Abstract: A wireless communication device includes a cover, an antenna, and an adjusting member. The adjusting member is slidably mounted to the cover and is made of non-conductive materials. The antenna includes a extending portion, the extending portion is sandwiched between the cover and the adjusting member. The adjusting member contacts and partially overlaps with the extending portion, the adjusting member slides relative to the cover to change contact positions of the extending portion and the adjusting member.

Abstract: An exemplary wireless communication device includes a circuit board, a first antenna, a second antenna, and an end portion. The circuit board includes a feed terminal. The first antenna is located on the circuit board adjacent to the feed terminal. The second antenna is electronically connected to the feed terminal. The end portion serves as a portion of a metal housing of the wireless communication device and includes a positioning portion. The positioning portion secures the first antenna and the end portion to the circuit board.

Abstract: A wireless communication device includes a first antenna, a second antenna, a first light sensor adjacent to the first antenna, a second light sensor adjacent to the second antenna, a controller, and a magnetic member movably located between the first antenna and the second antenna. When one of the first and second antennas in a state of receiving/transmitting wireless signals is covered by a user's hand, the nearby light sensor sends a pulse signal to the controller. The controller receiving the pulse signal controls the first and second antennas to change their magnetic polarity, enabling the magnetic member to be separated from one of the first and second antennas and attached to the another one, thereby choosing one of the first and second antennas, or a combination of one of the two antennas and the magnetic member to receive/transmit the wireless signals.

Abstract: An antenna structure includes an antenna and a metal member located between the antenna and an electronic member. The antenna is configured for receiving and sending wireless signals. An electrical length of the metal member is greater than or equal to a quarter wavelength of a resonance frequency band of the antenna. The metal member transmits wireless signals generated by the electronic member to ground to prevent signals generated by the electronic member from interfering with the antenna.

Abstract: A wireless communication device includes a first antenna, a second antenna, a first light sensor adjacent to the first antenna, a second light sensor adjacent to the second antenna, a controller, and a magnetic member movably located between the first antenna and the second antenna. When one of the first and second antennas in a state of receiving/transmitting wireless signals is covered by a user's hand, the nearby light sensor sends a pulse signal to the controller. The controller receiving the pulse signal controls the first and second antennas to change their magnetic polarity, enabling the magnetic member to be separated from one of the first and second antennas and attached to the another one, thereby choosing one of the first and second antennas, or a combination of one of the two antennas and the magnetic member to receive/transmit the wireless signals.

Abstract: An antenna module includes an antenna, a connecting member attached to the antenna, a sliding board configured for sliding relative to connecting member, and a radiation member attached to the sliding board. When the sliding board is slid by a user, the radiation member makes contact with or separates from the connecting member, enabling one antenna module to receive and transmit wireless signals of different wavelengths.

Abstract: An exemplary wireless communication device includes a housing, a first antenna, a second antenna, a switch, and a radio frequency (RF) circuit. The housing includes a first holding portion corresponding to the second holding portion and a second holding portion corresponding to the first holding portion. The RF circuit is selectively connectable to the first antenna or the second antenna via the switch. The sensor is electrically connected to the switch. The sensor senses a state of the housing, wherein the state of the housing is one of position of the housing and proximity of a user's hand to one of the first antenna and the second antenna, and the sensor controls the switch to select the first antenna or the second antenna to connect to the RF circuit to transmit and receive signals wirelessly according to the sensed state of the housing.

Abstract: An exemplary wireless communication device includes a circuit board, a metal end portion, an antenna, and a connecting member. The antenna is positioned on the circuit board. The connecting member interconnects the circuit board and the end portion. The connecting member serves as a feeding point of the antenna. The end portion is a portion of a housing of the wireless communication device and further serves as a radiating portion of the antenna.