Impedance matching device and method

摘要

An impedance matching device includes a matching element array unit with a matching element array to which a transmission pulse and a received pulse pass, an extraction/calculation unit extracting pulse information from the transmission pulse and the received pulse, calculating impedance values corresponding to the pulse information, and calculating an impedance value having best response characteristics of the received pulse with respect to the transmission pulse as a matching impedance value, an array control unit routing the matching element array unit according to the matching impedance value, a first converter converting a frequency of the transmission pulse into a carrier frequency and outputting the transmission pulse to the matching element array unit, a second converter converting the carrier frequency into a low frequency, and a converter control unit outputting a signal for controlling the frequency converting of the first converter and the second converter.

主权项

1. An impedance matching device comprising:
a first converter converting a frequency of a transmission pulse into a carrier frequency and then outputting the transmission pulse to the matching element array unit; a second converter converting the carrier frequency of the transmission pulse having passed through the matching element array unit to the original frequency, converting a frequency of a received pulse being the transmission pulse that is output to an outside and then reflected into a carrier frequency, and then outputting the received pulse to the matching element array unit; a matching element array unit through which a transmission pulse and a received pulse pass; and an extraction/calculation unit extracting pulse information from the transmission pulse and the received pulse passing through the matching element array unit, and calculating matching impedance values using the pulse information.