This is the talk page for discussing improvements to the metamaterial antenna article. Slotted antenna arrays used with waveguides are a popular antenna in navigation, radar and other highfrequency systems. Nov 28, 2018 metamaterial arrays have shown to be a technology that can reduce swap and potentially maintain the same performance as current array technologies. This metamaterial is divided into some rows which are composed of periodic annular slots with different transmission controlled by its dimension. Pdf compact cband slotted waveguide array antenna using. This layout shows the concept of the microstrip antenna with two metamaterial lenses on the left and the spacing of the lenses on the right. A monofilar spiral antenna made of a wire of diameter 2a, with the curved arm section at height h above a conducting ground plane gp defined by the archimedean spiral function. Microstrip line 400 for a phased array metamaterial antenna system. In this paper, we present a new method to reduce the mutual coupling of a microstrip patch antenna array by using modified split ring resonator msrr metamaterial structures. The position of the ssrr array is changed to study the effects on mutual coupling in the antenna array. Low gain is a main disadvantage of small planar antennas, which must be overcome to satisfy transceiver systems overall energetic ling budget. This means the capability to determine whether the em wave is transmitted, reflected, or absorbed.
Miniaturization of microstrip yagi array antenna using metamaterial rhitam datta, tarakeswar shaw, and debasis mitra abstractan approach of miniaturizing planar yagi array using metamaterial is presented in this paper. Pdf investigation and design of xband slotted waveguide. Soft computing techniques for mutual coupling reduction in. The antenna was composed of periodically arranged radiating printed cells which constitute an array that performs as a leaky wave radiating scheme, in which the direction of maximum radiation depends on the propagation constant of the. Reducing mutual coupling in microstrip array antenna using. The term smart adaptive antenna generally refers to any antenna array, terminated in a sophisticated signal processor, which can adjust or adapt its own beam.
Metamaterialengineered antennas university of arizona. Ieee transactions on antennas and propagation 1 sidelobe. The metamaterial lens enhances the gain by 4 db from 5. The challenge is to see if metamaterial arrays can significantly lower swap and meet the technical requirements for ew. Metamaterial array for swap constrained air platforms sbir. Profile natural and metamaterial antennas wiley online. These are the dimensions of the microstrip antenna. Gain enhancement for mimo antenna using metamaterial.
A wide variety of antenna examples are included to facilitate the understanding for general readers. A metamaterial based broadband lowprofile mushroom antenna is presented. Metamaterial antenna arrays for improved uniformity of microwave hyperthermia treatments by d. Metamaterial can be used to overcome disadvantages of patch antenna such as size reduction with acceptable amount of bandwidth and power. Metamaterial antenna arrays for improved uniformity of microwave hyperthermia treatments. This article investigates how to enhance the gain of an edge feed rectangular patch array antenna for 5g application using two novel double negative metamaterial dng. According to one aspect of the subject technology, a metamaterial lens coupled to antenna elements of the antenna array provides an aperture distribution of signals such that grating lobes and scan loss are minimized. An array of single ring ssrr is used as a metamaterial structure, which is placed over the antenna array as shown in figure 5a. Jun 11, 2017 metamaterial antenna meaning metamaterial anten. They are commercializing a product that operates in the ku band 1015 ghz.
Pdf metamaterial antenna arrays for improved uniformity. Some practical difficulties or limitations for the development of metamaterial based small antennas are pointed out and the possible approaches to resolve these problems are also illustrated. Metamaterial assisted antenna array for reduction of. Demonstration of the fractal advantage by adding a slipon fractal metamaterial sleeve to a basic monopole antenna, showing dramatic improvements in. Ieee transactions on antennas and propagation 1 sidelobe canceling for optimization of recon. Abdalla doctor of philosophy, 2009 graduate department of electrical and computer engineering university of toronto abstract this thesis presents the design of radiofrequency rf tunable active inductors tais. In this methodology, metamaterial structures are incorporated in the antenna in place of directors. In this paper, we apply the to approach to the design of a metamaterial radome capable of extending the scanning angle of a phased array antenna. Metamaterial enhances microstrip antenna gain microwaves. Sep 02, 2016 presents recent progress in lowprofile natural and metamaterial antennas. The newly invented metamaterial antenna contributes the best return loss of more than 20 db and 300 mhz bandwidth wider than the conventional patch antenna.
