지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
A planar, light-weight, and low-cost notch filter structure is required for the KSTAR ECEI (Electron Cyclotron Emission Imaging) system to protect the mixer arrays from spurious plasma heating power. Without protection, this heating power can significantly degrade or damage the performance of the mixer array. To protect mixer arrays, a frequency selective surface (FSS) structure is the suitable choice as a notch filter to reject the spurious heating power. The FSS notch filter should be located between the lenses of the ECEI system. This paper presents a 170 GHz FSS notch filter for the KSTAR ECEI sensor application. The design of such an FSS notch filter is based on the single-sided square loop geometry, because that makes it relatively insensitive to the incident angle of incoming wave. The FSS notch filter exhibits high notch rejection with low pass-band insertion loss over a wide range of incident angles. This paper also reviews the simulated and measured results. The proposed FSS notch filter might be implemented in other millimeter-wave plasma devices.
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참고문헌 (7)
참고문헌 신청
Ben A. Munk / 2000 / Frequency Selective Surfaces Theory and Design / John Wiley & Sons
H. J. van der Meiden / 1999 / Application of band-stop filters for the 30-200 GHz range in oversized microwave systems / Rev. Sci. Instrum 70(6):2861~2863
H. Park / 2004 / Simultaneous microwave imaging system for density and temperature fluctuation measurements on TEXTOR(invited) / Rev. Sci. Instrum 75(10):3787~3792
Z. Shen / 2006 / Frequency selective surface notch filter for use in a millimeter wave imaging system / IEEE Antenna Propagation Society Int. Symp :4191~4194
H. K. Park / 2010 / Microwave imaging reflectometry studies for turbulence diagnostics on KSTAR / Proc. of the 18th Topical Conference on High-Temperature Plasma Diagnostics 81:1~3
H. J. van der Meiden / 1999 / Application of band-stop filters for the 30-200 GHz range in oversized microwave systems / Rev. Sci. Instrum 70(6):2861~2863
H. Park / 2004 / Simultaneous microwave imaging system for density and temperature fluctuation measurements on TEXTOR(invited) / Rev. Sci. Instrum 75(10):3787~3792
Z. Shen / 2006 / Frequency selective surface notch filter for use in a millimeter wave imaging system / IEEE Antenna Propagation Society Int. Symp :4191~4194
H. K. Park / 2010 / Microwave imaging reflectometry studies for turbulence diagnostics on KSTAR / Proc. of the 18th Topical Conference on High-Temperature Plasma Diagnostics 81:1~3
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