Conceptual design approach of wideband fractal dielectric resonator antenna

Ultra wideband (UWB) dielectric resonator antenna using fractal‐inspired feeding mechanism

“…Table 2 provides a comparison of the results of different fractal‐based wideband DRAs 13–26 . The comparative analysis demonstrates that the suggested DRA offers a significantly wider bandwidth while maintaining a compact construction, high peak gain, and good efficiency when compared with existing DRAs in different literatures.…”

“…When designing large or multiband antennas, fractal geometry with its self‐similar compact structure and space‐filling capabilities can be utilized 10 . Several research publications on fractal geometry‐based dielectric resonators for wideband and ultrawideband applications are available in the open literatures 11–22 . By lowering the surface‐to‐volume ratio, fractal geometry is paired with DRAs to create broad impedance bandwidth.…”

“…The proposed antenna structure is quite large and has a bandwidth of 50%. Article 22 presented a curvilinear Sierpinski fractal geometry (CSFG)‐based cylindrical DRA for WLAN and WiMAX applications. The proposed structure offers a peak gain of 12.5 dBi, but the ground plane is enormous and only offers a bandwidth of 45.61%.…”

“…on fractal geometry-based dielectric resonators for wideband and ultrawideband applications are available in the open literatures. [11][12][13][14][15][16][17][18][19][20][21][22] By lowering the surface-to-volume ratio, fractal geometry is paired with DRAs to create broad impedance bandwidth. These articles 11,12 presented fascinating findings but they weren't validated.…”