Abstract: The present invention relates to dual polarized antenna which is capable of simultaneously radiating electromagnetic waves in horizontal as well as vertical polarization directions for the broadest electromagnetic-wave coverage and forming an omnidirectional electromagnetic field.

Abstract: The present invention relates to a mouse having a digital television receiving function and the mouse comprises a casing having an upper casing and a lower casing, a mouse function unit having an interface for detecting mouse coordinates and sending the mouse coordinates out from the interface, a digital television receiver further includes an interface and a radio frequency interface, an antenna for receiving a radio digital television signal and passing the signal to the digital television receiver and decoding the signal into a digital television signal, and a hub separately coupled to the mouse function unit and the digital television receiver for connecting a computer device by a cable, such that a user can use a software on the computer device to control and view the digital television signal received by the digital television receiver.

Abstract: The present invention reveals a multi-band antenna comprising a dielectric plate, a first metal foil and two second metal foils, where the first metal foil and the second metal foils are adhered to a surface of the dielectric plate. The first metal foil comprises a first plate, a second plate, two first stripes and a connecting bar, where the length of the first stripe is equivalent to one fourth wavelength of the first frequency used in the multi-band antenna, the connecting bar connects the center portions of the facing sides of the first plate and the second plate, the total length of the first plate, the second plate and the connecting bar is equivalent to one fourth wavelength of the second frequency used in the multi-band antenna.

Abstract: The present invention reveals a multi-band antenna comprising a dielectric plate, a first metal foil and two second metal foils, where the first metal foil and the second metal foils are adhered to a surface of the dielectric plate. The first metal foil comprises a first plate, a second plate, two first stripes and a connecting bar, where the length of the first stripe is equivalent to one fourth wavelength of the first frequency used in the multi-band antenna, the connecting bar connects the center portions of the facing sides of the first plate and the second plate, the total length of the first plate, the second plate and the connecting bar is equivalent to one fourth wavelength of the second frequency used in the multi-band antenna.