发明名称 |
RF POWER SENSOR WITH CHOPPER AMPLIFIER |
摘要 |
<p>An RF power detector having a wide dynamic range may comprise a chopping amplifier and is configured to detect pulsed high frequency RF signals. The chopping amplifier controlled by a bias current regulator amplifies and chops an RF signal by periodically enabling and disabling the amplifier according to a system clock. The chopped high frequency RF signal feeds a Schottky diode biased to operate in the square law region for weak signals. The Schottky diode voltage is tapped and high pass filtered. The voltage drives a logarithmic and linear converter. The converter outputs are summed to produce an output voltage that is a repeatable and stable monotonically increasing function of the RF power.</p> |
申请公布号 |
EP2016432(A2) |
申请公布日期 |
2009.01.21 |
申请号 |
EP20070783311 |
申请日期 |
2007.05.04 |
申请人 |
VIASAT, INC. |
发明人 |
LANG, DAVID;LOPEZ, NOEL, A. |
分类号 |
H03G1/00;G01R21/10 |
主分类号 |
H03G1/00 |
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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