A 1.5-V Current Mirror Double-Balanced Mixer With 10-dBm IIP3 and 9.5-dB Conversion Gain

被引：26

作者：

Shi, Long Xing ^{[1
]}

Chen, Chao ^{[1
]}

Wu, Jian Hui ^{[1
]}

Zhang, Meng ^{[1
]}

机构：

[1] Southeast Univ, Natl Applicat Specified Integrated Circuit Res Ct, Nanjing 210096, Jiangsu, Peoples R China

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2012年 / 59卷 / 04期

基金：

中国国家自然科学基金;

关键词：

CMOS; current mirror; folded structure; high linearity; mixer; IMPROVED NOISE-FIGURE; CMOS;

D O I：

10.1109/TCSII.2012.2186365

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：

This brief presents the design of a double-balanced mixer for linearity-stringent communication systems. The proposed-mixer is based on a current-mirror structure embedded with a switching pair. By utilizing the linear duplication characteristic of current mirrors, an improved linearity is achieved. The mixer is designed and fabricated in 0.18-mu m 1P6M radio-frequency CMOS process, operating in the frequency band from 0.5 to 3 GHz. Measurement results indicate a peak conversion gain of 9.5 dB, a high input 3rd order intercept point (IIP3) of 10 dBm and a moderate noise figure (NF) of 16.5 dB. In addition, due to the folded structure, the mixer can be applicable in low-supply-voltage applications. The whole mixer has a compact die area of 0.1 mm(2), and the power dissipation is 5.4 mW under 1.5-V supply voltage.

引用

页码：204 / 208

页数：5

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