Abstract
SummaryThis research reports the development of an RF sensor integrated circuit (IC) chip capable of tracking the directionality of RF remote emissions. The IC design uses an angle‐of‐arrival algorithm, and it is designed for the 180 nm CMOS technology and applicable to other technologies, also. The sensor chip requires two pairs of antennas aligned and placed at distance s for detection of azimuthal and polar angles of the RF incident wave. The circuit consists of custom designed low‐noise amplifiers (LNAs) at the front end, with a novel design of double‐balanced Gilbert cell mixers (GCMs). This amplifies and mixes the signals from the antennas and converts the phase difference Δφ into an equivalent output voltage map suitable for an 18‐bit analog to digital converter. Systematic optimization techniques were developed to maximize the third‐order intercept point and suppress flicker noise for the LNAs and GCMs, resulting in improved sensing accuracy. The overall system‐level evaluation results showed state‐of‐art angle‐of‐arrival sensing capability with an upper limit error of 3.447°.
Sign-in/Register to access full text options 
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.
