LAUSR

ABSTRACT A compact low-profile conformal dielectric resonator antenna (DRA) excited by coaxial probe is presented in this paper. This paper presents the design, analysis, and experimental validation of a low-profile Dielectric Resonator Antenna (DRA) operating in the C and X bands. The proposed antenna is configured on a convex conformal ground plane, providing enhanced radiation characteristics. The proposed arrangement provides a wide impedance bandwidth of around 36%, that covers the frequency range from 6.9 GHz to 9.7 GHz, with TE11δ mode and TE23δ higher-order mode can be observed corresponding to the resonant frequencies of 7.2 GHz and 9.2 GHz, respectively. Furthermore, a maximum realised gain of 8.4 dBi is attained at 8.3 GHz. The proposed antenna offers a wide impedance bandwidth with more than 90% radiation efficiency throughout the bandwidth. Additionally, a good agreement is observed between the simulated and measured results and proposed DRA has a compact and low-profile of 0.16λg, where λg is the wavelength of the lower cut-off frequency.