Title :
A 8.1 mW 0.1∼2 GHz inductorless CMOS LNTA for software-defined radio applications
Author :
Guo Benqing;Chen Jun;Wang Yao;Jin Haiyan;Wen Guangjun
Author_Institution :
Centre for RFIC and System Technology, School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Abstract :
A wideband inductorless LNTA is proposed in this paper. The active shunt feedback schematic ensures a wideband input matching while the noise cancellation configuration enables a small NF. The adopted current mirror load operating the LNTA in current mode alleviates the NF deterioration under blocker interference and maintains acceptable linearity as well. Simulations in 0.18-μm CMOS technology show that the proposed LNTA achieves a minimum NF of 2 dB, and a maximum transconductance of 92 mS from 0.1 to 2 GHz. A P1dB of -7.5 dBm and an IIP3 of -0.6 dBm are obtained, respectively. The circuit draws only 4.5 mA from a 1.8 V supply.
Keywords :
"Noise measurement","Wideband","Impedance matching","Transconductance","CMOS integrated circuits","Shunts (electrical)","Noise cancellation"
Conference_Titel :
ASIC (ASICON), 2015 IEEE 11th International Conference on
Print_ISBN :
978-1-4799-8483-1
Electronic_ISBN :
2162-755X
DOI :
10.1109/ASICON.2015.7517118
