Pdf miniaturized rectangular patch antenna loaded with. Their purpose, as with any electromagnetic antenna, is to launch energy into free space. The reduced resonant frequency implies an electrically small size. The loading of metamaterial shows a radial size reduction of 56. In this the length of srr is optimized so that the loaded antenna resonant at a frequency that lies in frequency regime in which the isolated srr shows the metamaterial properties. The unloaded rectangular microstrip patch antenna resonates at 23 ghz, whereas after loading it by metamaterial, the same antenna resonates at 9. Electrically small rectangular microstrip patch antenna. By surrounding an electrically small antenna in a metamaterial environment, such as an electrically small electric dipole. The eigenmode dispersion simulations are performed indicating the left handed metamaterial characteristics and are tunable with substrate permittivity. The proposed antenna is manufactured on the fr4 substrate and is simulated and optimized using high frequency simulation system hfss. In this composition, the rectangular microstrip patch antenna is loaded with planar metamaterial square srrs. Metamaterial loaded dual band microstrip patch antenna.
That formulation has allowed us deriving the necessary conditions in. Electrically small metamaterialbased antennas have we. The rectangular microstrip patch antenna is magnetically coupled to the mi waveguide. This type of antenna had its first intense development in the.
Various antenna parameters such as s11, vswr, bandwidth, gain, directivity and radiation efficiency have been obtained for the circular disc patch antenna, circular disc patch antenna loaded with the metamaterial, circular disc patch antenna loaded with an array of metamaterial and are compared. This paper presents a new electrically small rectangular microstrip patch antenna loaded with metamaterial multiple split ring resonator msrr. When designing a passive rfid tag, it is clear that the antenna is a major component of the overall size 6. A dual layer periodically patterned metamaterial inspired antenna on a low cost fr4 substrate is designed, simulated, fabricated, and tested. But the loading of patches give rise to the cross polarization components and.
Abstract in this paper, authors present an optimized reconfigurable electrically small planar microstrip patch antenna loaded with square shaped split ring resonator metamaterial with microsplits. Attntion shold be give to selecting antenna topologies that are compatible with advanced composite technologies that will be used for future naval aircraft. Pdf metamaterial based circular disc patch antenna. Miniaturization, metamaterial, microstrip patch antenna, double negative property. In this the length of srr is optimized so that the loaded antenna resonant at a frequency that lies in frequency regime. Electrically small microstrip patch antenna loaded with. For example, resonant conditions for strongly subwavelength patch antennas, or possibilities to overcome the small antenna q. Miniaturized microstrip patch antennas loaded with metamaterial are presented in 45. Antenna arrays emulate metamaterialbased carpet cloak. The proposed antenna with uslot and csrr enhanced the matching upto37. Metamaterial products antenna design, acoustic cloaking and. Antenna arrays emulate metamaterialbased carpet cloak over a wide angular and frequency bandwidth abstract. Jan, 2016 we present a true metasurface antenna based on electrically small resonators.
When loaded with planar mi waveguide, its resonant frequency is reduced to 9. School of electronic engineering and computer science, queen mary, university of london, london e1 4ns, u. Mar 05, 2010 5 metamaterials that make matter invisible, silent or blindingly fast. Cearl computational electromagnetics and antennas research. Some application examples for this purpose are metamaterial based efficient esas, 10 electrically small splitring resonator antennas, 11 and electrically small patch antenna loaded with. The international journal for computation and mathematics in electrical and electronic engineering on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Sketch and geometrical structure of ground view of circular microstrip patch antenna with csrr. The effect of mutual inductance on the resonant frequency, bandwidth, gain, and size of metamaterial loaded electrically small microstrip patch antenna is reported in 12. In this paper, the authors present a new planar metamaterial loaded electrically small microstrip patch antenna. In this paper the design, fabrication, and testing of a miniaturized rectangular microstrip patch antenna loaded with dng metamaterials is reported. Miniaturization of microstrip patch antenna using metamaterial. Novel design of a dual band microstrip circular patch antenna loaded with eng. Uwb metamaterialloaded antenna for cband applications.
