한국군사과학기술학회지 (Journal of the Korea Institute of Military Science and Technology)

  • 제24권6호
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  • Pages.610-618
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  • 2021
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  • 1598-9127(pISSN)
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  • 2636-0640(eISSN)
한국군사과학기술학회 (The Korea Institute of Military Science and Technology)
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X-대역 LFM 신호생성을 위한 진행파형 전광변조기의 설계 및 제작

Design and Manufacture of Traveling-wave Electro-optic Modulator for X-band LFM Signal Generation

  • 이민우 (국방과학연구소 국방첨단과학기술연구원) ;
  • 류성준 (국방과학연구소 국방첨단과학기술연구원) ;
  • 배영석 (국방과학연구소 국방첨단과학기술연구원) ;
  • 장성훈 (국방과학연구소 국방첨단과학기술연구원) ;
  • 유준형 (국방과학연구소 국방첨단과학기술연구원) ;
  • 신진우 (국방과학연구소 국방첨단과학기술연구원)
  • Yi, Minwoo (Advanced Defense Science and Technology Research Institute, Agency for Defense Development) ;
  • Yoo, Sungjun (Advanced Defense Science and Technology Research Institute, Agency for Defense Development) ;
  • Bae, Youngseok (Advanced Defense Science and Technology Research Institute, Agency for Defense Development) ;
  • Jang, Sunghoon (Advanced Defense Science and Technology Research Institute, Agency for Defense Development) ;
  • Ryoo, Joonhyung (Advanced Defense Science and Technology Research Institute, Agency for Defense Development) ;
  • Shin, Jinwoo (Advanced Defense Science and Technology Research Institute, Agency for Defense Development)
  • 투고 : 2021.05.12
  • 심사 : 2021.10.08
  • 발행 : 2021.12.05
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초록

In this paper, a photonic-based microwave system technology is described, and a traveling-wave electro-optic modulator is designed and manufactured as a key component. The fabricated modulator is composed of a metal diffusion waveguide for optical transmission and a planar waveguide electrode on lithium niobate substrate for microwave transmission. The electro-optic response bandwidth of I and Q channels in a fabricated dual parallel Mach-Zehnder modulator were measured for 27.67 and 28.11 GHz, respectively. Photonic four times up-converted X-band frequency and linear frequency modulated signal were confirmed using the fabricated electro-optic modulator by S-band input signal. The confirmed broadband signal can be applied to a microwave system for surveillance and high-resolution ISAR imaging.

키워드

참고문헌

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