POWER AMPLIFIER
PROBLEM TO BE SOLVED: To provide a power amplifier and a communication device which can be operated with different frequencies, output power or modulation systems. SOLUTION: A power amplifier includes a first amplifier PA2 including an input terminal and an output terminal, a passive circuit PA3 inc...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a power amplifier and a communication device which can be operated with different frequencies, output power or modulation systems. SOLUTION: A power amplifier includes a first amplifier PA2 including an input terminal and an output terminal, a passive circuit PA3 including an input terminal and an output terminal, a first switch SW2 having a single-pole terminal and two multi-throw terminals. One of the multi-throw terminals of the first switch SW2 is connected to the input terminal of the first amplifier PA2 and the other multi-throw terminal of the first switch SW2 is connected to the input terminal of the passive circuit PA3. COPYRIGHT: (C)2009,JPO&INPIT |
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