Title:
HIGH ORDER MILLER N-PATH FILTER
Document Type and Number:
WIPO Patent Application WO/2019/209728
Kind Code:
A3
Abstract:
An N-path filter (600) with one or more branches selectively coupled to a shared circuit node (606) includes a first branch having a first feedback path and a second feedback path. The first feedback path includes a Miller amplifier (620) having an input coupled to an input voltage and a first capacitor (C1) coupled to both the input voltage and an output of the Miller amplifier. The second feedback path includes a node in common with the first feedback path. The second feedback path also includes a first high pass filter (RHP1, CHP1) coupled to the output of the Miller amplifier and a second capacitor (C2) coupled to both the first capacitor and the first high pass filter.
Inventors:
PARK JOUNG WON (US)
CHANG LI-CHUNG (US)
SABOURI FARAMARZ (US)
CHANG LI-CHUNG (US)
SABOURI FARAMARZ (US)
Application Number:
PCT/US2019/028533
Publication Date:
December 05, 2019
Filing Date:
April 22, 2019
Export Citation:
Assignee:
QUALCOMM INC (US)
International Classes:
H03H19/00
Domestic Patent References:
| WO2017136171A1 | 2017-08-10 |
Foreign References:
| US9374063B1 | 2016-06-21 | |||
| US20170214391A1 | 2017-07-27 |
Other References:
PARK JOUNG WON ET AL: "Channel Selection at RF Using Miller Bandpass Filters", IEEE JOURNAL OF SOLID-STATE CIRCUITS, IEEE SERVICE CENTER, PISCATAWAY, NJ, USA, vol. 49, no. 12, 1 December 2014 (2014-12-01), pages 3063 - 3078, XP011564906, ISSN: 0018-9200, [retrieved on 20141120], DOI: 10.1109/JSSC.2014.2362843
Attorney, Agent or Firm:
HOLDAWAY, Paul et al. (US)
Download PDF: