Patent ID: 11929733
Assignee: MURATA MANUFACTURING CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A matrix filter, comprising:
a filter input port; and
two or more sub-filters connected between the filter input port and respective filter output ports, each sub-filter comprising a ladder circuit with n transversely-excited film bulk acoustic resonator (XBAR) series elements and n−1 capacitor shunt elements, where n, the order of the sub-filter, is an integer greater than 2, and wherein
an impedance at a first plurality of the respective filter output ports is matched to an input impedance of a low noise amplifier,
an impedance at a second plurality of the respective filter output ports is matched to an output impedance of a power amplifier, and
an impedance at the input port is matched to an impedance of an antenna.