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MIMO multiband antenna system combining resonant and nonresonant elements
Author(s) -
Andújar Aurora,
Anguera Jaume
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28282
Subject(s) - mimo , spatial multiplexing , electromagnetic reverberation chamber , electronic engineering , 3g mimo , bandwidth (computing) , wireless , antenna (radio) , channel capacity , computer science , electrical engineering , engineering , telecommunications , reverberation , beamforming , channel (broadcasting)
Multi‐input and multi‐output (MIMO) technology will enable high‐data rates in wireless devices to allow speech and video calls to streaming media and web browsing all over a common platform. MIMO technology needs M antennas both in transmission and reception. Because the space in a wireless device is limited, including M antennas is a challenge. To face such challenge, a MIMO antenna system is proposed, which comprises a multiband monopole antenna (35 × 15 mm 2 ) and two small nonresonant elements, each one operating in a particular frequency region: 824–960 and 1710–2170 MHz. The size of each of the nonresonant elements is only 5 × 5 × 5 mm 3 . The proposed MIMO system is analyzed in terms of bandwidth, efficiency, correlation, and multiplexing efficiency. MIMO capacity is measured in a reverberation chamber considering a free‐space Rayleigh scenario and also including the effect of a phantom‐head and hand. The results reveal that the proposed MIMO system provides capacity close to the ideal bound, whereas having a small size and able to operate at several 2G, 3G, and 4G (long‐term evolution) standards. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1076–1084, 2014