RF Calculators

Z₀, εeff, wavelength, conductor & dielectric loss. Synthesis and analysis modes.

Buried inner-layer trace between two ground planes. Z₀, attenuation, TEM cutoff.

Z₀, TE₁₁ cutoff, loss vs frequency. Presets for RG-58, LMR-400 and common cables.

Coplanar waveguide with or without ground. Z₀, εeff, wavelength via conformal mapping.

Zdiff, Zodd, Zeven, coupling vs gap. Edge-coupled microstrip and broadside stripline.

TE₁₀ cutoff, guide wavelength, wave impedance, attenuation. WR-xx standard presets.

Open-wire feeder and twin-lead. Z₀, C and L per metre, wavelength.

Via L and anti-pad C, self-resonant frequency, impedance vs frequency chart.

δ in µm, surface resistance Rs, conductor loss vs frequency. Any metal.

Z_in from Z_L, Z₀, line length and frequency. Step-by-step formula working, Smith chart path and special case detection.

Cascaded NF, IIP3, P1dB, sensitivity, SFDR. Up to 10 stages with per-stage breakdown.

FSPL in dB, received power, max range. System presets for WiFi, LTE, 5G, satellite.

EIRP, received power, SNR, link margin. Full TX-to-RX budget with all gains and losses.

Radar range equation — max detection range, SNR, MDS. Presets for automotive, weather, ATC and military radars.

Every m×fRF ± n×fLO product up to order 11. Colour-coded in-band / near / out-of-band. CSV export.

Output freq for any input and sample rate. Nyquist zones, alias location, spectral inversion, SNR estimate and AAF requirement.

Butterworth, Chebyshev, Bessel — LP/HP/BP/BS up to 10th order. L/C values + response plot.

Pi and T pad resistor values for any dB and impedance. Power dissipation per resistor.

Resonant frequency, Q, −3 dB bandwidth for series and parallel LC tanks.

Frequency, power, voltage, field strength, noise temp, wavelength — all units at once.

dBm ↔ dBW ↔ W ↔ mW ↔ Vrms ↔ gain ratio. Enter any value, all others update.

VSWR ↔ return loss ↔ |Γ| ↔ mismatch loss. Instant bidirectional conversion.

Complex Γ, |Γ|, phase, VSWR, RL and mismatch loss from any load impedance.

S-param plotter, Smith chart, amplifier stability, cascade, de-embedding, group delay, TDR and signal integrity. Upload any Touchstone file.

Impedance matching (L-network, λ/4, stub tuner), Wilkinson divider and directional coupler design.

Phased array beam pattern simulator, patch antenna design, dipole calculator. Pattern plots and array weights.