Miniaturizing a Microstrip Antenna Using Metamaterials and Metasurfaces [Antenna Applications Corner] (original) (raw)
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Miniaturization of antenna using metamaterial loaded with CSRR for wireless applications
Bulletin of Electrical Engineering and Informatics
This paper proposes a compact decagon antenna for wireless applications based on inspired metamaterial (MTM) loaded with a modified complementary split ring resonator (CSRR). A MTM loaded with CSRR is used to achieve a size reduction of 50% when compared to a traditional antenna. The suggested decagon antenna's ground plane has been loaded with CSRR. The antenna was made on an FR4 substrate with a thickness of 1.6 mm and εr=4.4 and has a very small dimension of 0.288 λ x0.272 λ x0.013 λ (where λ represent center frequency at 2.4 GHz). The given antenna has a 90 MHz bandwidth (2.40-2.50 GHz) with a peak gain of 2.36 dB. The presented design is validated by showing simulated results of the S parameter, VSWR, gain, surface current, and radiation pattern. The proposed antenna is well suited for wireless applications.
In this paper we have discussed about different metamaterial structures. Metamaterial structures are artificially designed materials to provide properties that are not readily available in nature. The size minimization & high bandwidth of microstrip antenna plays important role in the development of communication systems. These characteristics can be obtained by the help of this artificial metamaterial structures like split ring resonator (SRR), complementary SRR, Defected ground structures etc. Metamaterial structured microstrip antenna exhibits negative permeability & permittivity which results into enhancement in antenna parameters like return loss, bandwidth, directivity, antenna gain etc. In this paper we have also discussed about different properties of metamaterial structure.
Metamaterial Applications in Modern Antennas
Metamaterials - History, Current State, Applications, and Perspectives [Working Title]
The chapter presents different types of metamaterials, their historical evolution, physical properties, and applications in antennas design. Metamaterials are artificial structures that offer electric and magnetic properties that are not found in nature, such are negative permittivity and negative permeability. These properties are used in antennas design in order to obtain ultrawide bandwidth, high gain, and electrically small structures. Modern wireless mobile communication uses 5G technology and multi-input multi-output (MIMO) antennas, which are based on high-frequency transmission and ultrawide band. Metamaterials are very good candidate for this technology, where miniaturized antennas loaded with metamaterials structures are used. Recently, electromagnetic sensors were used for liquid identification in biological and medical substances based on metamaterials for the sake of high sensitivity and better classification. Different metamaterial types are used in these sensors, depe...
Microwave and Optical Technology Letters, 2008
We present characteristics of microstrip patch antennas on metamaterial substrates loaded with complementary split-ring resonators (CSRRs). The proposed antenna utilizes CSRRs in the ground plane altering the effective medium parameters of the substrate. To characterize the performance of the CSRR loaded microstrip antenna, the metamaterial substrate has been modeled as an effective medium with extracted constitutive parameters. Simulation results were verified by experimental results. The experimental results confirm that the CSRR loaded patch antenna achieves size reduction as well as bandwidth improvement.
Efficient design of electrically small antenna using metamaterials for wireless applications
CSI Transactions on ICT, 2017
In this paper, a simple and efficient approach is presented for the design of a compact CPW fed slot antenna loaded with complementary split ring resonators (CSRRs) and metamaterial (MTM) slab. It has been shown that the fundamental resonant frequency of the conventional slot antenna can be lowered considerably by loading CSRRs and an MTM slab. The MTM slab consists of an array of 1 9 3 single-sided periodic structure of split ring resonator unit cells. The CSRRs are incorporated on both sides of the rectangular slot and the MTM slab is placed below the dielectric substrate of the antenna to achieve miniaturization. About 56.7% miniaturization is attained for the proposed CSRRs and MTM slab loaded antenna in comparison to the conventional antenna. It is also observed that the minimal effect on the co-polarization and crosspolarization is obtained in the case of proposed antenna. The overall antenna size is 0.23 k 0 9 0.23 k 0 9 0.009 k 0 , where k 0 is the free space wavelength. In this proposed antenna a high radiation efficiency of about 84.2% is obtained. Owing to the high efficiency and compact size, the proposed antenna will find broad applications in the field of wireless communication.
