Patch antenna and application thereof

摘要

A patch antenna and the related applications are disclosed. The patch antenna includes a radiating metal plate; a metal supporting plate; and a metal fixed plate, wherein the radiating metal plate is round shape with a stripe-shape opening. When the patch antenna is operated at 5.25 GHz, good radiation pattern and antenna gain are provided to cover the bandwidth utilized in Industrial-Scientific-Medical (ISM) band. Moreover, the present invention uses the arrangement of antenna diversity to install two antennas on a base board at the same time, thereby obtaining better antenna performance.