Photo from academic.microsoft.com
A compact microstrip patch antenna with an overall diameter of 6.4 cm (0.34 λ) at the global positioning system L1 band, capable of suppressing up to three radio frequency interferers… Click to show full abstract
A compact microstrip patch antenna with an overall diameter of 6.4 cm (0.34 λ) at the global positioning system L1 band, capable of suppressing up to three radio frequency interferers (RFI) for civilian applications is presented. The antenna consists of two concentric annular rings, where the inner ring is excited at the dominant TM 11 mode and the outer ring is excited at the TM21 mode. Both orthogonal polarizations of both modes are deployed to acquire a total of 3 degrees of freedom for nulling up to three interferers. The input and radiation parameters of the antenna are fully characterized through simulation and measurement. Also, using its measured two-dimensional gain patterns, the nulling performance in the presence of RFI is studied using a simple adaptive algorithm.
Journal Title: IEEE Antennas and Wireless Propagation Letters
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!