A Wideband Common-Gate Low-Noise Amplifier Using Capacitive Feedback

被引：0
|
作者：
Ito, Toshihiko [1 ]
Okada, Kenichi [1 ]
Matsuzawa, Akira [1 ]
机构：
[1] Tokyo Inst Technol, Dept Phys Elect, Tokyo 1528552, Japan
来源：
IEICE TRANSACTIONS ON ELECTRONICS | 2012年 / E95C卷 / 10期
关键词：
LNA; wideband; CMOS; capacitive-cross-coupling; capacitive feedback; CMOS LNA; DESIGN;
D O I：
10.1587/transele.E95.C.1666
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a capacitive-cross-coupling common-gate (CCC-CG) LNA using capacitive feedback is proposed to improve the noise figure (NF). In the conventional CCC-CG LNA, the transconductance gm is determined by the input-matching condition while a lager gm is required to improve NE gm of the proposed LNA can be increased and NF can be improved by using the added capacitive feedback. The analytical calculation shows that the proposed LNA can perform better than the conventional CCC-CG LNA. In the measurement results using a 0.18-mu m CMOS technology, the gain is 10.4-13.4 dB, NF is 2.7-2.9 dB at 0.8-1.8 GHz, and IIP3 is -7 dBm at 0.8 GHz. The power consumption is 6.5 mW with a 1.8-V supply.
引用
收藏
页码：1666 / 1674
页数：9
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