Wistron Neweb Corporation

Yu-Meng Yen

Yung-Jinn Chen

Ching-Feng Huang

Tsung-Tsung Huang

Chen-Shu Peng

An antenna switching system is provided. The system includes a radio frequency (RF) circuit for transmitting and receiving signals, a first antenna, a second antenna, a first switch, a first switch assembly, a second switch assembly, and a power divider. The first switch electrically connected to the RF circuit. The first switch assembly electrically connected between the first switch and the first antenna. The second switch assembly electrically connected between the first switch and the second antenna. The power divider electrically connected between the first switch and the first switch assembly and between the first switch and the second switch assembly. When the first switch is switched to the power divider, the signals are transmitted by the first antenna and the second antenna.

Antenna switching system

A wireless communication device includes a first antenna, a second antenna, a first switching circuit, and a first tunable matching circuit. The first switching circuit is electrically connected to the first antenna, the second antenna, and the first tunable matching circuit. In a first operation mode, the first antenna of the wireless communication device performs signal transmission or reception, an impedance value corresponding to the first tunable matching circuit is adjusted to a first impedance value, and the second antenna is conducted to the first tunable matching circuit through the first switching circuit. In a second operation mode, the second antenna of the wireless communication device performs signal transmission or reception, the impedance value corresponding to the first tunable matching circuit is adjusted to a second impedance value, and the first antenna is conducted to the first tunable matching circuit through the first switching circuit.

Wireless communication device

An antenna switching system is provided. The system includes a radio frequency (RF) circuit for transceiving signals, N antennas, a master switch, N switches, and N power dividers. The signals may be transmitted by one of the N antennas, or the signals are transmitted by the antennas of the N antennas.

A wireless communication apparatus and a method for improving specific absorption ration thereof are provided. The method includes following steps. A first signal quality parameter of a first antenna and a second signal quality parameter of a second antenna are obtained. A first amplifier character parameter of a power amplifier while the power amplifier is connected to the first antenna is predicted, and a second amplifier character parameter of the power amplifier while the power amplifier is connected to the second antenna is predicted. The first antenna or the second antenna is selected to transmit a RF transmission signal according to the first amplifier character parameter, the first signal quality parameter, the second amplifier character parameter and the second signal quality parameter.

Growing community of inventors

Hsinchu, Taiwan

Yu-Meng Yen