TRANSCEIVER DEVICE AND IMPEDANCE MATCHING METHOD
First Claim
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1. A transceiver device, comprising:
- an adjustable impedance unit, for selecting a default impedance from a plurality of candidate impedances according to a matching mode signal;
an adjustable power unit, coupled to the adjustable impedance unit, for selecting a default power from a plurality of candidate powers according to the matching mode signal, wherein the default power is corresponding to the default impedance, and the adjustable power unit outputs a transmission signal to a load together with the adjustable impedance unit; and
a receiving module, coupled to the adjustable impedance unit, for receiving a response signal derived from the transmission signal, and determining whether the default impedance is matched with an impedance of the load or not according to a parameter of the response signal.
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Abstract
A transceiver device and an impedance matching method are provided. In the impedance matching method, a plurality of matching modes is set. Each matching mode includes a default impedance and a corresponding default power. In addition, one of the matching modes is selected for outputting a transmission signal to a load. Besides, a response signal derived from the transmission signal is received. Further, whether the default impedance is matched with an impedance of the load or not is determined according to a parameter of the response signal. Thereby, the echo signal can be restrained from being generated.
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Citations
11 Claims
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1. A transceiver device, comprising:
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an adjustable impedance unit, for selecting a default impedance from a plurality of candidate impedances according to a matching mode signal; an adjustable power unit, coupled to the adjustable impedance unit, for selecting a default power from a plurality of candidate powers according to the matching mode signal, wherein the default power is corresponding to the default impedance, and the adjustable power unit outputs a transmission signal to a load together with the adjustable impedance unit; and a receiving module, coupled to the adjustable impedance unit, for receiving a response signal derived from the transmission signal, and determining whether the default impedance is matched with an impedance of the load or not according to a parameter of the response signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An impedance matching method, comprising:
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setting a plurality of matching modes, wherein each matching mode comprises a default impedance and a corresponding default power; selecting one of the matching modes, thereby outputting a transmission signal to a load; receiving a response signal derived from the transmission signal; and determining whether the default impedance is matched with an impedance of the load or not according to a parameter of the response signal. - View Dependent Claims (10, 11)
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Specification