Group Delay Equalized UWB InGaP/GaAs HBT MMIC Amplifier Using Negative Group Delay Circuits

@article{Ahn2009GroupDE,
  title={Group Delay Equalized UWB InGaP/GaAs HBT MMIC Amplifier Using Negative Group Delay Circuits},
  author={Kyoung-Pyo Ahn and Ryo Ishikawa and Kazuhiko Honjo},
  journal={IEEE Transactions on Microwave Theory and Techniques},
  year={2009},
  volume={57},
  pages={2139-2147}
}
A negative group delay (NGD) circuit has been employed to equalize a group delay variation in a broadband ultra-wideband (UWB) InGaP/GaAs heterojunction bipolar transistor (HBT) monolithic microwave integrated circuit (MMIC) amplifier. Using the NGD circuit, a part of a salient group delay characteristic in the operation band of broadband amplifiers can be suppressed without an increase of the entire group delay. The MMIC amplifier has a steep group delay increase in the lower frequency region… CONTINUE READING
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