Design and Implementation of Dual-Band MIMO Antenna with Low Mutual Coupling Using EBG for Handheld Applications

Authors

  • Duong Thanh Tu Posts and Telecommunications Institute of technology
  • Nguyen Van Hoc Posts and Telecommunications Institute of technology
  • Vu Van Yem Hanoi University of Science and Technology
  • Pham Dinh Son Posts and Telecommunications Institute of technology

Keywords:

MIMO antenna, Double-side EBG, Mutual coupling

Abstract

A dual-band Multiple Input Multiple Output (MIMO) antenna system with enhanced isolation for LTE and WLAN applications is proposed. Using a double-rectangular Defected Ground Structure (DGS), the MIMO antenna gets two resonant frequencies of 2.6 GHz and 5.7 GHz with bandwidth of 5.7% and 4.3% respectively. To reduce much more mutual coupling between dual-band MIMO antenna ports, a novel double-side Electromagnetic Band Gap (EBG) structure with equivalent circuit model is proposed. Size of t gain of the antenna is getting better, especially at the low band. he EBG unit cell is 8.6x8.6 mm2 that is built on FR4 substrate with height of 1.6 mm, so it is achieved more compact size than conventional EBG structures. With 1x7 EBG structures, the mutual coupling gets -40dB in the low frequency band and -30 dB in the high one with narrow distance of 0.11 from feeding point to feeding point. Furthermore, radiation efficiency as well as gain of the antenna is getting better, especially at the low band.

Author Biographies

Duong Thanh Tu, Posts and Telecommunications Institute of technology

Faculty of Telecommunications 1

Telecommunications Network Department

Nguyen Van Hoc, Posts and Telecommunications Institute of technology

Faculty of Telecommunications 1

Vu Van Yem, Hanoi University of Science and Technology

School of Electronics and Telecommunications

Pham Dinh Son, Posts and Telecommunications Institute of technology

Faculty of Telecommunications 1

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Published

2017-01-01

How to Cite

[1]
D. T. Tu, N. V. Hoc, V. V. Yem, and P. D. Son, “Design and Implementation of Dual-Band MIMO Antenna with Low Mutual Coupling Using EBG for Handheld Applications”, Int. j. eng. technol. innov., vol. 7, no. 1, pp. 48–60, Jan. 2017.

Issue

Vol. 7 No. 1 (2017)

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