Glass-based Dielectric Resonator Antenna

  • Abstract:

    This work focuses on an Antenna in Package (AiP) solution for 6G communication application. Within the context of this research project, this thesis focuses on variations of a glass-based Dielectric Resonator Antenna (DRA). Antenna development is carried out for optimum resonance within the D-Band (110 to 170 GHz) for the material’s low dielectric constant of 4.6. Manufacturing is performed with Laser-Induced Deep Etching (LIDE) and the feed substrate is flip-chip bonded onto an RF-chip. To investigate the specific properties of the material, this study proposes two DRAs of cylindrical and rectangular cross-section. For a bandwidth of approximately 40 GHz at 130 GHz operating frequency simulations achieve a peak gain of 6.05 dBi and 5.7 dBi, for the respective shape. Empirical results exceed the gain by 6.76 dBi and 6.17 dBi, but with a lowered bandwidth of 18 GHz and 14 GHz, respectively. Contact between probes and the Transmission Line (TL) that feeds the DRA is enabled by a transition from a Grounded Coplanar Waveguide (GCPW) including Vias to a Microstrip (MS) which achieves −0.67 dB insertion loss in simulation and a decrease by 1 dB in measurement results for the band of operation. The last parts of this thesis focusses on simulative array design. The peak gain of a cross-shaped parasitic array with four passive resonators located around an actively excited DRA is 7.88 dBi at an efficiency above 90%. The active 2x2-array obtained a gain of 12.85 dBi with strongest coupling below −15 dB insertion loss.