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Design and Development of a Multiband Loop Antenna for Cellular Mobile Handsets
Högskolan i Gävle, Avdelningen för elektronik, matematik och naturvetenskap. (Electronics)
University of Gävle.
Laird Technologies.
2011 (English)In: IEEE International Workshop on Antenna Technology, 2011, 251-254 p.Conference paper (Refereed)
Abstract [en]

This paper presents the results of the design and characterization of a loop antenna for mobile cellularh andsets. Based on a typical smart phone antenna geometry, a bottom mounted off-ground meanderline loop antennah as been designed, which has the potential to cover the required bands of Long Term Evolution (LTE) US 700MHz, Global System for Mobile communications (GSM) 824-960MHz, Digital Communication System (DCS) 1710-1880 MHz, Personal Communication Services PCS 1850-1990 MHz, Universal Mobile Telecommunications System (UMTS) 1920-2170MHz and LTE EU 2500. The carrier volume of 50*10*5mm3 and ground plane of length 100mm is used. The carrier permittivity εr is 2.66 and loss tangent tanδ is 0.00629 @2.44GHz. Copper is used as a metal part of the antenna having conductivity of 5.8e7 S/m and thickness of 0.1mm. The antenna supports balanced and unbalanced modes for certain frequencies. It is highly efficient in terms of small volumetric size for a given bandwidth of operations. The antenna generates weak near field electric and magnetic fields complying with the standards for the Specific Absorption Rate (SAR) and Hearing Aid Compability (HAC). The impact of body effects on the radiation efficiency has been quantified. The measured results of the prototype are in good agreement with the simulated results.

Place, publisher, year, edition, pages
2011. 251-254 p.
National Category
URN: urn:nbn:se:kth:diva-67369DOI: 10.1109/IWAT.2011.5752321ScopusID: 2-s2.0-79957911685ISBN: 978-1-4244-9133-9OAI: diva2:501512
iWAT 2011, the IEEE International Workshop on Antenna Technology, 7-9 March 2011, Hong Kong
QC 200120219Available from: 2011-03-21 Created: 2012-01-27 Last updated: 2012-02-19Bibliographically approved

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