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Found 20 calculators
RF wavelength
Calculates wavelength from frequency and velocity factor.
Antenna length from wavelength fraction
Calculates 1/4, 1/2 or 5/8 wavelength length from frequency and VF.
Free-space path loss
Calculates wavelength and FSPL in linear scale and dB for a supplied propagation speed.
RF link budget
Sums transmitter power, gains and losses in dB/dBm and calculates link margin.
Friis received power
Calculates received power from transmitted power, linear gains, wavelength and distance.
EIRP
Calculates equivalent isotropic radiated power in dBm from transmitter power, antenna gain and feeder loss.
Antenna effective aperture
Calculates antenna effective aperture from linear gain and wavelength.
Conductor skin depth
Calculates skin depth from frequency, resistivity and relative magnetic permeability.
Coaxial line impedance
Calculates impedance of a homogeneous non-magnetic coaxial line from geometry and dielectric permittivity.
Quarter-wave transformer
Calculates quarter-wave section impedance for real positive source and load impedances.
Simple microstrip impedance
Estimates microstrip impedance from trace width, substrate height and relative permittivity.
Reflection coefficient Γ
Calculates complex reflection coefficient from ZL and Z0 or from short/open-circuit cases.
VSWR from |Γ|
Calculates voltage standing wave ratio for |Γ| ≤ 1.
Return loss from |Γ|
Calculates return loss; for Γ = 0 it returns a structured +∞ dB result.
Mismatch loss from |Γ|
Calculates mismatch loss for |Γ| ≤ 1.
RF power balance
Calculates reflected and delivered power from incident power and |Γ|.
Rectangular waveguide TE10 cutoff
Calculates TE10 cutoff frequency and, above cutoff, guided wavelength.
Transmission-line electrical length
Calculates β and electrical length from physical length, frequency and VF.
Antenna and waveguide suite
Three-tab RF suite for rectangular waveguides, dipoles with link budget, and rectangular patch antennas with visualization and JSON export.
RF transmission line designer
RF line design and analysis for coax, quasi-TEM microstrip, RLGC propagation, load transformation, quarter-wave matching and frequency sweep.