MIMO Antenna Integration for LTE Operation
Peter Futter (1), Gopinath Gampala (2), and C. J. Reddy (2)
1: EM Software & Systems - S.A. (Pty) Ltd., Stellenbosch, South Africa 2: EM Software & Systems (USA) Inc., Hampton, Virginia, USA
4G mobile broadband network technologies, like Long-Term Evolution (LTE), target increased bandwidth to deliver higher data speeds, improved network capacity and better spectrum utilisation [1]. Technologies like MIMO are exploited [1] to provide better channel per- formance. Despite the current trend towards larger tablet-like form factors, device geometry is typically thin and the antenna volume is still limited. The design requirements are multifaceted: antennas must offer good performance while occupying a small volume, in the proximity of multiple/multiband transmitters and densely integrated components, while delivering low mutual coupling needed for effective MIMO performance and still comply with specfic absorption rate (SAR) limits. In [2], a novel electrically small antenna (ESA) design is derived for use in the 2.6 GHz LTE band and the MIMO performance is presented for the antenna and substrate. When the ESA is integrated into a device, the performance is influenced by components and the presence of the human body,which must be taken into account to ensure a robust and comprehensive design.
PIERS, Stockholm, Sweden
2013
August
82
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