Dual-band 4×4 Hexagonal SRR MIMO Antenna with Port Excitation-controlled Gain and Directivity for WLAN/WiMAX Applications
Year: 2023
Type: article
Abstract: This paper presents the total gain and directivity control with port excitation in a 4 × 4 hexagonal split-ring resonator (H-SRR) MIMO antenna for dual-band operation in 2.4/5.2GHz bands.The MIMO antenna shows more than 15 dB isolation between antenna elements placed orthogonally, and a spacing was introduced between them to achieve higher isolation in the first proposed design, then, a Zstructure of specific dimensions was inserted to further improve the isolation between antenna elements.The simulated and measured return losses and transmission coefficients confirmed improved impedance bandwidth and isolation performances.The gain, axial ratio, and radiation pattern performances of the 4 × 4 H-SRR MIMO antenna are studied by exciting different port combinations of the proposed antenna.A wide range of gain and axial ratio variations are observed on exciting single, dual, triple, and quad-ports of the proposed MIMO antenna and discussed using the radiation patterns.Also, various MIMO parameters, ECC < 0.04, TARC < -10 dB, MEG < -6 dB, DG < 10 dB, and CCL < 0.4 bits per second per Hz, are found in the 2.4/5.2GHz bands, which confirms the applicability of proposed H-SRR MIMO antenna with polarization diversity.
Authors: Puneet Sehgal, Kamlesh Patel
Institution: University of Delhi
Language: English
Topic: Antenna Design and Analysis
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Funder: University of Delhi
Awards: G3035680250, G828652968
OpenAlex ID: W4385223072