptor was designed and connected magnetron with horn antenna. Also, microstrip line coupler that replace a dielectric material with an air gap was designed for measuring a high power. As a result, average radiation output power of the 4×4 array synthesis horn antenna that connect a four magnetrons had a 0.063W.
참고문헌 (5)
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