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Hybrid MIMO Antenna Using Interconnection Tie for Eight-Band Mobile Handsets
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 Title & Authors
Hybrid MIMO Antenna Using Interconnection Tie for Eight-Band Mobile Handsets
Lee, Wonhee; Park, Mingil; Son, Taeho;
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 Abstract
In this paper, a hybrid multiple input multiple output (MIMO) antenna for eight-band mobile handsets is designed and implemented. For the MIMO antenna, two hybrid antennas are laid symmetrically and connected by an interconnection tie, thereby enabling complementary operation. The tie affects both the impedance and radiation characteristics of each antenna. Further, printed circuit board (PCB) embedded type is applied to the antenna design. To verify the results of this study, we designed eight bands-LTE class 12, 13, and 14, CDMA, GSM900, DCS1800, PCS, and WCDMA-and implemented them on a bare board the same size as the real board of a handset. The voltage standing wave ratio (VSWR) is within 3:1 over the entire design band. Antenna isolation is less than -15 dB at the lower band, and -12 dB at the WCDMA band. Envelope correlation coefficient (ECC) of 0.0002-0.05 is obtained for all bands. The average gain and efficiency are measured to range from -4.69 dBi to -2.88 dBi and 33.99% to 51.5% for antenna 1, and -4.74 dBi to -2.97 dBi and 33.45% to 50.49% for antenna 2, respectively.
 Keywords
Hybrid Antenna;Internal Antenna;LTE;MIMO;Mobile Handset Antenna;
 Language
English
 Cited by
1.
A Tilted Combined Beam Antenna for 5G Communications Using a 28-GHz Band, IEEE Antennas and Wireless Propagation Letters, 2016, 15, 1685  crossref(new windwow)
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