发明名称 |
LOGARITHMIC MEAN-SQUARE POWER DETECTOR WITH SERVO CONTROL LOOP |
摘要 |
<p>A variable gain amplifier includes a plurality of amplification elements arranged to generate amplified representations of an RF input signal at a plurality of nodes. A plurality of controllable response elements each have an input coupled to a different one of the nodes to receive a different one of the amplified representations of the RF input signal. A scale factor generator is coupled to each of the controllable response elements. The scale factor generator receives a gain control signal and generates scale factor signals for varying the response of each of the controllable response elements such that as the scale factor generator sweeps through a full range of the gain control signal, the response of each of the controllable response elements is, in succession, increased smoothly to a peak and thereafter decreased smoothly to a lower level to produce a scaled output. A summing element is coupled to the controllable response elements for combining the scaled outputs of the controllable response elements to generate an output of the variable gain amplifier having a given gain range.</p> |
申请公布号 |
EP2504921(A4) |
申请公布日期 |
2015.06.10 |
申请号 |
EP20100832318 |
申请日期 |
2010.11.22 |
申请人 |
HITTITE MICROWAVE CORPORATION |
发明人 |
TOKMAK, SAVAS;EKEN, YALCIN, ALPER |
分类号 |
H03G3/30;H03G1/00;H04B1/06 |
主分类号 |
H03G3/30 |
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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