The Hong Kong University of Science and Technology

Bo Hou

Ping Sheng

Weijia Wen

Lei Zhou

Che Ting Chan

A waveguide structure is described wherein microwaves or radio-frequency waves can be guided in their propagation through channels whose cross-sections contain fractal patterns, with relevant dimensions much smaller than the wavelengths of the guided waves. A finite section of such waveguide can be used as an efficient delay line.

Subwavelength waveguide and delay line with fractal cross sections

A three dimensional (3D) fractal structure with H as the mother element is hereby disclosed. Such a 3D structure can act as selective total microwave reflectors or selective microwave filters in transmission. When excited through current injection, such a 3D fractal structure can act as highly efficient antenna for radiating or detecting pre-determined microwaves, with the relevant wavelength much larger than the size of the radiation or detection structure.

Growing community of inventors

Hong Kong, China

Bo Hou