发明授权
- 专利标题: Millimeter-wave cascode amplifier gain boosting technique
- 专利标题(中): 毫米波共源共栅放大器增益提升技术
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申请号: US11801363申请日: 2007-05-09
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公开(公告)号: US07489201B2公开(公告)日: 2009-02-10
- 发明人: Saikat Sarkar , Padmanava Sen , Stephane Pinel , Joy Laskar
- 申请人: Saikat Sarkar , Padmanava Sen , Stephane Pinel , Joy Laskar
- 申请人地址: US GA Atlanta
- 专利权人: Georgia Tech Research Corp.
- 当前专利权人: Georgia Tech Research Corp.
- 当前专利权人地址: US GA Atlanta
- 代理商 Kenneth W. Float
- 主分类号: H03F3/04
- IPC分类号: H03F3/04
摘要:
Disclosed is a gain boosting technique for use with millimeter-wave cascode amplifiers. The exemplary technique may be implemented using a 0.18 μm SiGe process (FT=140 GHz). It has also been shown that the technique is effective for CMOS processes with comparable FT. An exemplary gain-enhanced cascode stage was measured to have higher than 9 dB gain with a 1-dB bandwidth above 6 GHz with a DC power consumption of 13 mW. In addition, one cascode stage without gain boosting may be cascaded with two gain-boosted cascode amplifier stages to implement a three-stage LNA. The measured stable gain is higher than 24 dB at 60 GHz with a 3-dB bandwidth of 3.1 GHz for 25 mW of DC power consumption. It is believed that this is the first 60 GHz LNA with a higher than 20 dB gain using a 0.18 μm SiGe process.
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