Study on Miniaturization of Antenna Using Metamaterials
Metamaterials - History, Current State, Applications, and Perspectives [Working Title]
Metamaterials (MTMs) are artificially built materials intended to give its properties from the internal structure, rather than the chemical composition found in natural materials. Electric permittivity (ε) and magnetic permeability (μ) are the two basic parameters which describe the electromagnetic property of a material or medium. Permittivity describes how a material is affected when it is placed in electric field. And permeability describes how a material is affected in presence of magnetic field. Metamaterials may have either negative permittivity or permeability or both may be negative simultaneously. The concept of metamaterials has additionally been utilized to design different kinds of patches with upgraded performance, such as improved gain and enhanced efficiency. Also, it has been utilized for the scaling down of patches. Two parameters are utilized in the collected works for antennas using metamaterials. We can adjust the refractive index of the metamaterial to positive,...
Design of metamaterial antenna for wireless applications
A multiband compact planar antenna was designed with frequency notched function, the antenna with CPW fed is consist of various microstrip resonators, such as closed ring resonator and SRR, producing some discontinuous resonant bands is suggested. Metamaterial is artificial material that may exhibit electromagnetic (EM) responses not readily found in natural. Presently, it has gained considerable attention since its unique EM characteristics can be advantageous in design of novel EM components and devices. It may be used for making perfect lens or even invisibility cloaks. other examples are that electromagnetic band gap/photonic band gap (EBG/PBG) and artificial magnetic metamaterial have already been used in antennas design, which might be used to open the door to obtain the compact and high performance EM components and devices. Using Agilent Technologies ADS Software, the antenna is designed and simulated for 2.1/3.5/5GHZ UMTS/worldwide interoperability for microwave access (WiMAX)/Wireless LAN (WLAN) application with return loss of more than -10dB. To achieve a very wide bandwidth the rectangular ground planes and the split-ring loops dimensions are tuned. to improve the return loss performance in the required band a tapered transmission line is adopted. Measurement results shows that the proposed UWB antennas have a wide bandwidth from 3.1 to 10.6 GHz. To achieve a very wide bandwidth the rectangular ground planes and the split-ring loops dimensions are tuned.
Metamaterial Based Microstrip Patch Antenna for High Frequency Application
2015
This paper presents the design of metamaterial based microstrip patch antenna for high frequency application. Work is mainly focused on improving the characteristics of microstrip patch antenna. Metamaterials have been intensively researched due to their particular features such as negative permittivity and/or permeability and ultra-refraction phenomenon. To satisfy the demand of commonly used wireless communication systems, an antenna which can operate at higher frequencies and enhanced characteristics are desirable. The arrangement of all elements is done that they provide an improvement into return loss by which we can notice other factors of antenna. The frequency response of a metamaterial can be tailored by varying its characteristics. A new metamaterial structure using square and ring split ring resonator is proposed. Using this metamaterial structure, a microstrip patch antenna is designed with enhanced characteristics such as reduction in return loss from -20 dB to -36 dB w...
A Metamaterial based Microstrip Patch Antenna with Improved Directionality
International Journal for Scientific Research and Development, 2015
This paper focuses on improving the directive properties of a conventional patch antenna by using a known technique of applying metamaterial slab as a cover. The metamaterial under consideration is a modification of Pendry‟s SRR structure and is equivalent to two SRRs connected back to back. The unit cells were arranged in an array configuration, investigation of Sparameters was done for checking the Negative index property. As expected with the use of metamaterial as a cover, directionality of conventional patch antenna improved significantly and the 3 dB beam-width reduced. A conventional patch antenna generally shows 3 dB beam-width of ~80deg while the antenna presented in this paper with the metamaterial shows improved 3dB beam-width of 45 deg.
Progression of Metamaterial for Microstrip Antenna Applications: A Review
Intelligent Technologies and Robotics Intelligent Technologies and Robotics (R0), 2022
This article provides an overview of the evolution of metamaterials (MTM) and all the aspects related to metamaterial development for antenna applications. It will be a useful collection of information for antenna researchers working in metamaterials applications. It gives an insight into the various metamaterial structures utilized along with miniature antenna designs. Different types of design parameters studied by the previous researchers are showcased to understand better perception of the metamaterial usage.