Updated March 4, 2006

New for March 2006: here's a coplanar waveguide calculator!

Congratulations, you have found one of the most useful areas of the Microwaves101 site! Here are some calculators that will help you in your microwave work. Check back often, we plan to continuously add more! If you notice any errors or have problems with a Microwaves101 calculator, let us know and we will do our best to fix it. And if there is something in the microwave universe that you need to calculate often, drop us a note and we'll see what we can do to include it here. You may win a fine Microwaves101 pocket knife for your suggestions!

Attenuator Calculator

Cascade Calculator

Coplanar Waveguide Calculator

Dual Coax Calculator

Coax Calculator

Microstrip Calculator

Reactance Calculator

Resonant Frequency Calculator

Skin Depth Calculator

Stripline Calculator

Unequal-split Power Divider Calculator

VSWR Calculator

Wavelength Calculator

Wire over Ground Calculator

Be sure to check our download area for stuff we couldn't fit into a simple HTML calculator. Right now we have Excel spreadsheets for:

• synthesizing lumped-element Chebyshev filters (N=3, N=4 and N=5),
• calculating RF sheet resistance for up to three metal layers,
• calculating N-section impedance transformers,
• calculating and plotting group delay from S-parameters,
• calculating and plotting K-factor and maximum available gain from S-parameters (our famous S-Parameter Utilities spreadsheet!)
• cascade analysis of gain, P1dB and noise figure
• and more!

This list keeps growing, check back in a month or two for more spreadsheets.

There might be one or two links to calculators on our Cool Links page.

We haven't bothered to make a resistor color-code calculator for two reasons. The color code is rarely used anymore, and this web site already has a great calculator!