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RF, Microwave, and Transmission-Line Simulators

A high-frequency design hub for stripline, transmission lines, waveguides, Smith charts, antennas, and microwave filters.

13 related simulators

This hub groups closely related tools with static links. Individual simulator URLs stay unchanged while users can move quickly to the right calculation.

Core simulators
Microstrip Transmission Line Calculator
Real-time microstrip line calculator.
Microwave Transmission Line Calculator
Calculate characteristic impedance for coaxial, microstrip, and stripline.
Transmission Line · Reflection Coefficient · Impedance Matching Calculator
Calculate reflection coefficient, VSWR, return loss, and input impedance in real-time.
Coplanar Waveguide (CPW) Simulator
The coplanar waveguide (CPW) simulator computes characteristic impedance Z_0, effective permittivity and guided wavelength from center-strip width, gap,...
Smith Chart Simulator
The Smith chart simulator plots a normalized load impedance z = Z_L/Z_0 on the Gamma plane in real time, with constant-resistance and constant-reactance...
Rectangular Waveguide Mode Calculator
Visualize TE/TM mode fields in rectangular waveguides.
Microwave Filter Design Tool
Design Butterworth, Chebyshev & elliptic microwave filters.
Antenna Basics · Dipole Antenna Calculator
Calculate resonant length, radiation resistance, gain, VSWR & path loss for dipole, monopole, loop & patch antennas.
Antenna Radiation Pattern Simulator
Simulate and visualize antenna radiation patterns in real-time for dipoles, arrays, and Yagis.
Antenna Array Beamforming Calculator
Calculate the array factor for a linear phased array.
Antenna Gain & Directivity Simulator — Friis Transmission Equation
Simulate antenna gain, directivity, and link budget instantly.
Skin Depth (Skin Effect) Calculator
Calculate skin depth for conductors with our .
Wireless Link Budget Calculator (Friis Equation)
Calculate wireless link performance with the Friis equation.

Explore by task

Transmission lines and matching

Microstrip Transmission Line Calculator Microwave Transmission Line Calculator Transmission Line · Reflection Coefficient · Impedance Matching Calculator Coplanar Waveguide (CPW) Simulator Smith Chart Simulator

Waveguides and microwave circuits

Rectangular Waveguide Mode Calculator Microwave Filter Design Tool

Antennas

Antenna Basics · Dipole Antenna Calculator Antenna Radiation Pattern Simulator Antenna Array Beamforming Calculator Antenna Gain & Directivity Simulator — Friis Transmission Equation

Adjacent RF calculations

Skin Depth (Skin Effect) Calculator Wireless Link Budget Calculator (Friis Equation)

Related categories

Electromagnetics & Circuits Power Electronics and Electric-Power Simulators Frequency Response, Bode, and Stability Simulators Heat Exchanger, Fin, and Cooling Design Simulators

FAQ

When should a conductor be treated as a transmission line?
When physical length is no longer negligible compared with wavelength, characteristic impedance, reflection, and matching should be considered instead of lumped behavior.
What does a Smith chart visualize?
It maps reflection coefficient, normalized impedance, and matching-element movement on one plane. It is useful for load matching and stub-tuning intuition.
Why group antennas and transmission lines together?
Antenna performance depends on feed-line matching, so it helps to connect transmission-line behavior, S-parameters, and radiation patterns in one cluster.