AMPLIFICATION DEVICE AND AMPLIFICATION METHOD
First Claim
1. An amplification device that includes at least two amplifiers, the amplification device comprising:
- a switching unit that switches an amplification mode to one of a first amplification mode and a second amplification mode based on power of a signal before or after amplification by the amplifiers;
a separating unit that separates an input signal to two signals having a constant amplitude and different phases from each other when switched to the first amplification mode by the switching unit;
a modulation unit that modulates an input signal into a signal having a constant amplitude when switched to the second amplification mode by the switching unit;
an amplification unit that amplifies the two signals obtained by the separating unit or two signals obtained by the modulation unit by using the amplifiers; and
a combining unit that combines the two signals amplified by the amplifiers.
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Accused Products
Abstract
An amplification device includes at least two amplifiers. The amplification device further includes: a switching unit that switches an amplification mode to one of a first amplification mode and a second amplification mode based on power of a signal before or after amplification by the amplifiers; a separating unit that separates an input signal to two signals having a constant amplitude and different phases from each other when switched to the first amplification mode by the switching unit; a modulation unit that modulates an input signal into a signal having a constant amplitude when switched to the second amplification mode by the switching unit; an amplification unit that amplifies the two signals obtained by the separating unit or two signals obtained by the modulation unit by using the amplifiers; and a combining unit that combines the two signals amplified by the amplifiers.
9 Citations
6 Claims
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1. An amplification device that includes at least two amplifiers, the amplification device comprising:
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a switching unit that switches an amplification mode to one of a first amplification mode and a second amplification mode based on power of a signal before or after amplification by the amplifiers; a separating unit that separates an input signal to two signals having a constant amplitude and different phases from each other when switched to the first amplification mode by the switching unit; a modulation unit that modulates an input signal into a signal having a constant amplitude when switched to the second amplification mode by the switching unit; an amplification unit that amplifies the two signals obtained by the separating unit or two signals obtained by the modulation unit by using the amplifiers; and a combining unit that combines the two signals amplified by the amplifiers. - View Dependent Claims (2, 3, 4, 5)
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6. An amplification method in an amplification device that includes at least two amplifiers, the amplification method comprising
switching an amplification mode to one of a first amplification mode and a second amplification mode based on power of a signal before or after amplification by the amplifiers; -
separating an input signal to two signals having a constant amplitude and different phases from each other when switched to the first amplification; modulating an input signal into a signal having a constant amplitude when switched to the second amplification mode; amplifying the two signals obtained by separation performed in the first amplification mode or two signals obtained by modulation performed in the second amplification mode, by using the amplifiers; and combining the two signals amplified by the amplifiers.
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Specification