Title:
N-PATH FILTER
Document Type and Number:
WIPO Patent Application WO/2023/238767
Kind Code:
A1
Abstract:
An N-path filter (1) comprises N (N is an integer of 3 or more) signal paths (P1 to PN) that are connected in parallel with each other between an input/output terminal (110) and an input/output terminal (120). The signal path (PN) has a switch (2N) that is connected to the input/output terminal (110) and modulates an input signal, a switch (3N) that is connected to the input/output terminal (120) and modulates the input signal with the same phase as the switch (2N), and a base filter (1N) that is connected between the switch (2N) and the switch (3N). The switch (2N) and the switch (3N) modulate the input signal with a phase, one period of which is composed of the signal paths (P1 to PN), and which differs for each signal path. Each of the base filters (11 to 1N) is a bandpass filter configured by only a passive element.
Inventors:
KANDO HAJIME (JP)
Application Number:
PCT/JP2023/020447
Publication Date:
December 14, 2023
Filing Date:
June 01, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H7/01; H03H19/00; H04B1/38
Foreign References:
| JPH0537406A | 1993-02-12 | |||
| JPH06237149A | 1994-08-23 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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