Wideband and Miniaturization of Antenna Composed of Metal Case with a Slot and Inner Folded Dipole Antenna

Abstract

This paper presents a antenna composed of metal case with a slot and inner folded dipole antenna. The proposed antenna structure simultaneously achieve the miniaturization of the metal case and the wide bandwidth. The impedance bandwidth of 15.9 % with the size of $0.35\lambda_{0}\times 0.35\lambda_{0}\times 0.03\lambda_{0} (\lambda_{0}$ is the wavelength of low frequency) can be realized by the proposed structure. The proposed structure is validated by the comparison of the simulation and measurement result.