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Open AccessArticle

Performance Analysis of a Defected Ground-Structured Antenna Loaded with Stub-Slot for 5G Communication

1
Faculty of Engineering, Multimedia University, Persiaran Multimedia, Cyberjaya 63100, Selangor, Malaysia
2
Centre of Advanced Electronic and Communication Engineering (PAKET), Faculty of Engineering and Built Environment, University Kebangsaan Malaysia (UKM), Bangi 43600, Selangor, Malaysia
*
Authors to whom correspondence should be addressed.
Sensors 2019, 19(11), 2634; https://doi.org/10.3390/s19112634
Received: 2 April 2019 / Revised: 19 April 2019 / Accepted: 21 April 2019 / Published: 10 June 2019
(This article belongs to the Section Internet of Things)
In this paper, a defected ground-structured antenna with a stub-slot configuration is proposed for future 5G wireless applications. A simple stub-slot configuration is used in the patch antenna to get the dual band frequency response in the 5G mid-band and the upper unlicensed frequency region. Further, a 2-D double period Electronic band gap (EBG) structure has been implemented as a defect in the metallic ground plane to get a wider impedance bandwidth. The size of the slots and their positions are optimized to get a considerably high impedance bandwidth of 12.49% and 4.49% at a passband frequency of 3.532 GHz and 6.835 GHz, respectively. The simulated and measured realized gain and reflection coefficients are in good agreement for both operating bandwidths. The overall antenna structure size is 33.5 mm × 33.5 mm. The antenna is fabricated and compared with experimental results. The proposed antenna shows a stable radiation pattern and high realized gain with wide impedance bandwidth using the EBG structure, which are necessary for the requirements of IoT applications offered by 5G technology. View Full-Text
Keywords: 5G; defected ground structure; electronic band gap; stub-notch configuration 5G; defected ground structure; electronic band gap; stub-notch configuration
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Rahman, M.M.; Islam, M.S.; Wong, H.Y.; Alam, T.; Islam, M.T. Performance Analysis of a Defected Ground-Structured Antenna Loaded with Stub-Slot for 5G Communication. Sensors 2019, 19, 2634.

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