Curved near-field-focused slot array antennas

US10985470B2 · kind B2 · utility

Assignee

• University of Electronic Science and Technology of China · CN

Inventors

• Yujian Cheng · Chengdu, CN
• Yafei WU · Chengdu, CN
• Jinfan Zhang · Chengdu, CN
• Fan Zhao · Shanghai, CN
• Chunxu Bai · Chengdu, CN
• Yong Fan · Nanhu, CN
• Kaijun Song · Chengdu, CN
• Bo Zhang · Shanghai, CN
• Xianqi Lin · Sichuan, CN
• Yonghong Zhang · Beijing, CN

Key dates

• Filing date: Apr 17, 2019
• Grant date: Apr 20, 2021
• Expiry date: Apr 17, 2039

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q21/064
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A slot array antenna including a smooth curved surface and planar feed structures which are respectively disposed at two ends of the smooth curved surface and are tangent to the smooth curved surface. The smooth curved surface includes at least two arcs mutually connected by smooth transition. The at least two arcs each includes an upper copper metal layer, a lower copper metal layer, and a dielectric substrate layer between the upper and lower copper metal layers. The upper copper metal layer includes radiating slots, and the adjacent radiating slots in a linear array have opposite offsets along the center line of the slot array antenna. The dielectric substrate layer includes metallic vias symmetrically arranged on both sides of the central line of the antenna to form a substrate integrated waveguide.