Abstract
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.
Highlights
The world is going to experience 5G technology very soon with the highest broadband speed and minimum latency
To meet the requirement of high broadband speed of up to 20 Gb/s, there will be a need to utilize millimeter wavebands starting from 24 GHz
This paper provides an analysis of the effect of loading defected metallic ground planes with simple stub-slot configuration
Summary
The world is going to experience 5G technology very soon with the highest broadband speed and minimum latency. To ensure widespread coverage and support for all services covered by the previous technology, it needs to work with three frequency ranges. These are Sub-1 GHz, 1–6 GHz, and above (GSA), a substantial number of countries are considering, planning, or in the process of auctioning the band around 3.5 GHz. to meet the requirement of high broadband speed of up to 20 Gb/s, there will be a need to utilize millimeter wavebands starting from 24 GHz. GSMA recommended. 26 GHz (24.25 GHz–27.5 GHz), 40 GHz (37.5 GHz–43.5 GHz), and 67 GHz–71 GHz bands for the mobile For this reason, auctions will take place in the following years in many countries to license the 5G mid-bands and millimeter wavebands.
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