Metamaterials in Application to Improve Antenna Parameters

Abstract

In recent years, the demand for miniaturization and integration of many functions of telecommunication equipment is of great interest, especially devices that are widely used in life such as mobile communication systems, smart phones, handheld tablets, GPS receivers, wireless Internet devices, etc. To satisfy this requirement, the mobile device components must be compact and capable of multifunction, multifrequency band operation. An antenna is one of them; it means that it must be conformal to the body of device, reduced in size, and capable to operating at multiple frequencies of mobile communication systems that have been operating on one, so-called smart device. Nowadays, there are many technical solutions applied in the antenna construction to satisfy of those requirements. There are microstrip antenna technology miniaturized by means of high-permittivity dielectric substrate, using shorting wall, shorting pins, some deformation, as the fractal geometry is, and others. However, these methods have disadvantage such as narrow bandwidth and low gain. A new solution that is of great interest to designers is the use of electromagnetic metamaterials for antenna design. The use of metamaterials in antenna design not only dramatically reduces the size of the antenna but can also improve other antenna parameters such as enhancing bandwidth, increasing gain, or generating multiband frequencies of antennas operation.

Millimeter‐wave microstrip patch antenna using vertically coupled split ring metaplate for gain enhancement

“…The MPA with metamaterial achieves dual band because the resonance frequency of the patch and the metamaterial is different. By careful optimization of the metamaterial height, the neighboring resonance is overlapped with the patch resonance to achieve a wideband operation . Hence, when VCSRM (metamaterial) is stacked at the height ( h = 16 mm) for MPA, realizing a wide‐band operation.…”

“…By careful optimization of the metamaterial height, the neighboring resonance is overlapped with the patch resonance to achieve a wideband operation. [20][21][22] Hence, when VCSRM (metamaterial) is stacked at the height (h = 16 mm) for MPA, realizing a wide-band operation. For detailed analysis, the E-field distribution of xz-plane and yz-plane for different height of the VCSRM from MPA is simulated at 28 GHz and are plotted in Figures 3A,B.…”

A Multiband Antenna Stacked with Novel Metamaterial SCSRR and CSSRR for WiMAX/WLAN Applications

“…Metamaterials are mainly used to enhance the system performance and antenna parameters such as gain, bandwidth, efficiency, and return loss. Additionally, these artificially created structures also find applications in microwave and terahertz to construct devices such as integrated sensors, filters, and more [ 9 , 10 ]. The use of metamaterial antenna in improving the performance of the antenna is continuing to evolve rapidly in the present times [ 11 , 12 , 13 ].…”

A Dual-Band Metasurface Reflector Using Ring Resonator With Interdigital Capacitor

“…The normal materials have properties of doublepositive medium but the metamaterial can make many properties to control the electromagnetic behavior. Most of the metamaterial structures have an arrangement in 3D that is complicated and difficult to design and implement [5]- [7]. It has appeared that the metamaterial can be spilled in many artificial materials for support various applications [8]- [12].…”