Abstract
SummaryA modified common source‐common gate (CS‐CG) low‐noise transconductance amplifier (LNTA) with an improved noise figure (NF), operational bandwidth, and power consumption are analyzed in this paper. The common source (CS) stage of the modified LNTA is utilized for noise cancellation and transconductance enhancement of the common gate (CG) transistor. Using these, NF, bandwidth, and power consumption are improved without using extra active elements. Noise analyses show the modified CS‐CG LNTA has lower NF than conventional CS‐CG LNTA. The linearity of the modified CS‐CG LNTA is calculated by Taylor series expression. Besides, a design procedure is proposed based on the obtained equations for linearity and NF. Finally, an ultra‐wideband (UWB) surface acoustic wave (SAW‐less) direct‐conversion receiver is designed in 65 nm complementary metal‐oxide‐semiconductor (CMOS) technology. NF and third‐order intercept point (IIP3) of the designed receiver are simulated as 5 dB and −2 dBm, respectively. The receiver consumes 18.4 mA from a 1.8 V supply voltage.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Circuit Theory and Applications
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