S11 parameter for patch antenna array with metamaterial 4. By leveraging a reactive impedance surface ris metamaterial, this patch antenna design covers a wide bandwidth with high gain, serving a number of different wireless applications. Design of metamaterial based antenna using unit cells a thesis submitted in partial fulfillment of the requrements for the degree of master of technology in telematics and signal processing by jyotisankar kalia, roll no209ec1104 under the guidance of prof. Dual band metamaterial antenna for ltebluetoothwimax system. Us7928900b2 resolution antenna array using metamaterials. Antenna designs incorporating metamaterials can stepup the radiated power of an antenna. The proposed array antenna was designed, simulated, and fabricated on a roger4350b substrate. They have lowloss, high efficiency and radiate linear polarization with low crosspolarization.
In accordance with one aspect of the subject technology, an antenna array for minimizing grating lobes and scan loss is provided. This paper presents an innovative concept of designing smart antenna using metamaterial. Designing superdirective patch antenna array using metamaterial pranshu sharma1, dinesh arora2, hitender gupta3 student fellowship1, assistant professor2, assistant professor3, abstract microstrip patch antenna has certain drawbacks of low gain, narrow band, and surface wave losses. Robust, continuous, and softwaredefined beam pattern control of holographic metamaterial antennas is necessary to realize the potential of these lowpowerconsumption, thin, lightweight, inexpensive antennas for consumer usage of satellite communication. If one metamaterial layer can help microstrip antenna performance, perhaps two layers might provide greater benefits. Under unloaded conditions, the conventional patch antenna array resonates at ieee 802. An emerging technology for realizing largescale antenna arrays of small physical size uses metamaterial radiators instead of conventional ones. Metamaterial antennas are a class of antennas that use metamaterials to improve performance. We are studying how metamaterial inspired electrically small resonators may be used as nearfield parasitics to achieve efficient, electrically small, broad bandwidth antennas. Issn 17518725 wide angle impedance matching metamaterials.
It will then be shown how the metamaterial phaseshifting lines can be used to make compact, broadband antennas and devices, and specific examples of a seriesfed linear antenna array, a wilkinson balun, a 1. Metamaterial antenna arrays for improved uniformity of microwave hyperthermia treatments article pdf available in progress in electromagnetics research 156. First, we demonstrate a series of 3d broadband, low loss, dual polarization, and highdirectivity planar lens. Each of the two or more antenna elements is configured to scan within a field of view. Bandwidth enhancement in patch antenna by metamaterial. Designing superdirective patch antenna array using metamaterial. In this paper, a multiple input multiple output antenna which operates at 5. Us20120176284a1 antenna array with metamaterial lens. Fractal metamaterial antenna monopole demonstration youtube. Pdf annular antenna array metamaterial with sinis bolometers. Pdf metamaterial antenna arrays for improved uniformity of.
The chapter discusses the formation of a tilted cp fan beam using an array of monofilar spiral elements, each element having the antenna characteristics. The authors propose that the anisotropic properties of a metamaterial layer, when designed appropriately, can be employed to achieve impedance matching at a wide contiguous range of phased array antenna transmission angles. In this paper the solution method used is a patch array. Dynamic metasurface antennas for uplink massive mimo. Masud ece department north dakota state university fargo, nd, usa. A metamaterialbased series connected rectangular patch. This includes remotely controlling how an incident electromagnetic wave em wave interacts with a metamaterial. The proposed antenna is formed using an array of mushroom cells and a ground plane, and fed by a microstrip line through a. Ieee transactions on antennas and propagation 2 original no optimization reduced sidelobes unacceptable sidel obes 1st itera tion 2nd itera tion final iteration final optimiza tion fig. Materials that can attain negative permeability allow for properties such as small antenna size, high directivity and tunable frequency. In addition to providing more than 6db gain compared to a conventional microstrip antenna, these metamaterial equipped antenna designs also feature increased bandwidth from 3. Epsilonandmunearzero emnz metamaterial structure inspired uhf antenna for nanosatellite has been proposed in this paper.
Us6958729b1 phased array metamaterial antenna system. We present a complete feedback control approach that enables adaptive control of the radiation pattern for the. The objective of this research is to identify an optimal microwave antenna array for clinical use in hyperthermia treatment of cancer. Overall data rates for the antennas depends on a number of factors like the size and operating frequency of the antenna. The antenna introduced in this paper is a metamaterial based rectangular patch antenna array for uhf rfid readers.
Pdf analysis of metamaterial based microstrip array antenna. In this paper, a novel design of metamaterial is reported for realizing low sidelobe level sll in the antenna array. Metamaterial assisted antenna array for reduction of sidelobe level abstract. The objective of this research is to identify an optimal microwave antenna. A metamaterial mtmbased thin planar lens antenna is proposed for spatial beamforming and multibeam massive multipleinput multipleoutput systems. Design of square split ring resonator shaped metamaterial structure for enhancing the microstrip patch antenna parameters abhishek singh kuswaha, h. Metamaterial inspired cmos tunable microwave integrated circuits for steerable antenna arrays mohamed a. This effort will demonstrate a metamaterial array aperture can meet the swap of 12 x 12, lolbs, erp of 65 dbm, perform electronic beam steering as well as transmit and receive from 1840ghz. Final chapters look at various properties of lowprofile metamaterial based antennas, revealing the strengths and limitations of the metamaterial based straight line antenna metaline antenna, metamaterial based loop antenna metaloop, open metaloop antenna, the effects of counter dualband cp radiation, and more. Microwave metamaterial antennas and other applications.
