Title:
AMPLIFIER AND TRANSMITTER
Document Type and Number:
Japanese Patent JP2019057809
Kind Code:
A
Abstract:
To compensate a parasitic component of a circuit element without complicating a circuit configuration.SOLUTION: An amplifier comprises: a first amplifier for performing amplification action of a signal; (N-1) second amplifiers for sequentially performing an amplification action according to the amplitude of the signal while the first amplifier is performing the amplification action; N input network connected to an input terminal for inputting an input signal; N output networks connected between an output node of the first amplifier and a load-connecting node and between output nodes of the (N-1) second amplifiers and the load-connecting node; and a first bias network for supplying a DC bias voltage to at least one of the N output networks. The first bias network has an electric length of less than 90 degrees.SELECTED DRAWING: Figure 1
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Inventors:
THOMAS MARTIN HONE
YAMAOKA ATSUSHI
YAMAGUCHI KEIICHI
YAMAOKA ATSUSHI
YAMAGUCHI KEIICHI
Application Number:
JP2017180690A
Publication Date:
April 11, 2019
Filing Date:
September 20, 2017
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H03F1/07; H03F3/24; H04B1/04
Domestic Patent References:
| JP2008541648A | 2008-11-20 | |||
| JP2003264402A | 2003-09-19 | |||
| JP2012500583A | 2012-01-05 | |||
| JP2015126432A | 2015-07-06 | |||
| JP2013545400A | 2013-12-19 | |||
| JP2006525751A | 2006-11-09 | |||
| JP2005341447A | 2005-12-08 | |||
| JP2011507445A | 2011-03-03 | |||
| JP2013183234A | 2013-09-12 | |||
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Foreign References:
| US20120126890A1 | 2012-05-24 |
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Suzuki Junsei
Yasushi Kawasaki
Yukitaka Nakamura
Yasukazu Sato
Satoru Asakura
Takeshi Sekine
Suzuki Junsei
Yasushi Kawasaki