مقاله انگلیسی  (بدون ترجمه)

 

Miniature CRLH-based ultra wideband antenna with gain enhancement for wireless communication applications

 

Abstract

A novel miniaturized ultra wideband (UWB) antenna based on composite right/left-handed (CRLH) metamaterial unit cells for modern wireless communication applications is presented. The physical size of the small and compact antenna is 15×7.87×1.6 mm3 or0.15λo×0.07λo×0.01λo in terms of the free-space wavelength at 3 GHz. The proposed antenna covers an impedance bandwidth of 3–10.6 GHz, which is equivalent to a fractional bandwidth of 111%. The gain and efficiency of the antenna are greater than 2.89 dBi and 38.54%, respectively, with a peak gain of 9.41 dBi and a peak efficiency of 99.93%. The characteristics of the antenna were validated with measured results obtained from a fabricated prototype to establish the proof of concept.

Keywords: 

Miniaturized antenna;  Ultra wideband (UWB) antenna;  Composite right/left-handed transmission line (CRLH-TL);  Metamaterial (MTM); Wireless communications

 

A novel miniaturized ultra wideband (UWB) antenna based on composite right/left-handed (CRLH) metamaterial unit cells for modern wireless communication applications is presented. The physical size of the small and compact antenna is 15×7.87×1.6 mm³ or0.15λ_o×0.07λ_o×0.01λ_o$\mathrm{}{}_{}\mathrm{}{}_{}\mathrm{}{}_{}$ in terms of the free-space wavelength at 3 GHz. The proposed antenna covers an impedance bandwidth of 3–10.6 GHz, which is equivalent to a fractional bandwidth of 111%. The gain and efficiency of the antenna are greater than 2.89 dBi and 38.54%, respectively, with a peak gain of 9.41 dBi and a peak efficiency of 99.93%. The characteristics of the antenna were validated with measured results obtained from a fabricated prototype to establish the proof of concept.

Keywords

• Miniaturized antenna; 
• Ultra wideband (UWB) antenna; 
• Composite right/left-handed transmission line (CRLH-TL); 
• Metamaterial (MTM); 
• Wireless communications

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