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

Claim 19:
20. A three-band diversity receiver, comprising:
a matrix triplexer coupled between and antenna and three receivers, the triplexer comprising:
a first sub-filter coupled between a first filter port and a second filter port coupled to the first receiver;
a second sub-filter coupled between the first filter port and a third filter port coupled to the second receiver;
a third sub-filter coupled between the first filter port and a fourth filter port coupled to the third receiver;
wherein each sub-filter comprises a ladder circuit with at least three transversely-excited film bulk acoustic resonator (XBAR) series elements and at least two capacitor shunt elements, and
wherein an impedance of the second, third and fourth filter ports is matched to an input impedance of a respective low noise amplifier, and an impedance at the first filter port is matched to an impedance of an antenna.