UWB-MIMO Antenna with High Isolation Using Stub Dedicated to Connected Objects

Yamna, Mounira Ben; Sakli, Hèdi

doi:10.1109/sta50679.2020.9329341

Cited by 1 publication

(1 citation statement)

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“…Fractal shaped defects are also very useful in reducing mutual coupling; some of the applications are complementary modified Minkowski fractal [17], radiator with Sierpinski Knopp fractal [18], H-shaped fractal [19], Hilbert fractal [22], and many more. The modification in a feedline/stub is another way to enhance the isolation, i.e., step feedline with DGS structures [20], tapered feedline and tapered patch [21], spider-shaped radiator with Y-shaped stub [23], Swastik shaped heptaband antenna [24], decoupling dielectric stub (DDS) [26][27][28], I-shaped stub with inverted L-shaped branch to produce a T-like branch on ground [29], etc. Even reconfiguration of frequency is also possible with the help of diode [25].…”

Section: Introductionmentioning

confidence: 99%

Resistance Loaded UWB MIMO with Enhanced Isolation for S and C Band Applications

Sharma¹,

Gupta²,

Märk³

et al. 2023

PIER C

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A hexagon-shaped fractal ultra-wideband (UWB) Multiple Input Multiple Output (MIMO) antenna is proposed in this paper for S (2 GHz to 4 GHz) and C (4 GHz to 8 GHz) band applications. The proposed design consists of two microstrip fed radiating elements of dimension 82 × 44 × 1.6 mm 3 . One rectangular stub and four resistance loaded stubs are introduced in the ground plane to reduce the mutual coupling between the radiators. These decoupling structures reduce the notches and enhance the isolation from −5 dB to −20 dB for the entire frequency range from 2.3 to 7.4 GHz. The performance characteristics and diversity parameters are also investigated which show the values of ECC < 0.004, DG > 9.96, CCL < 0.4, and MEG < 3 dB, and it is concluded that the proposed design is a good candidate for UWB MIMO antenna. The proposed design is fabricated and tested which shows the close agreement between the simulated and measured results.

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