Title:
N-PATH FILTER
Document Type and Number:
WIPO Patent Application WO/2023/195387
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 between an input/output terminal (110) and an input/output terminal (120). The signal path (PN) includes a switch (2N) which is connected to the input/output terminal (110) to modulate an input signal, a switch (3N) which is connected to the input/output terminal (120) to modulate the input signal with the same phase as the switch (2N), and a base filter (1N) connected between the switch (2N) and the switch (3N). The switches (2N and 3N) modulate the input signal with a phase of which a period is composed of the signal paths (P1 to PN) and with a different phase for each signal path. Each of the base filters (11 to 1N) is a low-pass filter having inductors (41 and 42).
Inventors:
KANDO HAJIME (JP)
Application Number:
PCT/JP2023/012498
Publication Date:
October 12, 2023
Filing Date:
March 28, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H19/00
Foreign References:
| US20210167999A1 | 2021-06-03 | |||
| JPH0537406A | 1993-02-12 | |||
| JP2021145371A | 2021-09-24 | |||
| JP2011159953A | 2011-08-18 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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