Patent ID: 8872598

Claim:
A combiner for electrical signals, comprising: a first transducer connected to a first input port and a second transducer connected to a second input port, and a third transducer connected to an output port, said first, second, and third transducers forming one of a series of subsets of transducers, the electrical signals being propagated between the first and the second input and the output ports, wherein the combiner comprises a medium; and each of the first, second and third transducers are acoustic wave transducers, the electrical signals being carried by acoustic waves propagated between the first and second input ports and the output port within the medium, wherein as a part of the series of transducers of the subsets: at least one of the first transducers of the series is placed between two second transducers connected to respective second input ports in such a manner that acoustic waves emitted by the two second transducers of the second input ports are 180° out of phase at the first input port to generate destructive interferences; and at least one of the second transducers of the series is placed between two first transducers at the first input port in such a manner that acoustic waves emitted by the two first transducers at the first input port are 180° out of phase at the second input port, so as to generate destructive interferences.