Noise Optimization and Linearization of RF Mixer using Inductive Peaking and Source Degeneration for Radio Local Area Network and Low Power Wireless Access Systems Applications

Abstract

Low Power Wireless Access Systems (LP-WAS) are omnipresent, accomplishing innumerable technological needs. Edict to meet the cutting-edge requirements in terms of cost, power as well as size, they impose very rigid specifications w.r.t. the performance of various subsystems. Inductive-peaking in conjunction with inductive source degeneration technique (IPISD) is proposed for enhanced performance of mixer, to gratify the need of LP-WAS including Radio Local Area Network (R-LAN) applications. It landscapes a double balanced down conversion mixer topology to aim at concurrent optimization of noise figure as well as linearity. Post Layout Simulation (PLS) results reason for a Single Side Band Noise Figure (SSB-NF) of 7.85 dB, Conversion Gain (CG) of 13.71 dB, 2.66 dBm third order input intercept point (IIP <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</inf> ), 71.26 dB Spurious Free Dynamic Range (SFDR), and a 1-dB Gain Compression (1-dB GC) of −9.36 dBm at 3.49 mW of d.c. power consumption (P <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">dc</inf> ) for 5.5 GHz Radio Frequency (RF) input to yield 100 MHz Intermediate frequency (IF) in 180 nm CMOS technology/process node with 1.8 V supply voltage (V <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">DD</inf> ).