Abstract: A method of making a housing includes: providing a preliminary housing; forming a plurality of through gaps on the sections of a portion of the preliminary housing by laser cutting technology, remaining sections of the preliminary housing are spaced by the through gaps and form a plurality of metal sheets and the at least one main portion, the metal sheets and the main portion are spaced from each other by the gaps; and forming a plurality of spacers by filling liquid resin composition into the through gaps existing between the at least one main portion and the adjacent metal sheets, and the through gaps between the two adjacent metal sheets, the spacers, the metal sheets, and the main portion constitute a base.

Abstract: A housing includes a base. Sections of a portion of the base defines a plurality of gaps. The base is spaced by the gaps and forms a plurality of metal sheets and the at least one main portion. The gaps are entirely filled with a plurality of spacers. The plurality of spacers is made of resin composition. The metal sheets and the at least one main portion are fixed together by the spacers and are electrically isolated with each other.

Abstract: An antenna structure includes a first carrier, a second carrier and an antenna main body. The antenna main body includes a main antenna and a sub antenna. The main antenna is printed on the first carrier, the sub antenna is printed on the second carrier. The present invention also provides a wireless communication device using the antenna structure.

Abstract: A housing includes a base, sections of a portion of the base defines a plurality of gaps, the base is spaced by the gaps and forms a plurality of metal sheets and the at least one main portion, a plurality of spacers are located in the gaps, the metal sheets and the at least one main portion are fixed together by the spacers.

Abstract: An antenna structure includes a first carrier, a second carrier and an antenna main body. The antenna main body includes a main antenna and a sub antenna. The main antenna is printed on the first carrier, the sub antenna is printed on the second carrier. The present invention also provides a wireless communication device using the antenna structure.

Abstract: A paint composition contains polyurethane paint and nano silicon dioxide. The weight percentage of the nano silicon dioxide in the paint composition is about 2% to about 10%. The surface of the nano silicon dioxide chemically bonds with a silane coupling agent having amino function groups or an aluminate coupling agent having amino function groups.

Abstract: A fiber-and-plastic composite includes a fiber composite, a plastic part, and a silane coupling agent layer and an adhesive layer formed between the fiber composite and the plastic parts. The silane coupling agent layer directly bonds with the fiber composite. The adhesive layer directly bonds with the plastic parts. The silane coupling agent layer comprises hydrolytic silane coupling agent. The adhesive layer includes one-component polyurethane.

Abstract: A paint composition contains polyurethane paint and nano silicon dioxide. The weight percentage of the nano silicon dioxide in the paint composition is about 2% to about 10%. The surface of the nano silicon dioxide chemically bonds with a silane coupling agent having amino function groups or an aluminate coupling agent having amino function groups.