WIRELESS CHARGING AND COMMUNICATIONS SYSTEMS WITH DUAL-FREQUENCY PATCH ANTENNAS

摘要

A wireless circuit may be provided in the electronic device. The wireless circuit may include one or more dual frequency dual polarization patch antennas. Each patch antenna may have a patch antenna resonant element that lies in a plane and a ground that rests on a different parallel plane. The patch antenna resonant element may have a first feed positioned along a first central axis and a second feed located along a second central axis orthogonal to the first central axis. The patch antenna resonant element may be rectangular, elliptical, or have other shapes. The shorting pin may be located at a crossing point between the first axis and the second axis. Patch antennas can be used in beam steering arrays. Patch antennas can be used for wireless power transmission at microwave frequencies or other frequencies and can be used to support millimeter wave communication.;