| 一种应用于DRM/DAB/DVB-H的噪声抵消和IP3改进的CMOS射频前端设计 |
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| 引用本文： | 王科平,王志功,雷雪梅.一种应用于DRM/DAB/DVB-H的噪声抵消和IP3改进的CMOS射频前端设计[J].半导体学报,2010,31(2):025006-5. |
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| 作者姓名： | 王科平 王志功 雷雪梅 |
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| 作者单位： | Institute;RF-&;OE-ICs;Southeast;University;RF-&OE-ICs;Engineering;Researching;Center;RF-lCs;Systems;Ministry;Education;China; |
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| 基金项目： | Acknowledgment
The authors gratefully acknowledge the help and support of Zhang Hao, Zhang Li and Li Wei in design and testing. |
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| 摘 要： | 本文给出了一种应用于数字广播标准的CMOS射频前端电路芯片，其包括宽带低噪声放大器、正交混频器和可变增益放大器，该前端能够支持200kHz-2GHz频率范围内的多种无线通信标准，该电路在没有牺牲其他电路性能包括电压增益和功耗的情况下，改善了NF和IP3。通过噪声抵消技术降低前端的NF，通过差分多栅晶体管结构（DMGTR）提高前端的IP3。dB线性可变增益放大器的增益控制通过采用工作在线性区的PMOS晶体管来实现。芯片采用0.18um CMOS工艺实现。测试结果表明在200kHz-2GHz范围内S11小于-11.4，增益变化范围在250MHz为12-42dB，在2GHz为4-36dB。单边带NF为3.1-6.1 dB。在中等增益情况下IIP3为-4.7-2.0dBm。整个前端在1.8V电源电压情况下功耗仅仅为36mW。
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| 关 键 词： | 射频前端 CMOS 三磷酸肌醇 应用 可变增益放大器 DRM DVB DAB |
| 收稿时间： | 8/1/2009 9:15:40 PM |
| 修稿时间： | 10/9/2009 1:20:52 PM |
Noise-canceling and IP3 improved CMOS RF front-end for DRM/DAB/DVB-H applications |
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| Wang Keping,Wang Zhigong and Lei Xuemei.Noise-canceling and IP3 improved CMOS RF front-end for DRM/DAB/DVB-H applications[J].Chinese Journal of Semiconductors,2010,31(2):025006-5. |
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| Authors: | Wang Keping Wang Zhigong and Lei Xuemei |
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| Affiliation: | Institute of RF- & OE-ICs, Southeast University, Nanjing 210096, China;Institute of RF- & OE-ICs, Southeast University, Nanjing 210096, China; Engineering Researching Center of RF-ICs & Systems of the Ministry of Education of China, Southeast University, Nanjing 210096, China;Institute of RF- & OE-ICs, Southeast University, Nanjing 210096, China |
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| Abstract: | A CMOS RF(radio frequency) front-end for digital radio broadcasting applications is presented that contains a wideband LNA,I/Q-mixers and VGAs,supporting other various wireless communication standards in the ultrawide frequency band from 200 kHz to 2 GHz as well.Improvement of the NF(noise figure) and IP3(third-order intermodulation distortion) is attained without significant degradation of other performances like voltage gain and power consumption.The NF is minimized by noise-canceling technology,and the I... |
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| Keywords: | RF front-end noise-canceling DMGTR dB-in-linear DRM/DAB/DVB-H CMOS |
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