Common Base Amplifier Calculator
Calculate CB amplifier voltage gain, impedance, and frequency response
Circuit Parameters
Common Base Advantages
- • Excellent high frequency response
- • No Miller effect (base grounded)
- • Good for RF/microwave applications
- • Low input impedance (50Ω match)
- • No phase inversion
- • Used in cascode configurations
Gain Characteristics
Voltage Gain (Av)245.9
Gain (dB)47.8 dB
Current Gain (α)0.990
Power Gain (dB)23.9 dB
Phase Shift0°
Impedance & Frequency
Input Impedance (Zin)13.0 Ω
Output Impedance (Zout)4.70 kΩ
Transconductance (gm)76.92 mS
Alpha (α)0.9901
Bandwidth (fH)300 MHz