Leaky-Wave Antennas Based on Width-Modulated Inset Dielectric Waveguide
Knowledge Transfer Office, City University of Hong Kong
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The novelty of this invention is the modulation of the width of the dielectric waveguide. By implementing different aperture widths along the length of the leaky-wave antenna, the antenna can be used for far field or near field focusing applications.
For far-field high-gain applications, the antenna consists of a taper transition part and a sinusoidal width-modulated substrate integrated inset dielectric waveguide. The whole width-modulated inset dielectric waveguide-based leaky-wave antenna can be implemented in a single-layer PCB substrate. The proposed antenna can also be designed for near-field focusing applications by properly selecting the aperture width variation. The taper transition is identical to that of the far-field case.
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