Abstract: A wireless access device includes multiple antennas, multiple paths connected to the multiple antennas, multiple filter circuits configured on the multiple paths, and a processor for controlling the multiple filter circuits. The processor calculates the received signal strength indicators (RSSI) of the multiple antennas, determines an operating band, and selects an antenna with the strongest RSSI accordingly. The processor selects a path according to the antenna and the operating band, and controls at least one of the multiple filter circuits on the paths to improve the quality of the signal received by the wireless access device.

Abstract: 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.

Abstract: 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.

Abstract: A test system for adjusting a wireless communication device by impedance loading features includes a power supply for generating a plurality of voltages, a test fixture coupled to the power supply for generating impedances corresponding to a plurality of impedance loading areas, a test equipment coupled to a test point of the wireless communication device via the test fixture for measuring a plurality of radio frequency characteristic sets of the wireless communication device, and a decision device coupled to the test equipment for determining an optimal impedance loading area of the wireless communication device according to the plurality of radio-frequency characteristic sets.

Abstract: A test system for adjusting a wireless communication device by impedance loading features includes a power supply for generating a plurality of voltages, a test fixture coupled to the power supply for generating impedances corresponding to a plurality of impedance loading areas, a test equipment coupled to a test point of the wireless communication device via the test fixture for measuring a plurality of radio frequency characteristic sets of the wireless communication device, and a decision device coupled to the test equipment for determining an optimal impedance loading area of the wireless communication device according to the plurality of radio-frequency characteristic sets.