A Novel Dual Band-notched UWB Printed Monopole Loaded with Dielectric Resonators

A novel dual band-notched printed monopole for ultra-wideband (UWB) applications is presented. The antenna element consists of a microstrip line-fed metal patch loaded with three dielectric resonators (DRs) to achieve impedance matching and bandwidth enhancement. To realize dual band-notched characteristics, a slot etched in the patch, two L-shaped parasitic strips connected to the DRs, and slots in the ground plane, are used. The two key issues in the antenna concern the loading DRs which are in very close proximity to the slots in the ground plane, and the introduction of the two notch-bands. Measurements demonstrate a good radiation performance with an ultra-wide impedance bandwidth from 2.54 GHz to 13.64 GHz with two band-notches at 3.22-4.06 GHz and 5.04-6.04 GHz. Outside the notches, the antenna reaches a quite high and stable gain over the rest of the UWB band, about 5 dBi in between ca. 6 and 14 GHz.

Automated summary

The novel dual band-notched printed monopole antenna for UWB applications utilizes slots etched in the patch, L-shaped parasitic strips connected to dielectric resonators, and slots in the ground plane to achieve dual band-notched characteristics. The antenna demonstrates good radiation performance with an ultra-wide impedance bandwidth from 2.54 GHz to 13.64 GHz and two band-notches at 3.22-4.06 GHz and 5.04-6.04 GHz.