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

  • 제13권6호
  • /
  • Pages.1071-1079
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  • 2010
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  • 1598-9127(pISSN)
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  • 2636-0640(eISSN)
한국군사과학기술학회 (The Korea Institute of Military Science and Technology)
권호 표지

S-대역 고효율 Pallet 전력증폭기 모듈 설계

Design of an High Efficiency Pallet Power Amplifier Module

  • 투고 : 2010.07.09
  • 심사 : 2010.10.01
  • 발행 : 2010.12.05
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초록

This paper describes the design and fabrication of a high-efficiency GaN HEMT(Gallium Nitride High-electron Mobility Transistor) Pallet power amplifier module for S-band phased array radar applications. Pallet amplifier module has a series 2-cascaded power amplifier and the final amplification-stage consists of balanced GaN HEMT transistor. In order to achieve high efficiency characteristic of pallet power amplifier module, all amplifiers are designed to the switching-mode amplifier. We performed with various PRF(Pulse Repetition Frequency) of 1, 10, 100 and 1000Hz at a fixed pulse width of $100{\mu}s$. In the experimental results, the output power, gain, and drain efficiency(${\eta}_{total}$) of the Pallet power amplifier module are 300W, 33dB, and 51% at saturated output power of 2.9GHz, respectively.

키워드

참고문헌

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