Improved design of celc metaresonators for bandwidth. Citeseerx document details isaac councill, lee giles, pradeep teregowda. These antennas have various advantages such as small volume, easy to integrate, supports both circular. Frequency switching of electrically small patch antenna using. A novel metamaterialinspired patch antenna is proposed, wherein a 2segment srr labyrinth metamaterial is embedded inside the antenna substrate. Metamaterial inspired microstrip antenna investigations using. For example, resonant conditions for strongly subwavelength patch antennas, or possibilities to overcome the smallantenna q. Here we present an entirely planar metamaterial based electrically. Although the entire matching networkantenna system is not electrically small, the end result is an ef. Based on these design algorithms, at first a reduced size triple band circular patch antenna loaded with mng metamaterial has been shown where around 35% size reduction is achievable.
A rectangular miniaturized patch antenna loaded by new metamaterial unit cells, which operate as munegative medium, is proposed. Various antenna parameters such as s11, vswr, bandwidth, gain, directivity and radiation efficiency have been obtained for the circular disc patch antenna, circular disc patch antenna loaded with the metamaterial, circular disc patch antenna loaded. However, in this paper, we have indicated a direction towards the reallife implementation of possible miniaturized rectangular patch antennas partially loaded with mng metamaterial. Metamaterial based circular disc patch antenna miniaturization. Design and simulation of rectangular microstrip patch. The unit cell is made of a spiral and three wires printed on a. A metamaterial antenna behaves as if it were much larger than its actual size, because its novel structure stores and reradiates energy. Sbir navy metamaterialbased electrically small antenna. Design of square split ring resonator shaped metamaterial. First, we demonstrate a series of 3d broadband, low loss, dual polarization, and highdirectivity planar lens. Novel dual band microstrip circular patch antennas loaded. At different bands on a single device, multiband microstrip patch antenna is.
Microstrip patch antenna design using artificial material loadings i. We present the concept and the design of an antenna based device for restoring the reflection from a ground plane over a broad incidence angular range, when an arbitrarily large object is placed on it. Electrically small circular patch antennas loaded with single layer metamaterials. A metamaterial antenna is made by loading the metamaterial structure over the substrate. Optimized reconfigurable electrically small planar. The metamaterial unit cell is composed of an interdigital capacitor and a complementary splitring resonator. Metamaterial inspired electrically small patch antenna.
Reduced and conventional size multiband circular patch. In the present work, a metamaterialinspired antenna is. The evolution of these designs clearly shows that the hshaped patch and mushroom meta substrate enable a patch antenna resonating at a much lower frequency. A miniature hshaped patch antenna loaded with mushroom. The unloaded rectangular microstrip patch antenna resonates at 14. The metamaterial is composed of two nested spiral strips and a single straight strip which are etched on two sides of a 5. Introduction microstrip patch antenna has been very popular due to their small size, light weight, low profile, less cost. The mi waveguide consists of two planar metamaterial split squared ring resonators ssrrs placed in between two microstrip lines. Pdf hybrid mode wideband patch antenna loaded with a planar. Rowlings novels, but can such a device be practically realized, at least in some limited frequency range. Apart from these advantages they also have various disadvantages like narrow band w idth, less gain etc.
It has always been desired to reduce the size of the antenna while keeping the remaining parameters same, this helps us using the small antenna at lower frequencies. A wideband patch antenna loaded with a planar metamaterial unit cell is proposed. The proposed antenna also satisfies the condition of chu limit for being electrically small antenna with appreciable return loss and gain of 7. The backward wave propagation takes place through this structure. Antenna arrays emulate metamaterial based carpet cloak over a wide angular and frequency bandwidth abstract. Index termshybrid mode, metamaterials, patch antennas, wideband. In particular the complementary split ring resonator which establishes a negative permittivity at resonance computer simulation technolog15. Electrically small rectangular patch antenna with slot for. This is because it is difficult to attain an inductive input reactance and a suitable gain of an electrically small antenna. Metamaterial embedded wearable rectangular microstrip patch. Electrically small antennas loaded with metamaterials for bodycentric wireless communications.
The rectangular microstrip patch antenna is placed at distance, d, in. Electrically small antennas loaded with metamaterials for. In this paper, the authors have presented a reduced size metamaterial loaded circular microstrip patch antenna. Microstrip patch antenna design using artificial material. Geotextile based metamaterial loaded wearable microstrip patch. This paper presents an indigenous lowcost metamaterial embedded wearable rectangular microstrip patch antenna using polyester substrate for ieee 802. The same metamaterial unit cell structure is utilized to fabricate a metascreen. The operation of such a radiative component has been predicted in alu et al. Conventional antennas that are very small compared to the wavelength reflect most of the signal back to the source. We present the concept and the design of an antenna based device for restoring the reflection from a ground plane over a broad incidence angular range, when an arbitrarily large object is.
