Printed antenna and a wireless network device having the antenna

A printed antenna for wireless networking device, comprising:

• a base plate made of dielectric material, on a surface of which a first direction and a second direction perpendicular to each other are defined;
• a grounding member electrically grounded and covering at least a partial area on said base plate surface;
• a first antenna which is a dipole antenna extending from the grounding member generally towards the first direction;
• a second antenna which is a monopole antenna extending from the grounding member generally towards the second direction;
• and
• a third antenna which is a monopole antenna extending from the grounding member generally towards a direction opposite to the second direction;
• wherein the second antenna and the third antenna are substantially disposed on the two opposing sides of first antenna.

A wireless networking device, comprising:

• a base plate made of dielectric material;
• a control circuit disposed on the base plate to provide the function of wireless network transmission;
• a grounding member electrically grounded and covering at least a partial area of the base plate surface;
• and
• a printed antenna provided on the base plate at where not covered by the grounding member and connected to the control circuit via a plurality of feedlines to provide the function of wireless signal receiving/transmission;
• wherein said printed antenna further comprises:
• a first antenna which is a dipole antenna, a second antenna which is a monopole antenna, and a third antenna which is a monopole antenna;
• the second antenna and the third antenna are substantially situated on two opposing sides of the first antenna and their shapes substantially correspond to each other.