Mutual coupling reduction of dual port antenna using zero index metasurface structure

Ullah, M.H. and Wan Mahadi, W.N.L. and Latef, T.A. and Islam, M.T. and Uddin, M.J. and Ahsan, M.R. (2015) Mutual coupling reduction of dual port antenna using zero index metasurface structure. International Journal of Applied Electromagnetics and Mechanics, 49 (3). pp. 387-394. ISSN 1383-5416, DOI

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The design and prototyping of a dual port planar printed quad band/Ultra wide band (UWB) patch antenna, with octagonal ring shaped metasurface structure (MSS) assimilated at the back to reduce mutual coupling between antenna elements, is presented. The proposed MSS incorporated UWB antenna has been designed and fabricated on a high permittivity (r15) ceramic filled biopolymer based sandwich structured dielectric substrate. Substantial reductions of mutual coupling (S21) between the dual port array elements of the proposed antenna has been achieved by assimilating a 6 × 9 octagonal ring shaped metasurface structure with near zero refractive index (NZRI) in the ground plane. Measurement results show that the proposed antenna with MSS loading has achieved the reflection co-efficient (S11 <-10 dB) bandwidths of 1.25 (2.25-3.5) GHz, 1 (4-5) GHz, 0.7 (5.9-6.6) GHz and 1.75 (7.7-9.45) GHz. Stable radiation patterns, with gains of 3.18 dBi, 2.96 dBi, 3.34 dBi and 9.61 dBi, have been measured at resonant frequencies of 2.85 GHz, 4.4 GHz, 6.2 GHz and 8.75 GHz.

Item Type: Article
Uncontrolled Keywords: Mutual coupling reduction; Octagonal ring metasurface structure; Near zero refractive index; Dual port antenna; Ultra wideband
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 01 Oct 2018 07:30
Last Modified: 01 Oct 2018 07:30

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