发明名称 |
Reducing radio transmitter distortion |
摘要 |
Correction/controlling of amplitude errors in radio transmission is by application of negative feedback to mixer plus power amplifier stages. Incoming signals to the mixer, typically from RF exciter or IF stage, have a modulating envelope. Envelope of mixer modulated carrier signals from the amplifier is detected and applied in anti-phase as negative feedback to the mixer input.
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申请公布号 |
US6215986(B1) |
申请公布日期 |
2001.04.10 |
申请号 |
US19970938994 |
申请日期 |
1997.09.26 |
申请人 |
NORTEL NETWORKS CORPORATION |
发明人 |
GREEN JOHN RODGER |
分类号 |
H01Q3/28;H01Q23/00;H03F1/34;(IPC1-7):H01Q11/12 |
主分类号 |
H01Q3/28 |
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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