An antenna array includes at least one transmit array comprising a plurality of metamaterial elements. S k behera department of electronics and communication engineering. An antenna array comprises two or more antenna elements. Metamaterial antenna arrays for improved uniformity of microwave hyperthermia treatments david vrba1, dario b. Typically formed by constructing lattices of simple elements, metamaterials possess electromagnetic properties not found in naturally. Demonstrations showed that metamaterials could enhance an antennas radiated power.
Each rectangular patch array can be connected in series with other array elements to form a travelling wave antenna. An efficient, lowloss, low sidelobe, high dynamic range phased array radar antenna system is disclosed that uses metamaterials, which are manmade composite materials having a negative index of refraction, to create a biconcave lens architecture instead of the aforementioned biconvex lens for focusing the microwaves transmitted by the antenna. Abstract in this work, rectangular microstrip patch antenna rmpa along with metamaterial which has square split ring resonator. A metamaterial based series connected rectangular patch antenna array for uhf rfid readers benjamin d. Metamaterial antenna arrays for improved uniformity of. Gain and bandwidth enhancement of array antenna using a novel. The proposed antenna is composed of two sets of four elements antenna array 2. In each array element, each rectangular patch is connected to.
By using the proposed metamaterial structure on the ground plane, not only the antenna bandwidth was improved, but also the gain of the antenna was increased. Four different positions of the ssrr array are shown from figures 5a to 5d. Miniaturization of microstrip yagi array antenna using. Standard antennas need to be at least half the size of the signal wavelength to operate efficiently. Metamaterialinspired cmos tunable microwave integrated. After designing a unit cell at same frequency 28 ghz to the patch array antenna, we scale the unit cell to 10x5 and 5x4. In addition to using an array antenna, recently the metamaterial is a solution that has been applied in antenna design. Abstract utilization of metamaterial structures has been. A metamaterialbased series connected rectangular patch antenna array for uhf rfid readers benjamin d. It discusses the performance of an array antenna composed of four cp tilted. Transformationopticsbased design of a metamaterial radome. The antenna array further includes at least one nearfield stimulator for inputting electromagnetic signal to the transmit array so that a subwavelength target is illuminated with an electromagnetic wave. This book presents the full range of lowprofile antennas that use novel elements and take advantage of new concepts in antenna implementation, including metamaterials. Osa extremumseeking control of the beam pattern of a.
Current microwave hyperthermia applicators are not well suited for uniform heating of large tissue regions. The proposed antenna is formed using an array of mushroom cells and a ground plane, and fed by a. We present two kinds of metamaterial lens antennas. Nearzero metamaterial inspired uhf antenna for nanosatellite. Enhancing 5g patch array antenna gain using dng metamaterial.
The newest metamaterial antennas radiate as much as 95 percent of an input radio signal. Metamaterials in application to improve antenna parameters. Each of the two or more antenna elements is further configured to transmit or receive a signal. The structure of the antenna is based on a linear array of planar antennas excited by slots. Designing superdirective patch antenna array using. Design of square split ring resonator shaped metamaterial. Metamaterialbased thin planar lens antenna for spatial.
Analysis of metamaterial based microstrip array antenna. Presents recent progress in lowprofile natural and metamaterial antennas this book presents the full range of lowprofile antennas that use novel elements and take advantage of new concepts in antenna implementation, including metamaterials. Pier online metamaterial antenna arrays for improved. Pdf analysis of metamaterial based microstrip array. The annular antenna array metamaterial aaam was designed for a frequency range of 300450 ghz and consists of periodically arranged electrically small rings, each containing two or four sinis. The antenna array consists of a singlelayer mushroom radiating structure and a. Transformationopticsbased design of a metamaterial. A tunable metamaterial is a metamaterial with a variable response to an incident electromagnetic wave.
The antenna array also comprises a metamaterial lens coupled to the two or more antenna elements. For this aim we present a novel 434mhz applicator design based on a metamaterial zeroth order mode resonator, which is used to build larger array con gurations. Metamaterial array for swap constrained air platforms. Multiband antenna array based on double negative metamaterial for multi automotive applications abdulrahman s.