Apollonian-Gasket Monopole Antenna for UWB Dongle Applications With Embedded SIR as Band Notch Structure

Abstract

An Apollonian gasket monopole antenna is designed for ultra-wideband dongle applications. The antenna exhibits impedance bandwidth of 10 GHz extending from 3.1 GHz to 13 GHz. Detailed design guidelines is presented and parametric studies are discussed for clarity. A stepped impedance resonator (SIR) is embedded to achieve a band notch characteristic at 5.6 GHz. The overall size of the antenna is $18 \times 35$ mm2 that makes it suitable for dongle application.