Title:
POWER AMPLIFIER AND VARIABLE-GAIN AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2018/002978
Kind Code:
A1
Abstract:
The present invention is provided with a state switching unit that sets a first transistor amplification operation to an enabled state and sets a capacitance member to a disconnected state between a signal input terminal (1) and the ground, or sets the first transistor amplification operation to a disabled state and sets the capacitance member to a connected state between the signal input terminal (1) and the ground. Fluctuations in input impedance when the amplification operation switches between enabled and disabled states can thus be minimized.
Inventors:
YAO TOMOHIRO (JP)
MARUYAMA TAKAYA (JP)
TANIGUCHI EIJI (JP)
MARUYAMA TAKAYA (JP)
TANIGUCHI EIJI (JP)
Application Number:
PCT/JP2016/068948
Publication Date:
January 04, 2018
Filing Date:
June 27, 2016
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03G3/10
Domestic Patent References:
| WO2012100947A1 | 2012-08-02 |
Foreign References:
| JP2011119987A | 2011-06-16 | |||
| JP2010239401A | 2010-10-21 | |||
| JP2000101371A | 2000-04-07 |
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (JP)
Download PDF:
Previous Patent: X-RAY GENERATION DEVICE AND ANALYSIS APPARATUS PROVIDED WITH SAME
Next Patent: ANALYSIS DEVICE
Next Patent: ANALYSIS DEVICE