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International Journal of Antennas and Propagation
Volume 2014 (2014), Article ID 946781, 8 pages
http://dx.doi.org/10.1155/2014/946781
Research Article

Low SAR, Simple Printed Compact Multiband Antenna for Mobile and Wireless Communication Applications

Microstrip and Microwave Engineering Departments, Electronics Research Institute, 33 El Bohouth St., Dokki, Giza 12622, Egypt

Received 2 May 2014; Revised 30 June 2014; Accepted 13 July 2014; Published 27 August 2014

Academic Editor: Wenhua Yu

Copyright © 2014 K. S. Sultan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Simple multiband planar antenna for wireless communication applications is presented. The proposed antenna performs four resonant modes covering multibands of wireless standards, including LTE 700, GSM, DCS, PCS, UMTS, and LTE 2300/2500. Furthermore, it covers the ISM, WiMAX, and the WLAN bands. The geometry of the proposed antenna consists of a single FR4 substrate where an open cavity fed by a coplanar U-shaped monopole is etched on one side and a short-circuited meander line in the opposite side. The cavity by its nature supports a wide range of higher frequencies, while its boundary that consists of a thin monopole resonates at 900 MHz. The meander line in the opposite side supports the LTE 700 band. The operating bands ranges are (680–748 MHz), (870–960 MHZ), (1.36–1.59 GHz), and (1.71–2.56 GHz). The antenna size is 30 × 18 × 0.8 mm3. The antenna not only has a compact size but also supports a low SAR radiation at all the operating frequencies. The proposed antenna is tested using the four recommended test positions of the CTIA association where the proposed antenna reveals good performance in all test cases in the presence of handset (keypad, battery, speaker camera, RF circuit, and LCD) in talking position, and in standby position.