Title :
An inductorless wideband low noise amplifier with current reuse and linearity enhancement
Author :
Chuan Qin ; Lei Zhang ; Yan Wang ; Zhiping Yu ; Dajie Zeng
Author_Institution :
CAD Technol. Res. Div., IMETU, Beijing, China
Abstract :
In this paper, a wide-band inductor-less LNA for low voltage operation is presented. The input matching is implemented by using a feedback transistor with a resistor terminated to the source to enhance linearity and to reduce noise. Current reuse technique is employed to increase the total transconductance. Under 1V supply voltage and a DC of 5.6 mA, the LNA achieves an average noise figure of 3.2 dB, a maximum voltage gain of 18.6 dB, and 3 dB bandwidth ranges from 0.2-4.5 GHz.
Keywords :
low noise amplifiers; microwave amplifiers; bandwidth 0.2 GHz to 4.5 GHz; current 5.6 mA; current reuse technique; feedback transistor; gain 18.6 dB; inductorless wideband LNA; inductorless wideband low noise amplifier; linearity enhancement; noise figure 3.2 dB; resistor; Linearity; Noise; Radio frequency; Resistors; Transistors; Wideband;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6571862
