Bandwidth Enhancement and Radiation Characteristics Improvement of Triangular Dielectric Resonator Antenna

Mehdi Ghorbani, Mohsen Khalily, Habib Ghorbaninejad, Pei Xiao, Rahim Tafazolli
2019 2019 International Symposium on Networks, Computers and Communications (ISNCC)  
In this paper, an ultra-wideband, Dielectric Resonator Antenna (DRA) has been proposed. The proposed antenna is based on isosceles triangular DRA (TDRA), which is fed from the base side using a 50Ω probe. For bandwidth enhancement and radiation characteristics improvement, a partially cylindrical-shape hole is etched from its base side which approached probe feed to the center of TDRA. The dielectric resonator (DR) is located over an extended conducting ground plane. This technique has
more » ... ntly enhanced antennas bandwidth from 48.8% to 80% (5.29-12.35 GHz), while the biggest problem was radiation characteristics. The basis antenna possesses negative gain in a wide range of bandwidth from 7.5 GHz to 10.5 GHz down to -13.8 dBi. Using this technique improve antenna gain over 1.6 dBi for whole bandwidth, while peak gain is 7.2 dBi.
doi:10.1109/isncc.2019.8909089 dblp:conf/isncc/GhorbaniKGXT19 fatcat:g4rch5ufqnf3la3os2gjhzogsi