JSTS:Journal of Semiconductor Technology and Science

The Institute of Electronics and Information Engineers (대한전자공학회)
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Design of Broad Band Amplifier Using Feedback Technique

  • Kang, Tae-Shin (MINT (Millimeter-wave INnovation Technology Research Center), Dongguk University) ;
  • Rhee, Jin-Koo (MINT (Millimeter-wave INnovation Technology Research Center), Dongguk University)
  • Published : 2003.03.01
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Abstract

In this paper, an MMIC broadband amplifier for wireless communication systems has been developed by using an active feedback method. This active feedback operates at much higher frequencies than a method by a spiral inductor feedback and its size is independent of the inductance value. The MMIC broadband amplifier was designed using a $0.5{\;}{\mutextrm{m}}$ MESFET library. The fabricated chip area was $1.4{\;}mm{\;}{\times}{\;}1.4{\;}mm. Measurement showed a gain of 18 dB with a gain flatness of ${\pm}3$ dB in a 1.5 GHz~3.5 GHz band. The maximum output power and the minimum noise figure were 14 dBm and 2.5 dB in the same band, respectively.

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References

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