Finally, the antenna, ASK modulation, power supply of the tag, loadimpedance modulation, demodulation, power supply sensor and HF power amplifier were realized.
本文实现了天线、ASK调制、应答器的电源、负载调制、解调、电源传感器和高频功放模块。
2
The impedance matching network of changeable load and wide-belt is required because the input impedance of spiral antenna changes with frequency.