Waveguide Probe Antenna 8 dBi Gain, 40GHz-60GHz Frequency Range

The working principle of rectangular waveguide

Wave Propagation: Electromagnetic waves, typically in the microwave or millimeter-wave frequency range, are generated by a source and introduced into the rectangular waveguide. The waves propagate along the length of the waveguide.

Waveguide Dimensions: The dimensions of the rectangular waveguide, including its width (a) and height (b), are determined based on the operating frequency and the desired mode of propagation. The waveguide dimensions are chosen to ensure that the waves can propagate within the waveguide with low losses and without significant distortion.

Cut-off Frequency: The dimensions of the waveguide determine its cut-off frequency, which is the minimum frequency at which a specific mode of propagation can occur. Below the cut-off frequency, the waves are attenuated and cannot propagate efficiently within the waveguide.

Mode of Propagation: The waveguide supports various modes of propagation, each with its own electric and magnetic field distribution. The dominant mode of propagation in rectangular waveguides is the TE10 mode, which has a transverse electric field (E-field) component in the direction perpendicular to the length of the waveguide.