In the present work, complementary split ring resonator is loaded in the ground plane of circular microstrip patch antenna is. Dec, 2010 watch how the invisibility cloak nearly matches the direct microwave power between two antennasthe cloak covers the obstacle and slipstreams the microwaves to the other side. There are microstrip antenna technology miniaturized by means of. Metamaterials in application to improve antenna parameters. Under unloaded conditions, the conventional patch antenna array resonates at ieee 802. Smith, metamaterial electromagnetic cloak at microwave frequencies. Nov 11, 20 new invisibility cloak combines metamaterials and fancy electronics to be thinner, lighter, more invisible by sebastian anthony on november 11, 20 at 12. Design and simulation of rectangular microstrip patch antenna loaded with metamaterial structure. Pdf effect of presence of human body on antenna gain.
Srrloaded metamaterialinspired electricallysmall monopole. The meta material spherical shell can be designed to create a matched resonant antenna system, i. Here h shaped inter connected split ring meta material structures is used to reduce the size of the microstrip patch antenna. Itohcompact circularlypolarized patch antenna loaded with metamaterial structures. Pdf design of multiband microstrip antenna using stepped. The rectangular microstrip patch antenna is loaded with planar metamaterial square spilt ring resonators srrs in three different configurations at a distance of 0.
Itoh, compact circularlypolarized patch antenna loaded with metamaterial structures, ieee trans. A metamaterial paradigm for achieving an efficient, electrically small antenna is. The patch of the antenna can be of any shape such as square, rectangle, circular etc. Metamaterial embedded wearable rectangular microstrip. Undoubtedly, metamaterialinspired theoretical ideas can offer new points of view in the traditional small antenna design. In the case of the plane wave propagation, the electric and magnetic fields are represented as. Metamaterialbased efficient electrically small antennas request. We are studying how metamaterial inspired electrically small resonators may be used as nearfield parasitics to achieve efficient, electrically small, broad bandwidth antennas.
Metamaterial electromagnetic cloak at microwave frequencies. Some application examples for this purpose are metamaterialbased efficient esas, 10 electrically small splitring resonator antennas, 11 and electrically small patch antenna loaded with. Accordingly it is used to achieve significant bandwidth enhancement and analyze the matching and radiation properties of sub wavelength resonant patch antenna filled with doublenegative, double positive and single negative meta material block,quasi static equivalent circuit model for analysis and design of different types of artificial. Electromagnetic cloaking with metamaterials sciencedirect. Design and fabrication of a miniaturized microstrip. The simulation results of the proposed antenna loaded by mm unit. Recently, the authors have reported the planar electrically small microstrip patch antenna loaded with. Electrically small antenna design with manipulated radiation beam.
The idea of a device which makes objects invisible to the eye has a very long history, starting from folklore of many nationalities. The model uses periodic metamaterial structure around the patch in order to suppress the surface wave and thereby enhancing gain of the antenna. Reduced size patch antenna using complementary split ring. Design algorithms for metamaterial loaded circular patch antennas have been developed to achieve size reduction and highly directive multiband property. An electrically small antenna is designed by loading the patch with split ring resonators, but the thickness of the substrate is large, which makes it incompatible in integration with other devices. The metamaterial unit cell is composed of an interdigital capacitor and a complementary splitring resonator csrr slot. Metamaterial antennas are a class of antennas which use metamaterials to increase performance of miniaturized electrically small antenna systems. Calculation of patch antenna the width w of the patch antenna. Asymmetric cpwfed electrically small metamaterial inspired wideband antenna for 3. Experimental verification of metamaterial loaded small.
