Germanium telluride-based reflectarray element and millimeter-wave frequency-reconfigurable reflectarray antenna

US12412993B1 · kind B1 · utility

Assignee

• Nanjing University of Aeronautics and Astronautics · CN

Inventors

• Wanchen Yang · Longbeilingcun, CN
• Shilong Pan · Nanjing, CN
• Xiangchuan Wang · Nanjing, CN
• Lihan Wang · Nanjing, CN
• Jinghao Li · Madison, US
• Li Wei · Beijing, CN
• Wenquan Che · Nanjing, CN

Key dates

• Filing date: Jun 25, 2025
• Grant date: Sep 9, 2025
• Expiry date: Jun 25, 2045

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q5/50
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

The provided is a germanium telluride-based reflectarray element and millimeter-wave frequency-reconfigurable reflectarray antenna. The reflectarray antenna includes a plurality of reflectarray elements, a dielectric substrate, a metal ground, and a feed source, where the reflectarray element is located on an upper surface of the dielectric substrate, and includes a loop body and two phase delay lines; two first germanium telluride films are embedded in the loop body to divide the loop body into two parts with equal lengths; each part of the loop body is connected to a middle portion of one phase delay line; two second germanium telluride films are embedded in the phase delay line; the two second germanium telluride films are symmetrically distributed up and down with the middle portion of the phase delay line as a center.