A CMOS Distributed Amplifier With Distributed Active Input Balun Using GBW and Linearity Enhancing Techniques

被引:50
作者
Jahanian, Amin [1 ]
Heydari, Payam [1 ]
机构
[1] Univ Calif Irvine, Dept Elect Engn & Comp Sci, NCIC Lab, Irvine, CA 92697 USA
基金
美国国家科学基金会;
关键词
Active balun; bandwidth (BW) compensation; BW enhancement; CMOS; coplanar waveguide (CPW) transmission line (t-line); distributed amplifier (DA); gain BW; linearity; BROAD-BAND AMPLIFIER; TRAVELING-WAVE AMPLIFIER; GHZ BANDWIDTH; DESIGN; GAIN; TRANSISTOR; DB;
D O I
10.1109/TMTT.2012.2184134
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
A CMOS distributed amplifier (DA) with distributed active input balun is presented that achieves a gain-bandwidth product of 818 GHz, while improving linearity. Each g(m) cell within the DA employs dual-output two-stage topology that improves gain and linearity without adversely affecting bandwidth (BW) and power. Comprehensive analysis and simulations are carried out to investigate gain, BW, linearity, noise, and stability of the proposed g(m) cell, and compare them with conventional g(m) cells. Fabricated in a 65-nm low-power CMOS process, the 0.9-mm(2) DA achieves 22 dB of gain and a P-1dB of 10 dBm, while consuming dc power of 97 mW from a 1.3-V supply. A distributed balun, designed and fabricated in the same process, using the same g(m) topology achieves a BW larger than 70 GHz and a gain of 4 dB with 19.5-mW power consumption from 1.3-V supply.
引用
收藏
页码:1331 / 1341
页数:11
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