Abstract: A portable wireless device operating within a specific bandwidth is provided. Conductor elements such as the circuit board, the battery, the card slot, the multimedia socket and the resonator are installed inside the housing of a portable wireless device. The body of the resonator is made of dielectric material with the positive electrode and the negative electrode being formed on the two lateral sides of the dielectric material. The positive electrode and the negative electrode have a positive polarity regulating piece and a negative polarity regulating piece respective with capacitance effect existing between the positive and the negative regulating pieces regulating both the impedance matching and the phase thereof. The resonator, when operating within the range of resonance frequency, is able to couple the energy to conductor elements and generate a radiation field for the portable wireless device together with the conductor elements.

Abstract: A wireless communication device with an embedded dual-band antenna system. The wireless communication device has a body, a housing, a shielding unit, a first antenna unit, a second antenna unit and a control unit. The shielding unit, the first antenna unit and the second antenna unit are disposed in the body, and the shielding unit, the first antenna unit and the second antenna unit are enclosed by the housing. The second antenna unit is separated from the first antenna unit by the shielding unit. The first antenna unit transmits a first signal and the second antenna unit transmits a second signal respectively. In a predetermined interval, the first signal and the second signal are transmitted simultaneously.

Abstract: A multi-band antenna includes a resonance frequency regulator, a ground device, a short-circuiting device and a feed-in line. The resonance frequency regulator provides a first resonance mode and a second resonance mode respectively corresponding to the first band and the second band. The ground device includes a main ground surface, a first ground regulator, and a second ground regulator. The main ground surface includes a first ground point corresponding to the first resonance mode, and a second ground point corresponding to the second resonance mode. The short-circuiting device has one end connected to the resonance frequency regulator, and the other end connected to the second ground point. The short-circuiting device has a feed-in point connected to the feed-in line for transmitting electromagnetic signals and the feed-in line connects with the first ground point.

Abstract: A wireless communication device with an embedded dual-band antenna system. The wireless communication device has a body, a housing, a shielding unit, a first antenna unit, a second antenna unit and a control unit. The shielding unit, the first antenna unit and the second antenna unit are disposed in the body, and the shielding unit, the first antenna unit and the second antenna unit are enclosed by the housing. The second antenna unit is separated from the first antenna unit by the shielding unit. The first antenna unit transmits a first signal and the second antenna unit transmits a second signal respectively. In a predetermined interval, the first signal and the second signal are transmitted simultaneously.

Abstract: A portable wireless device operating within a specific bandwidth is provided. Conductor elements such as the circuit board, the battery, the card slot, the multimedia socket and the resonator are installed inside the housing of a portable wireless device. The body of the resonator is made of dielectric material with the positive electrode and the negative electrode being formed on the two lateral sides of the dielectric material. The positive electrode and the negative electrode have a positive polarity regulating piece and a negative polarity regulating piece respective with capacitance effect existing between the positive and the negative regulating pieces regulating both the impedance matching and the phase thereof. The resonator, when operating within the range of resonance frequency, is able to couple the energy to conductor elements and generate a radiation field for the portable wireless device together with the conductor elements.