Photograph of a broadband full-corporate-fed 16x16-element slot array based on the single-layer SIW.
Abstract:
A single-layer corporate-fed substrate integrated waveguide slot array antenna is newly proposed and verified. It is characterized by low profile, easy fabrication, low c...Show MoreMetadata
Abstract:
A single-layer corporate-fed substrate integrated waveguide slot array antenna is newly proposed and verified. It is characterized by low profile, easy fabrication, low cost, low sidelobes, wideband operation, and high efficiency. A V-band 16\times 16 -element array with uniform excitation is designed for demonstration. The radiating elements and feeding waveguides are arranged within a single-layer substrate, whose dielectric constant and loss tangent are appropriately selected. By adopting the full-corporate feed, the 16\times 16 radiating slots are excited by the 16\times 16 output ports of the feeding circuit, which is composed of cascaded H-plane T-junctions. For further bandwidth improvement, a metal grid plate is introduced on the top of the radiating slots. The test antenna is fabricated by the conventional PCB process. The measured bandwidth for \vert S_{11}\vert < -10 dB is 16.2%, fully covering the 57–67 GHz frequency range. Meanwhile, the measured antenna gain higher than 30 dBi associated with the antenna efficiency higher than 45% is achieved over the 58-65 GHz frequency range.
Photograph of a broadband full-corporate-fed 16x16-element slot array based on the single-layer SIW.
Published in: IEEE Access ( Volume: 11)