RFID read write line and antenna matching's optimization device
The utility model provides a RFID read write line and antenna matching's optimization device, including RFID read write line and built -in RF power detecting element, RF power detecting element includes emission unit, power amplifier, directional coupler, the antenna, standing -wave ratio detec...
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| Hauptverfasser: | , , , |
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model provides a RFID read write line and antenna matching's optimization device, including RFID read write line and built -in RF power detecting element, RF power detecting element includes emission unit, power amplifier, directional coupler, the antenna, standing -wave ratio detecting element and receiving element, emission unit sends power amplifier with radiofrequency signal, power amplifier sends directional coupler with signal amplification after enlargeing, and launch through the antenna, the antenna sends directional coupler with reflected signal, directional coupler passes the desired signal who comes with reflected signal and electronic tags to carry out the coupling and obtains coupled signal, and will wherein convert corresponding output voltage through the signal transmission of decay to standing -wave ratio detecting element, with the undamped signal transmission of another part to receiving element. Implement the utility model discloses a RFID read write line and antenna matching's |
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