folded slot antenna - A Design of Wide Band and Wide Beam Cavity‐Backed Slot Antenna ... bs888 slot

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By employing the complementary dipole antenna concept to the normal waveguide fed slot radiator, an improved antenna element with wide impedance bandwidth and symmetrical radiation patterns is developed.

Design a Hat Shaped Folded Patch Antenna For - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. The document describes a proposed design for a hat-shaped folded patch antenna for advanced wireless communication. Key points include: - The antenna design involves a slotted hat-shaped circular patch, a double-sided printed circuit board, a metallic block, and dielectric substrate. - Performance parameters like VSWR, axial ratio, gain, radiation pattern, impedance bandwidth, and circular polarization are evaluated. - The antenna is miniaturized through folding the patch edge and adding slots, and beamwidth is enhanced by modifying the dielectric substrate thickness and metallic block height. - The proposed antenna achieves wide azimuth coverage, high gain, over 10% bandwidth, and is suitable for applications in portable devices.

Jo, “Slot antenna and slot array antenna,” PCT Application WO2019/039833 ... Mescia, "X-band SIW cavity-backed patch antenna for radar applications ...