A Wideband Filtering Rectangular Dielectric Resonator Antenna For Modern Wireless Applications

• Published in: 2023 IEEE Third International Conference on Signal, Control and Communication (SCC) pp. 01 - 05
• Main Authors: Mar'ei, Nisrein M., Alja'Afreh, Saqer S., Altakhaineh, Amjaad T, Almatarneh, Aser M., Almajali, Eqab
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.12.2023
• Subjects: Antenna feeds; DRA; Filtering; Filtering Antenna; Microstrip antennas; Microstrip filters; Radiation Nulls; Resonant frequency; Slot antennas; Wideband; Wireless communication
• DOI: 10.1109/SCC59637.2023.10527657

This article introduces a new filtering rectangular dielectric resonator antenna (FDRA) that employs an innovative cross-coupled feeding mechanism, featuring a microstrip-coupled slot at the antenna's base and a slim metallic strip along the DRA's side. This design effectively excites both the TE^{y}_{2 \delta 1} and TE^{y}_{1 \delta 1} modes, giving a substantial -10 dB operational bandwidth covering approximately 900 MHz (ranging from 5.3 to 6.2 GHz). The wideband filtenna undergoes optimization through the introduction of a specialized tunnel and enhancements to the feeding slot, accomplished by the incorporation of two sets of orthogonal slot lines. Two radiation nulls are produced at the borders of the band by this intended design selection, enhancing filtering performance. Extensive simulation results demonstrate that the FDRA boasts an impressive fractional bandwidth of 15%, an average realized gain of 4.8 dBi, and steadfast radiation patterns. As such, this FDRA design emerges as an exceptionally well-suited candidate for the latest wireless applications