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Patent Searching and Data


Title:
電力増幅器
Document Type and Number:
Japanese Patent JP4099580
Kind Code:
B2
Abstract:
A power amplifier able to minimize the deterioration of the linearity with respect to fluctuations in ambient temperature, wherein a first terminal of a first resistance element and a first terminal of a second resistance with a temperature coefficient smaller than that of the first resistance element are connected, the connection point is connected to a gate terminal of an FET, a second terminal of the first resistance element is connected to a bias voltage supply terminal, a second terminal of the second resistance element is connected to the ground potential, a drain terminal of the FET is connected to a power source voltage supply terminal, a source terminal is connected to the ground potential, and the FET and the first resistance element are constituted by semiconductor devices formed on the same semiconductor substrate.

Inventors:
Toshiyuki Koimori
Yamauchi Asaichi
Application Number:
JP2003088542A
Publication Date:
June 11, 2008
Filing Date:
March 27, 2003
Export Citation:
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Assignee:
ソニー株式会社
International Classes:
H03F1/30; H03F3/24
Domestic Patent References:
JP2000209038A
JP8023237A
Attorney, Agent or Firm:
Takahisa Sato