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Compact MIMO antenna with high isolation performance

Compact MIMO antenna with high isolation performance

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© The Institution of Engineering and Technology
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A compact two-channel MIMO antenna for mobile handheld devices is proposed. The antenna consists of two folded monopoles with a connecting line facing to the feed point and is orthogonally arranged at the edge of a ground plane. This provides polarisation and pattern diversities with excellent isolation characteristic (< −25 dB at fo). The proposed antenna is designed for the 2.4–2.5 GHz, WLAN (802.11n) service band. The apparent diversity gain in the required bandwidth is 9.95 dB.

Inspec keywords: MIMO communication; mobile handsets; polarisation; antennas

Other keywords: two-channel MIMO antenna; pattern diversities; diversity gain; isolation characteristic; compact MIMO antenna; high isolation performance; polarisation; WLAN service band; mobile handheld devices; folded monopoles

Subjects: Single antennas; Mobile radio systems

References

    1. 1)
      • M. Ozdemir , E. Arvas . Dynamics of spatial correlation and implications on MIMO systems. IEEE Commun. Mag. , s14 - s19
    2. 2)
      • C. Yu , B.Z. Wang , S. Xiao . Optimum design for compact diversity wire antenna with two highly isolated ports. Electron. Lett. , 4 , 154 - 155
    3. 3)
      • A.C.K. Mak , C.R. Rowell , R.D. Murch . Isolation enhancement between two closely packed antennas. IEEE Trans. Antennas Propag. , 11 , 3411 - 3419
    4. 4)
    5. 5)
      • J. Thaysen , K. Jakobsen . Envelope correlation in (N, N) MIMO antenna array from scattering parameters. Microw. Opt. Technol. Lett. , 5 , 832 - 834
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