Wideband mm-Wave Hemispherical Dielectric Resonator Antenna with Simple Alignment and Assembly Procedures

• DOI: 10.3390/electronics11182917
• Publication Date: 2022-09-15T00:50:45Z
• Authors: Meshari D. Alanazi; Salam K. Khamas
• Keywords: Wideband; Dielectric resonator antenna; Ground plane; Dielectric resonator

A wideband hemispherical dielectric resonator antenna (DRA) with enhanced gain is proposed for a frequency band of 20 to 28 GHz. The precise alignment and assembly the DRA represent key challenges at such frequencies that were addressed using three approaches: first was based on outlining position ground plane, second involved creating groove in compound plane which placed, third 3D-printing perforated substrate. In all cases, same utilized excited higher-order mode an annular ring slot. high achieved by exciting mode, obtained merging bandwidths two modes. methods used expedite prototyping saving substantial time usually spent adjusting respect feeding configurations measured, impedance bandwidth 33.33% maximum 10 dBi observed. Close agreement between measured simulated results.