Title:
TRANSMITTING CIRCUIT AND COMMUNICATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2011/001576
Kind Code:
A1
Abstract:
Disclosed is a transmitting circuit wherein modulation distortion can be suppressed even when the output power of a power amplifying unit (141) is small. A signal generating unit (11) generates amplitude signals and phase signals. A regulator (12) outputs a current corresponding to the amplitude signals. A phase modulating unit (13) phase-modulates the phase signals and outputs phase modulation signals. A power amplifying unit (141) is supplied with the current corresponding to the amplitude signals from the regulator (12) as a bias current and amplifies the phase modulation signals using the supplied current. Furthermore, the power amplifying unit (141) is supplied with a predetermined direct current voltage as a collector voltage.
Inventors:
KITAMURA RYO
ISHIDA KAORU
SHIMADA MIKIHIRO
KOMORI HIROSHI
ISHIDA KAORU
SHIMADA MIKIHIRO
KOMORI HIROSHI
Application Number:
PCT/JP2010/002417
Publication Date:
January 06, 2011
Filing Date:
April 01, 2010
Export Citation:
Assignee:
PANASONIC CORP (JP)
KITAMURA RYO
ISHIDA KAORU
SHIMADA MIKIHIRO
KOMORI HIROSHI
KITAMURA RYO
ISHIDA KAORU
SHIMADA MIKIHIRO
KOMORI HIROSHI
International Classes:
H03F1/06; H03F1/32; H03F3/24; H04B1/04
Domestic Patent References:
| WO2008078565A1 | 2008-07-03 |
Foreign References:
| JP2005295523A | 2005-10-20 | |||
| JP2008206142A | 2008-09-04 | |||
| JP2005045817A | 2005-02-17 | |||
| JP2005513943A | 2005-05-12 |
Attorney, Agent or Firm:
OGASAWARA, Shiro (JP)
Shiro Ogasawara (JP)
Shiro Ogasawara (JP)
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