A novel low profile multi-band antenna for LTE handset

Abstract

A low profile antenna, using coupled-fed, meandered, and folded Planar Inverted-F antenna (PIFA), is proposed to cover multi-band Wireless Wide Area Network (WWAN) operations. The proposed antenna, which is suitable for modern 4G mobile phones, requires only a small foot print of 44 × 20 mm 2. The antenna covers band 14 of LTE-700, GSM-850, GSM-900, DCS-1800, PCS-1900, WCDMA-2100, and band 41 of LTE-2500. In addition to the common WWAN frequencies for mobile communication, the antenna also covers the IEEE802.11b band. The proposed antenna has three simple structures comprising a coupled-fed strip, a meandered shorted-patch, and a folded-patch. These elements are capacitively coupled to each other to form resonant regions in the low bands and the high bands. Modifications to the ground plane are added to achieve a good operation in LTE low band. In the scope of this paper, simulation results, using CST software, are presented to show the effectiveness of the proposed antenna. © 2013 Springer Science+Business Media Dordrecht(Outside the USA).