To provide an ultrasound probe capable of suppressing signal degradation caused by a switching circuit which selectively switches a plurality of ultrasound transducers to one to be driven.SOLUTION: An ultrasound probe 20 of an ultrasound diagnostic apparatus 1 comprises: a plurality of ultrasound transducers 21 for cross-transformation between an ultrasound wave and an electrical signal； a switching circuit 22 which selectively switches ultrasound transducers 21 to be electrically connected to a transceiver circuit 12 among the plurality of ultrasound transducers 21； and a matching circuit 23 which is connected to a position for direct coupling to the switching circuit 22 in a preceding or succeeding stage of the switching circuit 22, and performs impedance matching between the switching circuit 22 and a circuit disposed at one of the preceding stage and the subsequent stage of the switching circuit 22.SELECTED DRAWING: Figure 3【課題】複数の超音波振動子のうちから駆動対象を選択的に切り替えるスイッチング回路に起因した信号劣化を抑制し得る超音波プローブを提供すること。【解決手段】超音波診断装置１の超音波プローブ２０であって、超音波と電気信号との相互変換を行う複数の超音波振動子２１と、前記複数の超音波振動子２１のうち、送受信回路１２と電気的に接続する接続対象の超音波振動子２１を選択的に切り替えるスイッチング回路２２と、前記スイッチング回路２２の前段又は後段において、前記スイッチング回路２２と直結する位置に接続され、前記スイッチング回路２２と当該スイッチング回路２２と前段又は後段の回路との間におけるインピーダンスマッチングを行う整合回路２３と、を備える。【選択図】図３
