Plasma antenna free download as powerpoint presentation. The plasma antenna is an emerging technology that partially or fully utilises ionised gas as the conducting medium instead of metal to create an antenna. Lieberman department of electrical engineering and computer sciences university of california, berkeley, ca 94720 liebermanshortcourse15. Threedimensional model of cylindrical monopole plasma. The key advantages of plasma antennas are that they are highly reconfigurable and can be turned on and off. Antenna parameters of plasma antenna and equivalent metallic copper antenna are studied. Plasma antennas artech house antennas and propagation. A plasma antenna is a rf antenna partially composed of. A plasma antenna is a type of radio antenna currently in development in which plasma is used instead of the metal elements of a traditional antenna. When the gas is electrically charged or ionized to a plasma,it becomes conductive and allowing radio frequency signals to be transmitted or received. Plasma antennas are reconfigurable, stealthy and resistant to. Theoretical and experimental investigation of plasma antenna.
The plasma antennas offer a new solution to new requirements that are imposed on antenna systems with the advancing communication technology and increasing demand on wider frequency bands. Design, simulation and implementation of a preionized. Pdf plasma antennas refer to several antenna concepts that use some ionized medium. Pdf basic features of plasma antennas for applications. When deenergized, the plasma antenna reverts to a dielectric tube that has a small radar scattering cross section.
The value of the resistor should be equal to the wave impedance of the transmission line that created by the antenna wire and the ground under the wire. Experience on plasma antenna technology ieee conference. Further array plasma antenna parameters are also compared with monopole plasma antenna parameters. In order to validate the correctness of this method, we simulate the process of. A plasma antenna is a column of ionized gas in which the free electrons emit, absorb and reflect radio signals just as the free electrons in a metal antenna. References rostrip patch antenna covered by plasma sheath, progress in electromagnetics research, vol. This device is a prototype of an antenna, which uses ionized gas instead of metal to transmit and receive signals, decreasing interference and. N sinhgad college of engineering, solapur abstract the plasma antenna is an emerging technology and is a type of radio antenna currently in development in which plasma is used instead of the metal elements of a traditional antenna. And the iterative equations of maxwell equation are derived. The plasma antenna is an emerging technology and is a type of radio antenna currently in development in which plasma is used instead of the metal elements of. Scientists states that 99% of the universe is covered with plasma. University of california, berkeley plasma a short course on the principles of plasma discharges and materials processing michael a.
Introduction controlling plasma characteristics such as plasma density, plasma potential, electron temperature, and plasma. This paper is aimed to investigate the plasma antenna parameters to help the optimization of plasma antenna dimensions length and radius of plasma antenna. The antenna is designed and works at different frequencies. A new kind of plasma antenna can focus highfrequency radio waves that would dissipate quickly if beamed by conventional arrays.
In this thesis the plasma antennas are investigated for the radar and communication applications. It uses ionized gas instead of metal conducting element of conventional antenna to transmit and receive signals, decreasing interference and boosting the functionality. The study of present paper invoke the array plasma antenna can be applied for steering and controlling the strength of wifi signals as per requirement. M ethods of exciting and confining plasmas are discussed, and the current state of the art in. Research on radiation characteristic of plasma antenna. In addition, by using the dualfrequency icp antennas instead of the singlefrequency antenna, the plasma uniformity was also improved. Pdf plasma antennas driven by 520 khz ac power supply. Plasma antenna is a new and efficient technology that has been introduced in recent years. An investigation on plasma antennas tig rek, recep f. The plasma antenna research team of national space science center has created some techniques to make a practical plasma antenna prototype, it can reach the same antenna gain. To couple electromagnetic signal from the coaxial probe to the plasma column, a. Advantages of the plasma antenna information technology essay. Although plasma antennas have only become practical in recent years, the idea is not new.
There was remaining consistently confusion over the better gas for plasma. In he plasma antenna system there exists two signal circuits, one is excited rf power, the other is the propagation signal transmitting along the antenna, which can be seen in the fig. A frequency reconfigurable dipole antenna based on a silicon radiator is presented. It is an electromagnetic radiator, transducer, sensor and impedance matching device used in systems such as radio broadcasting, broadcast television, radar etc. When gas is not ionized,the antenna element ceases to exit. Besides its wide carrier frequency, the great directivity and controllable antenna shape. Request pdf physical characteristics of plasma antennas this experimental and theoretical study examines the excitation of a plasma antenna using an argon surface wave discharge operating at. Physical characteristics of plasma antennas university of canberra. Plasma antenna technology employs ionized gas enclosed in a tube or other enclosure as the conducting element of an antenna. The vertical length can be 12,500 ft, as it was for the vertical. Pdf a study of plasma antenna parameters with different gases. Also explore the seminar topics paper on plasma antennas with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016. This is a fundamental change from traditional antenna design that generally employs solid metal wires as the conducting element.
