NDLI: Miniaturized Planar-Patch Antenna Based on Metamaterial L- shaped Unit-Cells for Broadband Portable Microwave Devices and Multiband Wireless Communication Systems

Content Provider	Semantic Scholar
Author	Alibakhshikenari, Mohammad Virdee, Bal Singh Ali, Abdul Manaf Limiti, Ernesto
Copyright Year	2018
Abstract	This paper describes the design of a metamaterial planar antenna for multi-octave band operation. The metamaterial unit-cell comprises L-shaped slit which is etched inside a rectangular patch with grounded inductive spiral. The slit essentially behaves as a series left-handed capacitance and the spiral as a shunt left-handed inductance. The antenna was modeled and optimized for impedance bandwidth, gain and efficiency performance using commercial 3D full-wave electromagnetic simulation tools. The antenna has a measured impedance bandwidth of 6.02 GHz for S11 < -10 dB. This corresponds to a fractional bandwidth of 172.49 %, which is higher than multiband planar antennas reported to date. The antenna has a maximum gain and efficiency performance of 3.7 dBi and 73 %, respectively, at 3.25 GHz. The physical footprint of the antenna is comparable to other wideband planar antennas reported to date. The overall size of the antenna is 0.037λ0 × 0.027λ0 × 0.002λ0 and 0.25λ0 × 0.18λ0 × 0.017λ0, where λ0 is free-space wavelength at 0.48 and 3.25 GHz, respectively.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://repository.londonmet.ac.uk/1371/1/IET%20MAP%20Paper_Final.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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