Rectangular Waveguide Cutoff Frequency Calculator 计算器

This calculator can be used to calculate the cutoff frequency of a rectangular waveguide based on its dimensions.

Input Parameters

Calculation Results

Calculation Formula

fc = (c/2π) * sqrt((m/a)² + (n/b)²)

Where:
c = speed of light (3 x 10⁸ m/s)
m, n = mode numbers (m=1, n=0 for TE₁₀ mode)

Rectangular Waveguide Cutoff Frequency Calculator 计算器使用指南

Learn how to use the Rectangular Waveguide Cutoff Frequency Calculator and its working principle.

How to Use the Calculator

  1. Enter the width (a) and height (b) of the rectangular waveguide in meters.
  2. Click the "Calculate" button to compute the cutoff frequency.
  3. The result will be displayed in gigahertz (GHz).
  4. If you want to start over, click the "Reset" button.

Working Principle

The cutoff frequency is the minimum frequency at which a wave can propagate through the waveguide without being attenuated. It is determined by the dimensions of the waveguide and the mode of propagation. The calculator uses the TE₁₀ mode for calculation, which is the simplest mode for a rectangular waveguide.