In 1919, j hettinger was granted a patent for the concept of a plasma antenna. Plasma facing pfa antenna group politecnico di torino class materialdistribution forbidden 2 ohmicheating the plasma current is driven by a toroidalelectric field induced by transformer action, due to a flux change produced by current passed through the primary coil initial heating in all tokamakscomes from the ohmicheating caused by the. Computational investigation of microstrip antennas in. A plasma antenna is a type of antenna that is currently in development in which plasma is used to replace the metal elements of a normal antenna. An rf antenna which uses plasma element instead of metal conductor is known as plasma antenna. Plasma column antenna is a new technology for uhfvhf communication.
Plasma antenna technology since the discovery of radio frequency rf transmission, antenna design has been an integral part of virtually every. A plasma antenna can be used for both transmission and reception. Such antennas could enable nextgen wifi that allows for super. Through using fdtd method, we study the propagation of electromagnetic wave in free space in stretched coordinate. Pdf in the era of high speed communication and cognitive radio, plasma antenna grown for its beam forming, to hide and fast switching. The plasma antenna is an emerging technology that partially or fully utilizes ionized gas as the conducting medium instead of metal to create an antenna. Scribd is the worlds largest social reading and publishing site. Survey of techniques and the current state of the art by. Plasma antenna technology it employs an ionized gas enclosed in a tube as the conducting element of an antenna. Barro, mohammed himdi, and olivier lafond abstractthis paper presents the performance of cylindrical plasma antenna. Altunkan hizal august 2005, 79 pages the plasma antennas offer a new solution to new requirements that are imposed on antenna systems with the advancing communication technology and increasing. A system for information transmission having a plasma antenna, including an electrodeless plasma tube, and a power source effective to generate an electromagnetic field to cause ionization of material within the tube so as to form the antenna for one or both of either sending or receiving signals, wherein the electromagnetic field is applied to a portion only of the tube.
Plasma antennas plasma antennas is a type of radio antenna currently under development. The plasma antenna uses ionized gas enclosed in tube enclosure as. Plasma characteristics of inductively coupled plasma using. Pdf the experiments described in this work were performed with the aim of introducing a new plasma antenna that was excited by a 520 khz alternating. Study of array plasma antenna parameters aip publishing. Plasma antenna are radio frequency antenna that employ plasma as a guiding medium for electromagnetic radiation. Plasma is on of the advanced technology in semi conducting materials. Introduction plasma antenna is an agile antenna which hides itself from hostile radar in switch o. The study reveals the advantages of a plasma antenna over the conventional antenna in the sense that different antennas can be formed by tuning the operating parameters. Investigating physics of nanosecondpulsed argon plasma discharges for a vlf plasma antenna a dissertation presented to the academic faculty by connie y. Plasma consists of collection of free moving electrons and ions i. The silicon radiator is activated with the aid of highly dense solidstate plasma by injecting carriers into the. Although plasma antennas have only become practical in recent years when. Plasma antenna technology since the discovery of radio frequency rf transmission, antenna design has been an integral part of virtually every communication and radar application.
Plasma antennas seminar report, ppt, pdf for ece students. The key advantages of plasma antennae are that they are highly reconfigurable and can be turned on and off vishnu gautam. The disadvantage is that the plasma antennas require energy to be ionized. Pdf in the era of high speed communication and cognitive radio, plasma antenna grown for its beam forming, to hide and fast switching properties find, read and cite all the research you. Plasma antennas refer to a wide variety of antenna concepts that incorporate some use of an ionized medium. We have presented a qualitative as well as quantitative analysis of the changes of the antenna properties and the reasons behind the important changes. The plasma antenna is an emerging technology and is a type of radio antenna currently in development in which plasma is used instead of the metal elements of a traditional antenna. Plasma antennas could enable nextgen wifi, beaming. A frequency reconfigurable dipole antenna with solidstate. Plasma antenna is a special type of antenna in which metal conducting elements of conventional antenna are replaced by plasma. The inductance and resistance terms of this model can be found by analyzing various plasma parameters.
They can be used for both transmission and reception. Physical characteristics of plasma antennas request pdf. Download plasma antenna seminar reports, abstract, pdf, ppt. Except for theoretical research, creating a prototype with considerable performance as metal antenna is really very difficult. The plasma antenna can be made to appear and disappear in. Elf plasma antenna concept the elf plasma antenna concept uses as a current carrier an ionized column of air, created by one or more lasers, with a length on the order of the vertical electric dipole with or without corona elf antenna. By changing the operating parameters a single plasma antenna plasma column can be transformed into multiple antenna elements striations, which can be treated as a phased array broadside vertical plasma antenna.
Otherwise a disadvantage is that it needs energy to be ionized. Pdf several experiments on plasma antennas are investigated till date. The radiation characteristic of plasma antenna is investigated by using the finitedifference timedomain fdtd approach in this paper. In a similar fashion, the performance of plasma antenna can be increased either by increasing the.
This study summarizes the basic theory behind the operation of plasma antennas based on a survey of patents and technical publications. Plasma antenna basics plasma antenna working,advantages. Plasma antenna dheeraj rajaram madda department of electronics and telecommunication engineering, n. Antenna antenna is a metallic structure used to propagate em wave such that maximum intensity is in intended direction. Explore plasma antennas with free download of seminar report and ppt in pdf and doc format.
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