Improved surface acoustic wave device

The invention relates to a surface acoustic wave device (10) comprising:-at least one transducer (T1, T2); -two acoustic reflectors (M1, M2) arranged on both sides of at least one transducer so as to form a cavity, each acoustic reflector comprising an array of electrodes (R1, R2) in the form of lines (21) parallel to one another, each array comprising a subset of electrodes connected to a reference potential, denoted as mass (M), so as to define a first connection type (CC), and a subset of electrodes not connected to any potential, so as to define a second connection type (CC); a floating connection defining a second connection type (CO); -at least one switching circuit (CCOM) configured to modify a distribution of connections of at least a portion of the electrodes of each array between different connection types. 本发明涉及一种表面声波设备(10)，包括：-至少一个换能器(T1，T2)；-两个声反射器(M1，M2)，其设置在至少一个换能器的两侧以形成腔，每个声反射器包括呈彼此平行的线(21)形式的电极(R1，R2)阵列，每个阵列包括电极子集，其连接到记为质量(M)的参考电位，以定义第一连接类型(CC)，以及不连接到任何电位的电极子集，即具有定义第二连接类型(CO)的浮置连接；-至少一个开关电路(C