@inproceedings{1fdfa12ecbbc497187ea2d8484bb5440,
title = "Multipole-Based Superdirective Spherical Dielectric Lens Antennas",
abstract = "Advanced higher frequency wireless systems have an intrinsic need for higher directivity antennas. Initial studies of superdirective dielectric lenses are reported. The developed devices are based on the higher-order transverse electric and magnetic modes present in a multilayered sphere realized with high permittivity dielectrics. The superdirective properties of the lenses are empowered by exciting them with a basic unidirectional mixed-multipole antenna. Analytical evaluations of potential ideal configurations have been performed followed with numerical simulations of more realistic versions. The simulated outcomes of three-layer example systems are presented along with comparisons with known directivity bounds to confirm their superdirective performance characteristics.",
author = "Birch, \{Asbjorn T.\} and Samel Arslanagic and Ziolkowski, \{Richard W.\}",
year = "2025",
doi = "10.1109/AP-S/CNC-USNC-URSI55537.2025.11266799",
language = "English",
series = "AP-S International Symposium (Digest) (IEEE Antennas and Propagation Society)",
publisher = "IEEE",
pages = "215--218",
booktitle = "2025 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting",
address = "United States",
note = "2025 IEEE International Symposium on Antennas \& Propagation and North American Radio Science Meeting ; Conference date: 13-07-2025 Through 18-07-2025",
}