Analysis and Design of Single-ended Inductively-degenerated Interstage Matched Common-source Cascode CMOS LNA

The LNA is implemented using 90nm CMOS technology. The cascode topology with single-ended source degeneration using inductor is employed. The high gain is achieved by using common-source (CS) amplifier. A different input matching as well as output matching topology may improve the efficiency and minimize noise of the LNA. An inductance network (Lg, Ls) is used for input matching. An interstage inductor between the common source stage and common gate stage is used to increase the overall gain. The amplifier operates at 2.4 GHz with an input return loss better than -15 dB. The LNA will have high isolation with voltage gain> 15 dB, NF< 4dB, S21> 20dB and IIP3> −10dBm. The LNA consumes current< 14 mA from a near about 1.2-V supply. The detailed analysis of the proposed LNA will be presented. Experimental measurements explain a correct operation of the circuits, tuning of Noise Figure (NF), IIP3 and S-parameters. To our knowledge, this is the first architecture that provides all these particulars. This LNA finds its application at Portable GPS Receiver, BLE (Bluetooth Low Energy), Zigbee, NFC, WiFi, Wireless Sensor Network, RFIC operating at 2.4GHz frequency. Index Terms : Inductively-degenerated, Common-source cascode Low Noise Amplifier (LNA), Interstage match, Figure of Merit (FoM), Input referred third-order intercept point (IIP3), S-parameter.

[1]  Hossein Hashemi,et al.  Concurrent multiband low-noise amplifiers-theory, design, and applications , 2002 .

[2]  Heng Zhang,et al.  Linearization Techniques for CMOS Low Noise Amplifiers: A Tutorial , 2011, IEEE Transactions on Circuits and Systems I: Regular Papers.

[3]  Wong-Sun Kim,et al.  A 2.4 GHz CMOS low noise amplifier using an inter-stage matching inductor , 1999, 42nd Midwest Symposium on Circuits and Systems (Cat. No.99CH36356).

[4]  S. A. Z. Murad,et al.  High gain 2.4 GHz CMOS low noise amplifier for Wireless Sensor Network Applications , 2013, 2013 IEEE International RF and Microwave Conference (RFM).

[5]  Melanie Hartmann,et al.  Design Of Analog Cmos Integrated Circuits , 2016 .

[6]  Behzad Razavi,et al.  RF Microelectronics , 1997 .

[7]  Yiqiang Zhao,et al.  A high gain fully integrated CMOS LNA for WLAN and Bluetooth application , 2013, 2013 IEEE International Conference of Electron Devices and Solid-state Circuits.

[8]  Thomas H. Lee,et al.  The Design of CMOS Radio-Frequency Integrated Circuits: RF CIRCUITS THROUGH THE AGES , 2003 .

[9]  Behzad Razavi,et al.  Design of Analog CMOS Integrated Circuits , 1999 .