RF engineering tools
18 tools Free to use
Convert units, plan a link, or design a matching network. Find the calculation you need, with its equations and assumptions close at hand.
All 18 tools
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Units & frequency
2 toolsPropagation & links
4 tools- Friis transmissionEstimate received power for a free-space link with antenna gains and explicit losses.
- Free-space path lossCalculate free-space path loss from frequency and distance between isotropic reference antennas.
- Link budgetAdd transmitter power, gains and losses to calculate received power and link margin.
- EIRP & ERPCalculate EIRP and ERP from transmitter power, antenna gain and feed and mismatch losses.
Noise & signal chains
2 toolsImpedance & matching
4 tools- VSWR, return loss & reflectionConvert impedance, reflection coefficient, VSWR, return loss and mismatch loss at a stated reference impedance.
- Smith chart explorerExplore how impedance and admittance map to reflection coefficient on a Smith chart.
- Impedance matching designerDesign ideal L networks or quarter-wave transformers for a chosen load and design frequency.
- Attenuator designerDesign matched T or π resistor pads and evaluate rounded values and power dissipation.
Transmission lines & PCB
5 tools- Transmission lineCalculate input impedance, electrical length, delay and standing waves for a uniform transmission line.
- Coax cableCalculate cable loss, delivered power, delay and phase using supplied attenuation and velocity factor.
- MicrostripAnalyze trace impedance or find the width for a target impedance using a quasi-static model.
- CPW & CPWGFind trace width or impedance with equal side slots and optional grounded backing.
- StriplineDesign a centered trace between two ground planes in a uniform dielectric.