This paper proposes one-dimensional antenna arrays of the four-element and the eight-element using composite materials. Firstly, the single element is designed to resonate at Zeroth-order using a pair of Double positive (DPS) and Epsilon negative (ENG) materials meta-structured transmission line (MTL). Secondly, three of 1:2 T-Junction power dividers and seven of 1:2 T-Junction power dividers based on micro-strip technology are designed for feeding the four-element and the eight-element array antennas, respectively. Finally, the proposed arrays are optimized using FEM-based simulation to operate at the frequency of 8,5 GHz. | 10 Dang Thi Tu My, Huynh Nguyen Bao Phuong, Tran Thi Huong DESIGN OF ZEROTH-ORDER RESONANCE ANTENNA ARRAY WITH A PAIR OF DPS AND ENG MATERIALS Dang Thi Tu My1, Huynh Nguyen Bao Phuong1, Tran Thi Huong2 Quy Nhon University; dangthitumy@, huynhnguyenbaophuong@ 2 The University of Danang; tranhuong@ 1 Abstract - This paper proposes one-dimensional antenna arrays of the four-element and the eight-element using composite materials. Firstly, the single element is designed to resonate at Zeroth-order using a pair of Double positive (DPS) and Epsilon negative (ENG) materials meta-structured transmission line (MTL). Secondly, three of 1:2 T-Junction power dividers and seven of 1:2 T-Junction power dividers based on micro-strip technology are designed for feeding the four-element and the eight-element array antennas, respectively. Finally, the proposed arrays are optimized using FEM-based simulation to operate at the frequency of 8,5 GHz. The simulated results show that both antenna arrays have Zeroth-order resonance (ZOR) property, in which the four-element array has a bandwidth spreading from to GHz and a maximum gain of dB while the other one of the eight-element array is – GHz and dB, respectively. The proposed array antennas can be used for wireless applications or mobile communications. Key words - Epsilon Negative; Double positive; Metamaterial; Antenna array; Zeroth-Order Resonance. 1. Introduction At present, the demand for compact radiators with high-gain grows rapidly in many fields of application. Several techniques have been proposed in order to squeeze the resonant dimensions of patch radiators while maintaining their other radiation features. The abnormal electric field properties of metamaterials have attracted a lot of attention in recent years for some electromagnetic applications. It is very important to minimize path antenna so that the ENG MTL can have the unique property of an infinite .
