Title:
POWER CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2017/006688
Kind Code:
A1
Abstract:
A power circuit (1) is provided with: a plurality of power amplifiers (2), (3), (4) for amplifying wireless frequency signals (RF1), (RF2), (RF3); an envelope tracker (6) for supplying variable voltage (Vvar) based on an envelope signal (Se) to the power amplifiers (2), (3), (4); a common line (12) connected to the output side of the envelope tracker (6); and a plurality of branch lines (13), (16), (19) branching from the tip of the common line (12) and being connected, respectively, to the power amplifiers (2), (3), (4). The branch lines (13), (16), (19) are provided, respectively, with subinductors (14), (17), (20). The common line (12) is provided with a main inductor (22) and a capacitor (23).
Inventors:
ISHIWATA YU (JP)
IMANISHI YOSHIHIRO (JP)
UDA SHINGO (JP)
KAWAHARA TATSUMASA (JP)
TAKAYAMA KOTA (JP)
IMANISHI YOSHIHIRO (JP)
UDA SHINGO (JP)
KAWAHARA TATSUMASA (JP)
TAKAYAMA KOTA (JP)
Application Number:
PCT/JP2016/066897
Publication Date:
January 12, 2017
Filing Date:
June 07, 2016
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03F1/06; H04B1/04
Foreign References:
| JP2014502808A | 2014-02-03 | |||
| JP2008042917A | 2008-02-21 | |||
| US20060178119A1 | 2006-08-10 | |||
| JP2009253785A | 2009-10-29 |
Attorney, Agent or Firm:
HIROSE Kazuhiko (JP)
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