Patent ID: 11942923
Assignee: RF360 SINGAPORE PTE. LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A half lattice filter, comprising:
an input port, an output port and a signal path between the input port and the output port,
a first segment in the signal path,
a parallel branch that is electrically connected in parallel to the first segment of the signal path,
a first electro acoustic resonator in the first segment,
an impedance element in the parallel branch, and
a phase shifter having a first and second terminal, the phase shifter electrically connected in the parallel branch in series to the impedance element,
wherein the phase shifter comprises two inductively coupled inductance elements and a first capacitance element electrically connected to at least one of the first terminal and the second terminal.