Abstract: A wireless communication circuit and an electronic device are provided. The wireless communication circuit used for an electronic device includes a wireless transceiver unit used to generate a transmitting signal, an impedance matching unit electronically coupled to the wireless transceiver unit, a coupling unit and a system grounding surface. The impedance matching unit includes at least one impedance, the impedance matching unit is used to convert the transmitting signal to a feeding signal according to the impedance value of at least one impedance. The coupling unit is electronically coupled to the impedance matching unit, to radiate the energy of the feeding signal. The system grounding surface is used to transmit a first electromagnetic wave signal via resonance on the plane of the system grounding surface after receiving the energy of the feeding signal.

Abstract: A portable electronic device including a front cover, a back cover and a circuit board is provided. The circuit board is located between the front cover and the back cover. The back cover is combined with the front cover and includes a back section, a plurality of side sections and a separator, at least one of the side sections adjacent to the back cover includes a groove close to the back section and a slot far away from the back section, the slot is connected through to the groove, a first antenna unit and a second antenna unit are defined at the side section by the groove and the slot. The separator is located in the groove and the slot.

Abstract: A wireless communication circuit and an electronic device are provided. The wireless communication circuit used for an electronic device includes a wireless transceiver unit used to generate a transmitting signal, an impedance matching unit electronically coupled to the wireless transceiver unit, a coupling unit and a system grounding surface. The impedance matching unit includes at least one impedance, the impedance matching unit is used to convert the transmitting signal to a feeding signal according to the impedance value of at least one impedance. The coupling unit is electronically coupled to the impedance matching unit, to radiate the energy of the feeding signal. The system grounding surface is used to transmit a first electromagnetic wave signal via resonance on the plane of the system grounding surface after receiving the energy of the feeding signal.

Abstract: A portable electronic device including a front cover, a back cover and a circuit board is provided. The circuit board is located between the front cover and the back cover. The back cover is combined with the front cover and includes a back section, a plurality of side sections and a separator, at least one of the side sections adjacent to the back cover includes a groove close to the back section and a slot far away from the back section, the slot is connected through to the groove, a first antenna unit and a second antenna unit are defined at the side section by the groove and the slot. The separator is located in the groove and the slot.

Abstract: An electronic device includes a conducting element, a supporting element, and a multiband antenna is disclosed. The conducting element is connected to the ground of the electronic device by a high impedance connection. The supporting element has a supporting surface, and the supporting surface and the conducting element are perpendicular. The multiband antenna is disposed at the supporting surface and includes a radiating element, and the radiating element and the conducting element form a coupling capacitor.

Abstract: An electronic device includes a conducting element, a supporting element, and a multiband antenna is disclosed. The conducting element is connected to the ground of the electronic device by a high impedance connection. The supporting element has a supporting surface, and the supporting surface and the conducting element are perpendicular. The multiband antenna is disposed at the supporting surface and includes a radiating element, and the radiating element and the conducting element form a coupling capacitor.

Abstract: A portable electronic device includes an integration unit and a main circuit. The integration unit includes a carrier and at least one electronic element disposed on the carrier. The electronic element includes an antenna unit, a button input unit or a sound transmission unit. The main circuit is electrically connected to the electronic element through a conducting wire.