RF FORGE
RF Engineering Calculator
A practical collection of RF engineering calculators for link budgets, antenna measurements, system noise analysis, and RCS reference values.
Friis Link Budget
Estimate received power, path loss, antenna gains, and link margin for free-space RF links.
Open →Reflector Antenna
Calculate reflector antenna efficiency, gain, beamwidth, aperture area, and related RF reference values.
Open →System Noise Figure
Analyze cascaded gain, noise factor, equivalent noise temperature, and total receiver noise figure across RF chain stages.
Open →Antenna Near-field Measurement
Plan near-field scan size, sampling interval, probe spacing, and measurement grid requirements for antenna measurement setups.
Open →Antenna Far-field Measurement
Check Fraunhofer distance, allowable AUT size, and measurement-distance margin for far-field antenna testing.
Open →Reference Target RCS
Compute reference RCS values for spheres, trihedral corner reflectors, and flat plates in dBsm.
Open →Radar Range Equation
Estimate radar received power, receiver noise, SNR, and maximum detection range using the monostatic radar range equation.
Open →Receiver Sensitivity / MDS
Calculate receiver noise floor and minimum detectable signal from bandwidth, noise figure, required SNR, system loss, and temperature.
Open →About
RF Engineering Calculator
Created for practical RF engineering workflows, including quick design checks, measurement planning, and reference calculations.
Created by Dongjin Lim.
Version 1.3