发明名称 |
AMPLIFICATION DEVICE AND RADIO COMMUNICATION APPARATUS |
摘要 |
PROBLEM TO BE SOLVED: To provide an amplification device capable of suppressing a &Dgr; gain even in the case where a frequency band of an input signal is set to a wider band.SOLUTION: An amplification device 7 includes: a driver amplifier 5 for amplifying an input signal P; a power amplifier 6 provided on a post-stage of the driver amplifier 5 for amplifying a signal Poutputted from the driver amplifier 5 and outputting an output signal P; and a variable phase shifter 7 provided between the driver amplifier 5 and the power amplifier 6 for adjusting a phase of the signal Poutputted by the driver amplifier 5 and giving the signal to the power amplifier 6. The variable phase shifter 7 includes a control section 9 for adjusting the phase of the signal outputted by the driver amplifier 5 so as to suppress an increase/decrease range of a gain change of the output signal Pin the case where the input signal Pwithin a predetermined frequency band is amplified. |
申请公布号 |
JP2016010132(A) |
申请公布日期 |
2016.01.18 |
申请号 |
JP20140131650 |
申请日期 |
2014.06.26 |
申请人 |
SUMITOMO ELECTRIC IND LTD |
发明人 |
TANGO HIDEKI;HASHINAGA TATSUYA |
分类号 |
H03F1/42;H03F1/07;H03F1/30;H03F3/24;H03F3/68 |
主分类号 |
H03F1/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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