Abstract
The IEEE 802.11 standard is set of LAN protocols, and define the set of the physical layer (PHY) as well as a media access control (MAC) protocols for implementing the WLAN WiFi computer communication at distinct frequencies, inclusive of 2.4GHz, 5GHz, and 60GHz frequency bands. This paper presents high linearity and low reflection coefficient low noise amplifier (LNA), utilizing cascode inductive source degeneration topology, in 45nm CMOS process. The proposed LNA is simulated for working WLAN applications i.e., 2.4GHz frequency range. Implementation of the circuit design has been done in Advanced Design System (ADS) software. The low noise amplifier achieves high third order intercept point (IIP3) of 14.097 dBm, reflection coefficient as input (S11) of -22.627 dB, maximum gain of matching circuit i.e., 19.329 dB, reverse transmission coefficient (S12) of -39.539 dB with nominal noise Figure of 2.353 dB at 2.4GHz frequency. The LNA achieves high stability factor 1.808 from a 1V power supply.
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