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Cavity Resonance Frequency Calculator

Use this tool to calculate the cut-off frequency of a microwave cavity based on its physical dimensions, mode indices, dielectric constant, and magnetic permeability.

a (Width):

b (Length):

h (Height):

m (Mode):

n (Mode):

p (Mode):

εr (Dielectric Constant):

μr (Permeability):

Result: 0 GHz

Formula:

f_mnp = (c / (2 * √(εr * μr))) * √((m/a)² + (n/b)² + (p/h)²)

Where:

c = 3 × 10⁸ m/s (speed of light)
εr = Dielectric Constant
μr = Permeability
a,b,h = Cavity Dimensions
m, n, p = Mode Indices

This tool helps with:

Determining the resonant frequency of a cavity for microwave applications.
Analyzing the effect of cavity dimensions and material properties on resonance.
Supporting RF and microwave circuit design by optimizing cavity parameters.

Related Glossary Entries

Frequency (f)

Wavelength (λ)

Last updated on May 27, 2025 by IBL-Editors Team How helpful was this content for you?