User&amp;#x2019;s head and hand influence on the diversity performance of neutralized two-antenna systems for UMTS handsets

Chebihi, A.; Nyberg, Daniel; Diallo, Aliou; Luxey, Cyril; Thuc, Philippe Le; Staraj, Robert

doi:10.1109/aps.2008.4619832

Cited by 5 publications

(2 citation statements)

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“…A number of techniques have been reported to mitigate strong mutual coupling between two antenna array elements for MIMO system [2][3][4][5][6][7][8]. Amid these techniques, besides loading a slit into the ground [2], other conventional methods such as protruding a single or dual ground branch have also been proposed to acquire low mutual coupling [3][4][5].…”

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confidence: 99%

“…Amid these techniques, besides loading a slit into the ground [2], other conventional methods such as protruding a single or dual ground branch have also been proposed to acquire low mutual coupling [3][4][5]. Recently, novel neutralization technique has also been reported, in which a neutralization line (NL) is linked between the feeding strips or the shorting strips of antenna elements [6][7][8]. By doing so, reverse coupling can be excited to reduce the mutual coupling between antenna elements that are within very close proximity.…”

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confidence: 99%

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4G/5G Multiple Antennas for Future Multi-Mode Smartphone Applications

et al. 2016

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A hybrid antenna is proposed for future 4G/5G MIMO (multiple input multiple output) applications. The proposed antenna is composed of two antenna modules, namely, 4G antenna module and 5G antenna module. The 4G antenna module is a two-antenna array capable of covering the GSM850/900/1800/1900, UMTS2100, and LTE2300/2500 operating bands, while the 5G antenna module is an 8-antenna array operating in the 3.5 GHz band capable of covering the C band (3400-3600 MHz), which could meet the demand of future 5G application. Compared with ideal uncorrelated antennas in an 8 × 8 MIMO system, the 5G antenna module has shown good ergodic channel capacity of approximately 40 bps/Hz, which is only 6 bps/Hz lower than ideal case. This multi-mode hybrid antenna is fabricated, and typically experimental results such as S-parameter, antenna efficiency, radiation pattern, and envelope correlation coefficient (ECC) are presented.

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