发明名称 |
METHODS AND SYSTEMS TO PROVIDE LOW NOISE AMPLIFICATION |
摘要 |
An amplifier, including a voltage-to-current converter (V2I) to control an output current based on an input voltage, resistive degeneration circuitry to reduce baseband gain of the voltage-to-current converter, capacitive degeneration circuitry to increase passband gain of the voltage-to-current converter, and impedance control circuitry to compensate for negative input impedance of the capacitive degeneration circuitry. The V2I may include series-connected complimentary V2Is. The impedance control circuitry may include resistive negative feedback to provide a real part of input impedance, which may increase a frequency range for which the amplifier is linear. Capacitive degeneration and associated phase compensation may increase a frequency range for which the resistive feedback is negative. The amplifier may be configured as a single-input/single-output system and/or as a differential system. |
申请公布号 |
US2014266439(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
US201313800811 |
申请日期 |
2013.03.13 |
申请人 |
Suetinov Viatcheslav I.;Pinson Keith;Cowley Nicholas P. |
发明人 |
Suetinov Viatcheslav I.;Pinson Keith;Cowley Nicholas P. |
分类号 |
H03G3/00 |
主分类号 |
H03G3/00 |
代理机构 |
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代理人 |
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主权项 |
1. An amplifier, comprising:
a voltage-to-current converter to control an output current based on an input voltage; resistive degeneration circuitry to reduce baseband gain of the voltage-to-current converter; capacitive degeneration circuitry to increase passband gain of the voltage-to-current converter; and impedance control circuitry to compensate for negative input impedance of the capacitive degeneration circuitry. |
地址 |
Swindon GB |