Abstract—Today, wireless communication systems always require antenna with broadband capability, high gain and efficiency which are especially important in satellite communications. With advantages such as high gain and wide bandwidth, array antenna is much more used for different applications. A compact array antenna of 4x4 elements using novel metamaterial structure is proposed in this paper. The array antenna consists of 16 patch elements and a novel metamaterial structure. By using metamaterial structure on the ground plane, bandwidth and gain of array antenna are significantly improved. The array antenna is designed on Roger4350B with thickness of 1.524 mm, εr = 3.66, tanδ = 0.0037 for frequency range from 7.9 to 8.4GHz. The antenna gets a large bandwidth approximately 13.5%, a high gain over 11.2dBi and an efficiency of 87%. The measurement results are compared to simulation

Index Terms—array antenna, microstrip antenna, metamaterial antenna, metamaterial reflective surface

Cite: Vu Van Yem and Nguyen Ngoc Lan, "Gain and Bandwidth Enhacement of Array Antenna Using Novel Metamaterial Structure," Journal of Communications, vol. 13, no. 3, pp. 101-107, 2018. Doi: 10.12720/jcm.13.3.101-107.