Closed-form RF calculators for the geometries you use every day.
Twelve calculators covering microstrip, stripline, patch antennas, inverted-F antennas, CPW, GCPW, differential pairs, wavelength, quarter-wave matching, and Smith chart conversions. All calculators include a breakdown of the math steps, along with references for the equations.
Microstrip
Trace impedance and width on a top-layer microstrip.
Stripline
Symmetric inner-layer trace between two ground planes.
Patch antenna
Rectangular microstrip patch dimensions and edge resistance.
Inverted-F antenna
PCB IFA: arm length, feed offset, cutout and ground starting points.
CPW
Coplanar waveguide on a dielectric, no bottom ground.
GCPW
Grounded coplanar waveguide. CPW with a backside ground.
Differential pair
Edge-coupled microstrip differential pair Zdiff.
Embedded microstrip
Microstrip with a cover dielectric (soldermask, prepreg).
Free-space wavelength
Convert frequency to wavelength in vacuum or air.
Wavelength in dielectric
Guided wavelength in bulk dielectric or microstrip.
Quarter-wave transformer
lambda_g/4 matching section between two impedances.
Smith chart
Z to S11, VSWR, return loss, mismatch loss.
Closed-form is just the start.
Calculators give idealized starting points. A full-wave simulator lets you model the whole system and predict reality much more accurately. RayRF is exceptionally fast at PCB RF simulations with an intuitive UI so you don't waste time on the setup either. Give it a try for free with no commitment.