发明名称 |
Apparatus and method for reduced sample rate class S RF power amplifier |
摘要 |
A Class S RF power amplifier for use in a radio frequency (RF) transmitter. The Class S power amplifier comprises a delta-sigma modulator that receives an analog modulated RF carrier and generates a pulse-width modulated binary signal. The Class S power amplifier also comprises a switch mode power amplifier that receives the pulse-width modulated binary signal generated by the delta-sigma modulator and generates an output carrier signal that switches between a fully on state and a fully off state. The sampling rate of the delta-sigma modulator is less than four times the frequency of the output carrier signal generated by the switch mode power amplifier.
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申请公布号 |
US2006188027(A1) |
申请公布日期 |
2006.08.24 |
申请号 |
US20060327838 |
申请日期 |
2006.01.06 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
JECKELN ERNESTO;LOVINGGOOD BRECK W.;BROBSTON MICHAEL L. |
分类号 |
H04B14/06;H04L27/20 |
主分类号 |
H04B14/06 |
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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