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Internal multiple-input, multiple-output antenna arrays for wireless wide area network and wireless local area network operation in seamless full metal cover laptops
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits. Radio Hardware, Ericsson AB.
TE Connectivity.
SP Technical Research Centre of Sweden.
2014 (English)In: IET Microwaves, Antennas & Propagation, ISSN 1751-8733, Vol. 8, no 2, 73-79 p.Article in journal (Refereed) Published
Abstract [en]

A concept for multiple-input, multiple-output antenna arrays, integrated in an ultrathin full metal cover laptop computer, is proposed. The antennas are for octa-band wireless wide area network (WWAN) and triple-band wireless localarea network (WLAN) operation. The proposed solution makes use of the gap between the metallic display lid and keyboard chassis to form notch and slot antenna arrays, thereby removing the need for additional protrusions or openings. Simulated aswell as measured performance is presented. The notch antenna array for WWAN exhibits wide impedance bandwidth, with more than 24 dB isolation from 690 MHz to 3 GHz, and a total efficiency better than −2.5 dB. The slot antenna array forWLAN shows more than 12 dB isolation and a total efficiency of more than −3 dB. Both arrays exhibit a very-low envelope correlation coefficient of less than 0.1 within their respective frequency bands.

Place, publisher, year, edition, pages
2014. Vol. 8, no 2, 73-79 p.
Keyword [en]
Envelope correlation coefficient, Multiple input, multiple outputs, Notch antennas, Total efficiency, Triple-band, Ultra-thin, Wide impedance bandwidths, Wireless wide area networks
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
URN: urn:nbn:se:kth:diva-136419DOI: 10.1049/iet-map.2013.0163ISI: 000331070500002ScopusID: 2-s2.0-84892989066OAI: diva2:676037
Swedish Research Council, 621-2012-4865

QC 20140313

Available from: 2013-12-05 Created: 2013-12-05 Last updated: 2014-03-13Bibliographically approved

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Cheng, Shi
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