Bandwidth improvement of planar antennas using a single-layer metamaterial substrate for X-band application

Abstract

To prevent far-field radiation characteristics degradation while increasing bandwidth, an attempt has been made to design and fabricate a microstrip antenna. An electromagnetic band gap (EBG) structure, including a layer of a metallic ring on a layer of Rogers 4003C substrate, is used. For a better design, a patch antenna with and without the EBG substrate has been simulated. The results show that the bandwidth can be improved up to 1.6 GHz in X-band by adding the EBG substrate. Furthermore, using this structure, a dual-band antenna was obtained as well. Finally, to validate the simulation results, a comparison has been done between simulation data and experimental results which demonstrate good agreement.

Metamaterials and Their Application in the Performance Enhancement of Reconfigurable Antennas: A Review

“…Since the systems are gradually improving their requirements of wide bandwidths and high data rates, a shift towards utilization of wideband antennas is inevitable [ 26 ]. Owing to this fact, academics and researchers have proposed a number of techniques to enhance bandwidths of antennas [ 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 ].…”

“…In [ 36 , 37 , 38 , 39 , 40 ], a single-layer metamaterial is loaded onto compact size antennas in order to improve the bandwidth. In [ 36 ], a bow-tie antenna is reported with integration of a metamaterial lens for the purpose of bandwidth improvement.…”

“…In addition, they are also used for sensor detections, improving ultrasonic sensors, or many other applications [ 22 , 23 ]. The metamaterials etched on the antenna can improve its performance in terms of bandwidth enhancement [ 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ], gain improvement [ 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 ], efficiency improvement [ 68 , 69 , 70 , 71 ,…”

A High Gain Super Wideband Metamaterial Based Antenna

“…Also, when the proposed is compared with similar antennas, it is found to be compact with just one layer of the metamaterial. In [30], the size of the antenna was 40 × 30 mm which is comparatively large, with a small bandwidth of 8-12 GHz. In [31], an antenna of 60 × 60 mm was designed for 10…”

“…An ultrawideband antenna with three notches has been reported which showed improved characteristics using metamaterial [29]. Various metamaterial based structures like EBG and AMC, are used to get the improvement in gain characteristics of the antenna [30]- [32].…”