T-strip-fed high-permittivity rectangular dielectric resonator antenna for broadband applications

Conical shape dielectric resonator antenna for ultra wide band applications

“…As it had been already proved that by varying various physical parameter of the antenna we can vary its usable characteristics as by introducing the air gap between DR and ground plane high bandwidth requirements are fulfilled [4], a multilayer DRA can also enhance the band-width [5]. Feeding technique is also an important factor including probe-feed, strip-feed, Tstrip-feed, vertical strip-feed [6], [7], [8] & [9] to vary resonant frequency and Quality factor. Beside this there is another non-negotiable factor by which we can differently categorize our structure with notable advantage i.e.…”

A monopole type Sierpinski carpet fractal patterned rectangular dielectric resonator antenna for UWB application

“…A DRA of multiple layers can be used to enhance the bandwidth [13] as can be loaded dielectric resonators [14]. Since the coupling between the excitation mechanism and the DR significantly affects the resonant frequency and radiation Q factor of a DRA, feeding techniques including T-strip feed DRA [15], L probe feed DRA [16] and vertical strip feed [17], [18] have been proposed. By using the above bandwidth enhancement techniques, operating DRA bandwidth ranges from 25 % to 67 % have been reported for broadside radiation patterns.…”