Resistive attenuator
Attenuator network resistances for equal input and output impedances.
Inputs
Calculations run in your browser. Your input values are not submitted or saved.
Results
- Each series arm
- 16.6139425 Ω
- Centre shunt resistance
- 66.9310406 Ω
Source and load must match Z. This calculation does not determine power ratings or parasitics. Reflection mode requires a suitable hybrid or circulator.
Formula & guidance
K = 10^(dB/20); T: Rs=Z(K−1)/(K+1), Rp=2ZK/(K²−1)
Source and load must match Z. This calculation does not determine power ratings or parasitics. Reflection mode requires a suitable hybrid or circulator.
Change the example inputs and check each field’s units. Use equipment datasheets and applicable project standards for final decisions. Results do not establish Canadian electrical-code compliance or certify a design.