Abstract
An RF front end with a harmonic-rejecting $N$ -path filter is presented. It features tunable narrow-band filtering and high attenuation at the third- and fifth-order local oscillator (LO) harmonics at the LNA output, which improves the blocker tolerance at LO harmonics. The 0.2–1 GHz RF front end is implemented in a 65-nm CMOS process. The blocker 1-dB compression point (B1dB) is −2.4 dBm at a 20-MHz offset, and remains high at the third- and fifth-order LO harmonics. The reverse isolation of the LNA helps keep the LO emission below −90 dBm. A two-stage harmonic rejection approach offers a >51 dB harmonic-rejection ratio at the third- and fifth-order LO harmonics without calibration.
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 callDisclaimer: 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.
