UWB resistive feedback LNA employing noise and distortion cancellation

IEICE Electronics Express

Asieh Parhizkar Tarighat¹  Mostafa Yargholi¹ 

[1] Department of Electrical Engineering, University of Zanjan

关键词: UWB;    LNA;    resistive feedback;    noise cancellation;    linearity;   

DOI  :  10.1587/elex.9.1370

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)Cited-By(1)A CMOS Low Noise Amplifier (LNA) is designed for RF application by using TSMC RF CMOS 0.18µm technology. Noise cancellation technique is applied to cascode transistor of the LNA core; because source parasitic capacitors of this transistor cause the noise figure increases in high frequency. The linearity of LNA is modified by the second order interaction between the PMOS and NMOS transistors in cascode structure. With this topology lower noise figure, improved linearity and lower power dissipation can be attained. This LNA achieved maximum power gain of 15.3dB at 3GHz band, noise figure of lower than 2.5dB over the whole band of 3-5GHz and IIP3 of +10dBm at 3GHz while drawing 7.42mA from 1.8V supply voltage.

【 授权许可】

Unknown