A Gain Stage increases signal level for further processing. Often, it is used to raise the output level of one component to a sufficient level to drive the following component adequately.
Typically, a gain stage is created by conjugately matching the active component, i.e. both input and output are matched for minimum reflection. A common technique to conjugately match over a wide frequency range is to use a combination series and shunt resistive feedback. The trade-off in this approach is to reduce efficiency and gain and increase noise figure, in order to improve bandwidth and match, increase stability, and generally make the amplifier easier to use.
Agilent Technologies Products for Gain Stage Applications
- Discrete Devices:
- Bipolar Transistors as Gain Stages
- Gain comparison for Bipolar Transistors
- GaAs FETs as Gain Stages
- Gain comparison for GaAs FETs
- Integrated Circuits:
- ICs for RF/uW Gain Stage Amplifiers
- Gain comparison - RF/uW ICs
- ICs for millimeter wave Receivers, Direct Tansmitters, or Upconverting Transmitters
- Gain comparison - mmw ICs