A 0.18 mu m CMOS Gilbert low noise mixer with noise cancellation

被引：1

作者：

Sun Jingye ^{[1
]}

Huang Lu ^{[1
]}

Yuan Haiquan ^{[1
]}

Lin Fujiang ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Elect Sci & Technol, Hefei 230027, Anhui, Peoples R China

来源：

JOURNAL OF SEMICONDUCTORS | 2012年 / 33卷 / 02期

关键词：

noise cancellation; mixer; LNA; low noise figure;

D O I：

10.1088/1674-4926/33/2/025004

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

This paper presents a broadband Gilbert low noise mixer implemented with noise cancellation technique operating between 10 MHz and 0.9 GHz. The Gilbert mixer is known for its perfect port isolation and bad noise performance. The noise cancellation technique of LNA can be applied here to have a better NF. The chip is implemented in SMIC 0.18 mu m CMOS technology. Measurement shows that the proposed low noise mixer has a 13.7-19.5 dB voltage gain from 10 MHz to 0.9 GHz, an average noise figure of 5 dB and a minimum value of 4.3 dB. The core area is 0.6 x 0.45 mm(2).

引用

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