City University of Hong Kong

Nanjing University of Aeronautics and Astronautics

Wenquan Che

Hang Wong

Shilong Pan

Li Wei

Pak Wai Chan

Xiangchuan Wang

Lihan Wang

Wanchen Yang

Kai Ning Yung

Jinghao Li

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.

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

An integrated wire elliptical helical antenna with novel cuboids dielectric resonator loading for circularly polarized wave transmission and reception is presented. The antenna is designed to operate in the center frequency of 915 MHz and it is utilized in RFID systems as a base station antenna. The elliptical structure is formed by steel wire and supporting acrylic plastic. The cuboids dielectric resonator is loaded at the inner surface of the proposed antenna.

Dielectric loaded elliptical helix antenna

Growing community of inventors

Nanjing, China

Wenquan Che