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A miniaturized CPW-fed CSRR-loaded quad-port MIMO antenna for 5.5/6.5 GHz wireless applications

Published online by Cambridge University Press:  28 July 2023

D. Rajesh Kumar Open the ORCID record for D. Rajesh Kumar [Opens in a new window] ,
T. Sangeetha ,
K. G. Sujanth Narayan Open the ORCID record for K. G. Sujanth Narayan [Opens in a new window] ,
G. Venkat Babu Open the ORCID record for G. Venkat Babu [Opens in a new window] ,
V. Prithivirajan  and
M. S. K. Manikandan
D. Rajesh Kumar*
Affiliation:
Department of Electronics and Communication Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamilnadu, India
T. Sangeetha
Affiliation:
Department of Electronics and Communication Engineering, Karpaga Vinayaga College of Engineering and Technology, Chengalpattu, Tamilnadu, India
K. G. Sujanth Narayan
Affiliation:
Department of Electronics and Communication Engineering, SASTRA Deemed University, Thanjavur, Tamilnadu, India
G. Venkat Babu
Affiliation:
Department of Electronics and Communication Engineering, SASTRA Deemed University, Thanjavur, Tamilnadu, India
V. Prithivirajan
Affiliation:
Department of Electronics and Communication Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Tamilnadu, India
M. S. K. Manikandan
Affiliation:
Department of Electronics and Communication Engineering, Thiagarajar College of Engineering, Madurai, Tamilnadu, India
*
Corresponding author: D. Rajesh Kumar; Email: sdrk87@gmail.com
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Abstract

For forthcoming wireless applications, a small and highly decoupled complementary split ring resonators (CSRR)–loaded co-planar waveguide (CPW)–fed antenna for dual-band applications is investigated. The low-profile antenna consists of a CSRR-loaded rectangular radiating element with a truncated bottom, giving a wideband performance over the frequency ranges of 5.28–5.52 GHz and 6–7.2 GHz. The antenna has been printed on a widely used FR4 substrate measuring 7.5 × 10.5 × 1.6 mm3 in volume. This research’s suggested antenna is turned into a 4 × 4 multi input multi output (MIMO) construction using a 25 × 25 mm2 printed circuit board. Individual antennas were isolated by nearly 20 dB without using a decoupling device. The antenna has been built, and the measured and simulated results correspond well. Computing envelope correlation coefficient (ECC), channel capacity (CC), and channel capacity loss (CCL) further validates the antenna’s performance (−). The antenna has an overall gain of around 2.54 dBi and a radiation efficiency of approximately 89% throughout the relevant spectral range, which is much better for wireless applications. The suggested antenna’s omnidirectional emission pattern makes it a potential contender for future wireless and cellular applications.

Keywords

CCLCPWCSRRECCWi-Fi-6
Type
AntennaDesign, Modelling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 16 , Special Issue 1: MMS 2022 Special Issue , February 2024 , pp. 167 - 176
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Copyright
© The Author(s), 2023. Published by Cambridge University Press in association with the European Microwave Association

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