Abstract
This article presents a twofold spoon-shaped UWB antenna compact with a spoon-shaped radiator patch and an inverted cone-shaped ground plane. The proposed antenna achieved 4 dBi gain, 80% efficiency, and 7.6 GHz bandwidth in between 2.80-11GHz operating frequency band for the reflection coefficient of S-11<-10 dB. FR-4 substrate is used to design and fabricate the proposed prototype with compact dimensions of 20 x 20 x 1.6 mm(3), where relative permittivity and loss tangent value is 4.30 and 0.02, respectively. Gain and radiation characteristics are measured using the 3D electromagnetic simulator CST microwave studio 2018 that's offers E-field and H-field omnidirectional patterns. The proposed antenna's impedance bandwidth, radiation patterns, peak gain, and time-domain performance is analyzed to evaluate its appropriateness in UWB communication. Finally, the measured results are agreed with the simulated results.