Magneto Dielectric-Laden Miniaturized Wideband Meander Line Antenna for Mobile Devices

Abstract EN

This research presents a miniaturized wideband meander line antenna (MLA) using a magneto dielectric (MD) material for mobile device applications.

The proposed MLA attached the lower and upper ground planes of the folder-type chassis, connected electrically by grounding strip.

The MD material (ECCOSORB MF-124) was subsequently loaded onto the coupling element area of the MLA.

The MD-laden MLA was ultracompact (10 mm × 25 mm × 1 mm), with the electrical size of 0.015λ × 0.039λ × 0.0015λ at 470 MHz.

The surface current distribution was simulated to determine the optimal parameters of the MD-laden MLA.

To verify, a prototype antenna was fabricated and the experiments were performed.

The measured impedance bandwidth (S11<−6 dB) covered the frequency range of 467–1012 MHz (73.6%), with an omnidirectional radiation pattern.

The radiation efficiency was in excess of 90%, rendering it suitable for the DVB-H/LTE13/GSM850/900 applications.