发明名称 |
Wideband CMOS RMS power detection scheme |
摘要 |
A system includes a first circuit and a second circuit. The first circuit includes a first MOS transistor having a gate and a drain. The first circuit is configured to receive a radio frequency (RF) signal at the gate of the first MOS transistor. The drain of the first MOS transistor is configured to output a first current that is proportional to the square of the input voltage of the RF signal while receiving the RF signal. The second circuit includes a second MOS transistor having a source configured to receive a first current from the first circuit. The second MOS transistor is biased in a triode region and has a channel resistance between the source and a drain. The second circuit is configured to output a voltage proportional to the value of the power of the RF signal received by the first circuit.
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申请公布号 |
US2009237068(A1) |
申请公布日期 |
2009.09.24 |
申请号 |
US20090407506 |
申请日期 |
2009.03.19 |
申请人 |
ENTROPIC COMMUNICATIONS, INC. |
发明人 |
VORA SAMEER |
分类号 |
G01R29/08;G06G7/20 |
主分类号 |
G01R29/08 |
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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