Waveguide Cutoff Calculator
Calculate cutoff frequencies and mode characteristics for waveguides
About Waveguides
Waveguides are hollow metal structures that guide electromagnetic waves at microwave frequencies. They support different propagation modes with specific cutoff frequencies.
Key Formulas (Rectangular):
- fc = (c/2)√((m/a)² + (n/b)²)
- λg = λ0/√(1 - (fc/f)²)
- vp × vg = c²
Standard Waveguides:
- WR-90: 22.86 × 10.16 mm (8.2-12.4 GHz)
- WR-42: 10.67 × 4.32 mm (18-26.5 GHz)