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Ng, C. H. and Devi, K. K. A. and Chakrabarty, C .K. and Norashidah, Md. Din and Kwong, C.F. (2017) Gain enhancement of microstrip patch antenna using low loss negative refractive index metamaterial superstrate. Journal of Telecommunication, Electronic and Computer Engineering, 9 (1). pp. 95-99. ISSN 2180-1843