Special issue on metamaterials lhm at and below the chu limit. A planar magnetoinductive mi waveguide loaded rectangular microstrip patch antenna is presented and discussed. Antenna designs incorporating metamaterials can stepup the antenna s radiated power. Fractal metamaterial wideband invisibility cloak youtube. Metamaterialbased electrically small antenna designed for gsm and ism applications. We present a true metasurface antenna based on electrically small resonators. Ziolkowski, broadband efficient electrically small metamaterialinspired antennas facilitated by active nearfield resonant parasitic. Antenna arrays emulate metamaterialbased carpet cloak over a. A compact microstrip patch antenna using metamaterial. Limitations posed by the metamaterial operational bandwidth and losses can be. The use of metamaterials in antenna design not only dramatically reduces the. This paper focuses on the interaction between two types of antenna slot coupled patch antenna and probe feed patch antenna and human head model at 835mhz. Electrically small metamaterialbased antennas have we seen. However, this class of antenna incorporates metamaterials, which are materials engineered with novel, often microscopic, structures to produce unusual physical.
The simulation results calculated in sar and e field. Unlike conventional array antennas where the distance between adjacent antennas. The resonators are placed on a flat surface and connected to one feed point using corporate feed. Efficient design of electrically small antenna using.
Real experiments on human body and electromagnetic fields is not possible because of it the hfss software has been used to simulate the head model and antenna as an exposure source. Srrloaded metamaterialinspired electricallysmall monopole antenna divya chaturvedi and singaravelu raghavan abstractin this paper, a cpwfed compact metamaterialinspired monopole antenna is proposed for industrial, scienti. Subwavelength, compact, resonant patch antennas loaded. Design and characterization of miniaturized patch antennas loaded. Abstract a small microstrip patch antenna is introduced. Read experimental verification of metamaterial loaded small patch antennas, compel. Electrically small patch antenna loaded with metamaterial. Electrically small metamaterial resonators like split ring resonators srr and. Figure 5 gain for the simple rectangular patch antenna using hfss.
Vandenbosch abstracta circular sector patch antenna loaded with a periodic metamaterial topology is presented. Reconfigurable radiation pattern of planar antenna using. Bandwidth enhancement and size reduction of microstrip. In this the length of srr is optimized so that the loaded antenna. The fundamentals of patch antenna design and performance. Dec 15, 2017 efficient design of electrically small antenna using metamaterials for wireless applications. Abstract this paper presents a new electrically small rectangular microstrip patch antenna loaded with metamaterial multiple split ring resonator msrr. Develop a laboratory demonstration model of the proposed metamaterails based electrically small antenna. 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. Sketch and geometrical structure of patch view of uslot loaded electrically circular microstrip patch antenna.
Patch antennas the fundamentals of patch antenna design and performance by gary breed editorial director m icrostrip patch antennas also just called patch antennas are among the most common antenna types in use today, particularly in the popular frequency range of 1 to 6 ghz. Multiband, frequency reconfigurable, and metamaterial. Miniaturized microwave devices and antennas for wearable. Ziolkowski, fellow, ieee, and aycan erentok abstracta metamaterial paradigm for achieving an ef. The rectangular microstrip patch antenna is loaded by metamaterial using planar square spilt ring resonators srrs. Subwavelength elliptical patch antenna loaded with. S k behera department of electronics and communication engineering. Undoubtedly, metamaterialinspired theoretical ideas can offer new points of view in the traditional smallantenna design. A circular disc patch antenna resonating at dual band frequency with 2.
Microwave metamaterial antennas and other applications. The demand for small, compact, low cost antennas operating at multiple frequencies has increased tremendously over the past years due to the need for reduced antennas in the modern wireless communications and military applications. The antenna was excited with a microstrip zigzag shaped feed line printed on the fr4 dielectric material. We present two kinds of metamaterial lens antennas. A dispersion analysis of the metamaterial unit cell reveals. The specific absorption rate sar can be reduced by placing metamaterial srrs between the antenna and human muscles 16. It is observed that upon incorporation, the bandwidth widens to around 600% and vswr improves by approx. Since antenna integration and miniaturization are two major challenges in mimo systems, we propose a slot loaded electrically small rectangular patch antenna that operates in the 0.
The unloaded rectangular microstrip patch antenna resonates at. New invisibility cloak combines metamaterials and fancy. Using eng metamaterial instead of the conventional dielectric, unconventional tm. Novel electromagnetic metamaterials negative index metamaterials references 1 theoretical formulation for an electrically small microstrip patch antenna loaded with negative index materials by j. A stepped cut at lower corners of the radiating patch and the partial ground plane are used, to achieve the multiband features. Werner 2005 ieee antenna and propagation society international symposium, vol. Electrically compact srrloaded metamaterial inspired quad.