发明名称 |
ADAPTIVE BAND WIDTH AMPLIFIER |
摘要 |
An amplifier exploits Miller-effect capacitance in a cascaded multi-stage self-limiting amplifier arrangement to achieve automatic adaptive bandwidth behavior (without the use of an active feedback control loop). The Miller-effect capacitance varies in accordance with the amplifier signal-level, with the capacitance in turn varying the amplifier bandwidth. Bandwidth is decreased for low-signal-levels and increased for relatively high-signal-levels. The adaptive amplifier technique is especially useful to reduce broadband noise in an IF stage of a communications device before the usable signal is fed to a detector stage. |
申请公布号 |
JPS612407(A) |
申请公布日期 |
1986.01.08 |
申请号 |
JP19850106209 |
申请日期 |
1985.05.20 |
申请人 |
GENERAL ELECTRIC CO |
发明人 |
FUREDERITSUKU JIEEMUSU HAITON |
分类号 |
H03F3/00;H03F3/45;H03G5/16;H03G5/24;H03H11/04;H04B1/10 |
主分类号 |
H03F3/00 |
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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