发明名称 |
DC-coupled multi-stage amplifier using all-pass resistive/capacitive network for level shifting |
摘要 |
A resistive level-shifting biasing network is used with a capacitor in parallel to couple FET-based amplifier stages from DC to several GHz in a multi-stage amplifier. The output of the first amplifier stage is connected to the input of the second amplifier stage without a blocking capacitor or level-shifting diodes, allowing a portion of the drain current for the first amplifier stage to be supplied from the second amplifier stage. In a particular embodiment, a distributed amplifier achieved over 20 dB gain from DC to about 80 GHz using three traveling wave amplifier chips.
|
申请公布号 |
US6943631(B2) |
申请公布日期 |
2005.09.13 |
申请号 |
US20030746666 |
申请日期 |
2003.12.23 |
申请人 |
AGILENT TECHNOLOGIES, INC. |
发明人 |
SCHERRER DANIEL R.;BREITBARTH JASON R.;SCHMELZER DAVID P.;CULVER MORGAN K.;D'AVANZO, JR. DONALD C. |
分类号 |
H03F1/30;(IPC1-7):H03F3/68;H03F3/60;H03F3/191 |
主分类号 |
H03F1/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|