Self-Isolated Dual L-Slotted 4-Port UWB MIMO Antenna with Wider Band-Notched Characteristics

Authors T. Hemalatha, B. Roy
Affiliations

School of Electronics Engineering, VIT – AP University, Inavolu, 522237 India

Е-mail bappadittya.roy@vitap.ac.in
Issue Volume 16, Year 2024, Number 4
Dates Received 20 April 2024; revised manuscript received 23 August 2024; published online 27 August 2024
Citation T. Hemalatha, B. Roy, J. Nano- Electron. Phys. 16 No 4, 04010 (2024)
DOI https://doi.org/10.21272/jnep.16(4).04010
PACS Number(s) 84.40.Ba
Keywords Self-isolation, UWB (10) , MIMO (14) , L-Slot, Notch band, Rectangular patch.
Annotation

This research work addresses the challenges associated with isolation techniques in MIMO antenna design. The proposed 4-port L-Slotted Ultra-wideband (UWB) Multiple-Input Multiple-Output (MIMO) antenna design aims to offer a simple and compact solution that naturally ensures isolation between antenna elements. By employing innovative design strategies, notably incorporating L-Slotted structures, the research aims to extend the impedance bandwidth to 14.28 GHz, with a notch band covering the X-band and the lower portion of the Ku-band. The antenna's performance is evaluated by examining key metrics such as reflection coefficient ( – 10 dB), isolation ( – 20 dB), and diversity parameters. The proposed antenna achieved notable maximum |S11| of 22.77 dB at 6.945 GHz, a peak gain of 10.61 dBi, ECC  0.0044, TARC  – 10 dB, and a diversity gain of approximately 9.999 dB. The wide impedance bandwidth and compatibility with various frequency bands make this antenna design adaptable to diverse applications and environments, providing flexibility for different system requirements. With its compact and efficient design, this antenna can be integrated into Internet of Things (IoT) devices and smart appliances, enabling reliable and high-speed wireless connectivity. Wide impedance bandwidth makes this antenna design suitable for various wireless communication applications, including Wi-Fi, 5G, and beyond.

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