Abstract: A glue spreader is disclosed. It is a tubular structure with a body. The body tapers from a first open end to a second open end. A cross-sectional shape of the body gradually changes from a perfect circle at the first open end to an oblate circle at the second open end. The second open end forms a flow guiding curved plate outwards, the flow guiding curved plate extends in a direction vertical to an extending direction of the body and forms two symmetrical curved surfaces, and a straight-line section is formed at the end of each curved surface. The first open end is used to connect to a bottle mouth of a glue bottle of an adhesive glue.

Abstract: A multi-band antenna for a wireless communication device includes a grounding unit coupled to a ground, a first radiating unit, a connecting unit having a first terminal coupled to the first radiating unit and a second terminal, a feeding unit coupled between the second terminal of the connecting unit and the grounding unit for receiving feeding signals, a shorting unit coupled between the second terminal of the connecting unit and the grounding unit, a second radiating unit coupled to the shorting unit.