LDMOS based feed forward amplifier with improved efficiency
A feed forward amplifier (10) employing high efficiency main (16) and/or error (34) amplifiers with amplifier devices biased in a lower bias class. Small signal nonlinearities in the gain response of the amplifier devices are compensated by a small signal gain adjustment circuit (22, 24). The result...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | A feed forward amplifier (10) employing high efficiency main (16) and/or error (34) amplifiers with amplifier devices biased in a lower bias class. Small signal nonlinearities in the gain response of the amplifier devices are compensated by a small signal gain adjustment circuit (22, 24). The resulting gain response is substantially linear over the entire usable range of RF input power. |
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