Built-in antenna, has antenna monomers generating high-gain and different-aspect radiation pattern via coupling effect of radiation metal sheet inside chip-type antenna and grounding metal sheet

摘要

The antenna has a grounding metal sheet fixed in an inner side of a substrate. A printed circuit board is electrically connected with a chip-type antenna. Three antenna monomers separately including the chip-type antenna and the printed circuit board are respectively fixed at a left side, a right side and a down side of a wireless access point or a circuit board of a router. The antenna monomers generate a high-gain and different-aspect radiation pattern via coupling effect of a radiation metal sheet inside the chip-type antenna and the grounding metal sheet.