A 5-GHz, variable gain, SiGe low noise amplifier

  title={A 5-GHz, variable gain, SiGe low noise amplifier},
  author={Fotis Plessas and Grigorios Kalivas},
  journal={2004 24th International Conference on Microelectronics (IEEE Cat. No.04TH8716)},
  pages={609-612 vol.2}
A bipolar low noise amplifier (LNA) is described in this work. The IC contains the LNA core, an externally programmed bias network, a voltage divider, an LC tank and inductors to set the input impedance. The externally programmed bias network allows the user to select the bias current in an adaptive manner, depending upon the requirements of the individual system. (Low NF, high gain, low consumption etc). The chip can be powered down by sending an appropriate bit stream to the bias network. The… CONTINUE READING
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