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Miniaturized MIMO Antenna with Complementary Split Ring Resonators Loaded Superstrate for X-band Applications

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Abstract

An aperture coupled two element metamaterial antenna suitable for multiple input multiple output applications in the frequency band of 7.525–9.1 GHz is proposed. This three-layered structure utilizes a vertical array of rectangular complementary split ring resonators between the contiguously placed circular non-bianisotropic complementary split ring resonator radiating elements for enhancement of isolation. This antenna achieves a maximum of 47 dB isolation through this Mu Negative structure insertion in the frequency band for 0.11 λ0 separation of the two antenna elements. The proposed antenna achieves a fractional − 10 dB impedance bandwidth of 18.94% and has a peak gain of 8.15 dB. The efficiency of the antenna is 84.14% and the envelope correlation coefficient is less than 0.03 in the operating band. The antenna is low profile with an overall size of 0.85 λ0 × 0.45 λ0 × 0.133 λ0 and is suitable for X-band military applications.

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No funding was received for conducting this study.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, National Institute of Technology, Trichy, Tamil Nadu, India

    S. Karthigaiveni, R. Pandeeswari & S. Deivalakshmi

Authors
  1. S. Karthigaiveni
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  2. R. Pandeeswari
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  3. S. Deivalakshmi
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All authors contributed to the study conception and design.

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Correspondence to S. Karthigaiveni.

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Karthigaiveni, S., Pandeeswari, R. & Deivalakshmi, S. Miniaturized MIMO Antenna with Complementary Split Ring Resonators Loaded Superstrate for X-band Applications. Wireless Pers Commun 127, 2585–2603 (2022). https://doi.org/10.1007/s11277-021-09088-6

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  • DOI: https://doi.org/10.1007/s11277-021-09088-6

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