| 摘要 |
A passive RF tag has an advantage of being compact and lightweight. However, the driving power is limited. In order to increase the maximum communication distance and the number of objects simultaneously identified, power consumption should be efficient and reduced. The semiconductor device includes an antenna circuit, a modulation circuit electrically connected to the antenna circuit, a filter circuit electrically connected to the modulation circuit, and a logic circuit electrically connected to the filter circuit, in which the modulation circuit includes a first resistor and a transistor, the filter circuit includes a capacitor, one terminal of the first resistor is electrically connected to one of a source and a drain of the transistor, the other terminal of the first resistor is electrically connected to the antenna circuit, and a gate of the transistor is electrically connected to one terminal of the capacitor and the logic circuit.
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