Dual Polarized, Multiband Four-Port Decagon Shaped Flexible MIMO Antenna for Next Generation Wireless Applications

Jayshri Kulkarni, Abdullah G. Alharbi, Chow Yen Desmond Sim, Issa Elfergani, Jaume Anguera, Chemseddine Zebiri, Jonathan Rodriguez

Producción científica: Artículo en revista indizadaArtículorevisión exhaustiva

27 Citas (Scopus)

Resumen

A compact, dual polarized, multiband four-port flexible Multiple Input Multiple Output (MIMO) antennae with the connected ground and high isolation is designed with computation and experimental measurement studies. All four monopole radiators are embedded decagon-shaped flexible FR-4 substrate with an outer radius of 10 mm in order to accomplish circularly polarized (CP) radiations, bandwidth enhancement, and compact size of only $45\times 38\times 0.2$ mm3 ( $0.375\lambda \times 0.316\lambda \times 0.0016\lambda $ , at lowest resonating frequency 2.5GHz). The interconnected ground structure is loaded with an Interlaced Lozenge Structure (ILS) to suppress the surface wave radiations resulting in low mutual coupling between the radiators. The proposed MIMO antenna demonstrates measured 10-dB impedance bandwidths of 9.63% (2.37-2.61 GHz), 28.79% (3.30-4.41 GHz), and 16.91% (4.98-5.90 GHz) in the LTE 38/40, Sub-6 GHz 5G NR n77/n78, WLAN and Wi-Fi bands, respectively. Furthermore, broad 3-dB Axial Ratio Bandwidth (ARBW) of 28.79% (3.30-4.41 GHz) with gain greater than 4 dBi and efficiency above 80% are achieved. Finally, the bending analysis of the proposed flexible MIMO antenna along the X- and Y- directions shows good performances in terms of scattering parameters, 3 dB ARBW, and MIMO diversity parameters.

Idioma originalInglés
Páginas (desde-hasta)128132-128150
Número de páginas19
PublicaciónIEEE Access
Volumen10
DOI
EstadoPublicada - 2022

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