Jul 2026· International Journal of Electronics and Telecommunications· Vol 72, pp. 1-9· 0 citations· 35 references
Abstract
This paper introduces a compact ultra-wideband MIMO antenna featuring an integrated notch-band response. Wideband operation is achieved through the combined use of meandered feed lines, a modified Y-shaped radiating element, and a defected ground structure. The antenna occupies a compact volume of 12 x 8 x 1.6 mm³ and operates over the 30–42.5 GHz frequency range, while notch band from 35 to 38.5 GHz is effectively suppressed using a split-ring resonator positioned parallel to the feed line. Implemented on an RT/Duroid 5880 substrate, the antenna delivers a peak realized gain of 6.51 dB and maintains radiation efficiency above 88%. High inter-element isolation exceeding 22 dB is obtained through a dedicated decoupling structure. Moreover, the proposed MIMO system demonstrates strong diversity performance, with envelope correlation coefficient below 0.02, diversity gain greater than 9.97 dB. These characteristics confirm the suitability of the proposed antenna for compact 5G, satellite, and millimeter-wave communication platforms.
This research paper presents a compact 2×2 multiple-input multiple-output (MIMO) antenna based on Koch fractal geometry for ultra-wideband (UWB) operation. A defected ground structure (DGS) is applied to the ground plane to enhance the impedance bandwidth, while maintaining a compact antenna structure. Moreover, a hybr...
Serhat Hilmi Bizimtuna, M. Kartal· International Symposium ELMA...· 0 citations
A compact four-port MIMO antenna is proposed for the 2.4 GHz ISM band and wireless communication applications. The antenna occupies a compact footprint of 0.372λ0 × 0.372λ0 and is implemented on an FR4 substrate with a dielectric constant of εr = 4.4. Initial antenna design study for unidirectional radiation and high f...
A. Kumar, B. Roy· Advanced Electromagnetics· 0 citations
A new four-port multiple input multiple output (MIMO) antenna has been designed for ultra-wideband (UWB) use, functioning within a frequency spectrum from 3.27 to 18.38 GHz. The antenna elements are arranged orthogonally to minimize mutual interference in the proposed design. The slotted ground plane not only serves as...
Lalit Kumar Sahu, Satish K. Tiwari, Biswajeet Mukherjee et al.· Physica Scripta· 0 citations
A four-element multiple-input multiple-out (MIMO) antenna employing a metamaterial (MMT)-based structure is presented for sub-6 GHz wireless applications. The antenna is fabricated on an FR4 substrate and operates over the 5.7–5.9 GHz band, centred at 5.8 GHz. The overall antenna size is 46 × 44 × 1.6 mm3 (0.89λ0 × 0.8...
R. Julia Karal Adisaya, D. David, M. Nesasudha· Engineering Research Express· 0 citations
This manuscript presents a compact Multiple-Input Multiple-Output (MIMO) Ultra-Wideband (UWB) Vivaldi tapered slot antenna with dual band-notched characteristics. The proposed antenna has overall dimensions of 20 × 29.4 mm2, and its design procedure and performance are comprehensively investigated. A detailed descripti...
Mokhtar Mokhtari, M. Challal, A. Mansoul et al.· Periodica Polytechnica Elect...· 0 citations
This paper presents a compact four-port multiple-input-multiple-output (MIMO) antenna featuring a triple notched-band characteristic for wideband, multiple applications. The single-element antenna is systematically developed and analyzed using the Theory of Characteristic Modes (TCM), where eight modes are investig...
