TY - GEN
T1 - Consideration of linearity in cascode low noise amplifiers using double derivative superposition method with a tuned inductor
AU - Park, Chi Wan
AU - Jeong, Jichai
PY - 2007
Y1 - 2007
N2 - In this paper, we propose a highly linear low noise amplifier (LNA) using the double derivative superposition method with a tuned inductor. This topology has an auxiliary common gate stage of the cascode amplifier to cancel each third order intermodulation distortion (IMD3) component and can provide a high third order input intercept point (IIP3) for the 5.25 GHz frequency band. From the simulation results using the TSMC 0.18 μm RF CMOS process, the IIP3 in the proposed cascode LNAs can be improved by 9 dB, compared with the conventional derivative superposition method. The proposed low noise amplifier achieves an IIP3 of +15 dBm with a gain of 10.5 dB, a noise figure (NF) of 2.4 dB, and a power consumption of 6 mA at 1.5 V.
AB - In this paper, we propose a highly linear low noise amplifier (LNA) using the double derivative superposition method with a tuned inductor. This topology has an auxiliary common gate stage of the cascode amplifier to cancel each third order intermodulation distortion (IMD3) component and can provide a high third order input intercept point (IIP3) for the 5.25 GHz frequency band. From the simulation results using the TSMC 0.18 μm RF CMOS process, the IIP3 in the proposed cascode LNAs can be improved by 9 dB, compared with the conventional derivative superposition method. The proposed low noise amplifier achieves an IIP3 of +15 dBm with a gain of 10.5 dB, a noise figure (NF) of 2.4 dB, and a power consumption of 6 mA at 1.5 V.
KW - Derivative superposition (DS)
KW - Field-effect transistor (FET)
KW - Inter-modulation distortion (IMD)
KW - Low noise amplifier (LNA)
KW - Third order input intercept point (IIP3)
UR - http://www.scopus.com/inward/record.url?scp=48149109741&partnerID=8YFLogxK
U2 - 10.1109/KJMW.2007.4402230
DO - 10.1109/KJMW.2007.4402230
M3 - Conference contribution
AN - SCOPUS:48149109741
SN - 142441556X
SN - 9781424415564
T3 - 2007 Korea-Japan Microwave Conference, KJMW2007, Technical Digest 2007
SP - 21
EP - 24
BT - 2007 Korea-Japan Microwave Conference, KJMW2007, Technical Digest 2007
T2 - 2007 Korea-Japan MicroWave Conference, KJMW 2007
Y2 - 15 November 2007 through 16 November 2007
ER -