کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6879599 | 1443116 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A 0.3-3.5â¯GHz active-feedback low-noise amplifier with linearization design for wideband receivers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
LNAs for wideband receivers usually require a high linearity to protect the desired signals from out-band interference. Active feedback LNAs always suffer from the nonlinear feedback of source follower, and present a poor linearity. In order to solve this problem, a complementary source follower (CSF) is proposed, which utilizes the different characteristic of NMOS and PMOS to linearize the source follower, leading to an improvement of LNA's IIP3 and IIP2 by about 10â¯dBm and 21â¯dBm respectively. In addition, a post-distortion technique is also used on the common source stage, which further enhances the IIP3 by about 2â¯dBm and IIP2 by 11â¯dBm. After using the two techniques, the noise figure (NF) does not deteriorate; instead it achieves a 0.3â¯dB improvement. A prototype is designed in TSMC 0.18â¯Î¼m CMOS process, and a 14.8â¯mW power is dissipated from a 1.6â¯V supply. In typical process corner, across 0.3 to 3.5â¯GHz, this LNA achieves a 14.6â¯dB gain, a 2.9â¯dB minimum NF, and an IIP2 larger than +22â¯dBm and IIP3 larger than +1.2â¯dBm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 84, February 2018, Pages 192-198
Journal: AEU - International Journal of Electronics and Communications - Volume 84, February 2018, Pages 192-198
نویسندگان
Dong Huang, Xiaofeng Yang, Haifeng Chen, Muhammad Imran Khan, Fujiang Lin,