IEEE Access (Jan 2016)

Hybrid Multi-Mode Narrow-Frame Antenna for WWAN/LTE Metal-Rimmed Smartphone Applications

  • Ji-Wei Lian,
  • Yong-Ling Ban,
  • Yan-Li Yang,
  • Li-Wan Zhang,
  • Chow-Yen-Desmond Sim,
  • Kai Kang

DOI
https://doi.org/10.1109/ACCESS.2016.2593538
Journal volume & issue
Vol. 4
pp. 3991 – 3998

Abstract

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A hybrid multi-mode narrow-frame antenna for WWAN/LTE metal-rimmed smartphone applications is proposed in this paper. The ground clearance is only 5 mm × 45 mm, which is promising for narrow-frame smartphones. The metal rim with a small gap is connected to the system ground by three grounded patches. This proposed antenna can excite three coupled-loop modes and one slot mode. By incorporating these four modes, the proposed antenna can provide coverage for GSM850/900, DCS/PCS/UMTS2100, and LTE2300/2500 operations. Detailed design considerations of the proposed antenna are described, and both experimental and simulated results are also presented.

Keywords