Patent ID: 8359077

Claim:
An antenna matching structure for a wireless communication terminal, comprising an adjustable antenna matching circuit, wherein the antenna matching circuit comprises: a measuring unit configured to measure a Received Signal Strength Indicator (RSSI) value; a control unit configured to generate a first switching control signal when the RSSI value measured by the measuring unit is less than a predetermined threshold; a parameter switching unit configured to select one set of matching parameters from predetermined at least one set of matching parameters according to the first switching control signal, and switch current matching parameters of the adjustable antenna matching circuit to the selected matching parameters; and an environment detecting unit configured to detect an antenna working environment of the wireless communication terminal; wherein the parameter switching unit preferentially selects a set of matching parameters corresponding to the antenna working environment detected by the environment detecting unit, from the predetermined at least one set of matching parameters according to the first switching control signal, and switches current matching parameters of the adjustable antenna matching circuit to the selected matching parameters, wherein the environment detecting unit comprises: at least one of: a hand held state detecting unit configured to detect whether the wireless communication terminal is in a hand held state; a call state detecting unit configured to detect whether the wireless communication terminal is in a call state; or an earphone state detecting unit configured to detect whether an earphone interface is in an operation state; and a determining unit configured to determine the antenna working environment according to the detection results of the at least one of the hand held state detecting unit, the call state detecting unit or the earphone state detecting unit.