Pdf the effect of conductor line to meander line antenna. A novel meander line microstrip logperiodic dipole. Design of meanderline antennas for radio frequency. However, the good news is that experimenting with homemade antennas is one of the most accessible and enjoyable aspects of amateur radio. Sometimes you get sick of reading things on the internet, and want a comprehensive antenna book to read. The effect is basically just a means to add more distributed capacitance and inductance in a somewhat unconventional manner. The second implanted antenna design considered is a serpentine antenna or a meander line antenna which substantially has the greater length in a specific surface area. Wood in the past few years, the concept of creating microwave antennas using microstrip has attracted increasing attention and viable practical designs are now emerging. It has been applied for tracking of products, luggage, books, and animals. In a discipline that has experienced vast technological changes, this text offers the most recent look at all the necessary topics. For a given cylinder radius, use the cylinder2strip utility function to calculate the equivalent width. An antenna is a device that provides a transition between electric currents on a conductor and electromagnetic waves in space. Meander line antenna is the most usage of antenna that use in design of these applications.
A meander is a shortened monopole or dipole antenna, bandwidth according to theory and efficiency practically decreases with size. The proposed antenna consists of a microstripfeed line of length l f and width w f on the top surface of the substrate and a meander line connected to the ground plane on the bottom of the substrate. The theoretically perfect antenna can never be built because theory itself is not perfect. According to the theory, this purely radiated q of an ideal antenna has a theoretical minimum, which depends only on the antenna size relative to the wavelength. In this study, a slant polariser design for directional antennas and antenna arrays is proposed. Design of meander line antenna for wearable applications ieee. Pdf meander line antennas parameters enhancement for. A new planar broadband antenna based on meandered line loops. Meanderline antenna is a truly transformation of monopole antenna. Pdf the meander line antennas mla are electrically small antennas that pose. A method for calculating the resonant frequency of meanderline. The proposed mpsa was designed by etching the mls along the radiating edge of the patch antenna, and it enhanced the relative permittivity sensitivity with an additional effect of miniaturization in the patch size by increasing the slot length.
The slot antenna can be considered as a loaded version of the inf antenna. The influence of the meander part of the antenna is similar to a load and the meander line sections are considered as shortedterminated transmission lines as shown in. But if i could keep only one book, i would definitely choose balanis because, in my nonexpert opinion, it is more coherent, more systematic, and has a stronger emphasis on principles. Pdf design and simulation of meander line antenna for lte.
Ieee transactions on microwave theory and techniques, vol. Design of meander line antenna for operating frequency of. Meander line dipole antennas mda are useful as radio frequency identification rfid tag antennas because of their relatively high radiation. A novel microstrip meanderline antenna with a very high. Meander line antenna mla is the most usage of antenna that use in lte. Previous studies have addressed the design classic meander line 2. Meanwhile, meander line antenna has been proposed in 7, 8 and 18 to achieve a size reduction in the antenna instead of having the long vertical microstrip feeding line. He is a fellow of the ieee and served as president of the ieee antennas and propagation society in 1992. An optimized circuit in plastic meander line antenna for 2. Fixed conductor line length c2 and conductor line width. The compatibility of microstrip antennas with integrated electronics is another great advantage.
Fractal antennas are discussed in small antennas volakis, et al, c 2010 mcgrawhill as a special case of the more general meander line antenna. He is coauthor of the textbook antenna theory and design, john wiley, 1981 and 1998, and author of polarization in electromagnetic systems, artech house, 1993. In 1952, schelkunoff published the book advanced antenna theory, which gave a comprehensive analysis of the asymmetric biconical dipole in which the angles and lengths of both cones are arbitrary. Meander line antennas mla are an interesting class of resonant antennas and they have been widely studied in order to reduce the size of the radiating elements in wire antennas. Oblique incidence design of meander line polarizers for dielectric lens antennas by m. Paper titled meander line slotloaded highsensitivity microstrip patch sensor antenna for permittivity measurement is a good paper for readers and new researchers. A transmitting antenna transforms electric currents into radio waves and a receiving antenna transforms an electromagnetic field back into electric current. Ieee international conference on recent advances in microwave theory and. The design of meander line antenna is a set of horizontal and vertical lines. Barros florida international university, 1991 miami, florida professor tadeusz babij, major professor the mininumerical electromagnetic code mininec program, a pccompatible version of the powerful nec program, is used to. Therefore, there is an issue of optimization in determining the antenna parameters for best performance. This book is a classic, and i mean it goes back to 1939 before people even knew antennas existed. Antenna design based on meander line technique to be applied. Design, fabrication, and characterization of a dual.
Jul, 20 the significance of the current vector alignment in establishing the resonant frequency of a meandering line antenna was reported in cases of planar configurations s. Rfid tag antenna has been designed, based on uniform meander line technique, the designed prototype antenna, meets the fundamental resonance frequency, input impedance requirement, an appropriate geometry of the achieved radiation pattern, and a read write range suitable. Design and analysis of a folded meander dipole antenna. In an ideal ohmiclossfree case, all the rf energy is radiated, and the q is determined purely by the radiation loss.
Spherical meander dipole with optimum filling configuration. The antenna is center fed and it is symmetric about its origin. The antenna is fed from a coaxial line unbalanced feed located near the antenna centre. Design and practice of small antennas i chapter 7 modern. The foltz drawing pin like antenna from 1998 size 0. The polariser consists of five layers that are formed by metallic strips with different angular orientations on each layer.
Consider the microstrip antenna shown in figure 1, fed by a microstrip transmission line. First, the modal analysis of the microstripfeed line and meander structure has been studied, separately. In meander line antenna the size of the dipole at given frequency is reduced by a factor that is proportional to the number of turns. The investigation has been done for different type of feeding and with and without conductor line. Meander line antennas mla meander line antennas have been applied to various small wireless systems such as mobile phones, digital tv receivers, rfid, and so forth, as the antennas can be easily and more flexibly constituted in planar structure than simple wire types. When it is moved to the slot center or open end of the inf antenna, the impedance. Weve got a section of the gallery set aside for meander book. Meander line technology allows designing antennas with a small size and provides wideband performance 1. The proposed structure consist of rectangular meander line on radiating.
The adjacent horizontal segments of the meander line antenna have opposite phase. Meanderline monopole antenna with compact ground plane for a. The coupling element and meander line antenna affect size of antenna and radiation efficiency in antenna structure, it has been introduced in background 36. This paper presents a design, simulation, implementation and measurement of a novel microstrip meander patch antenna for the application of sensor networks. The parameters of the meander line antenna, which is considered in this paper, are horizontal length h, vertical length v, and the number of turns n. A meander line antenna optimizes the size for narrower bandwidths of the order 10%. Lina and choo planar spirals in size ratios range from 0. The gain of these antennas is between the ranges between 8dbi to 20dbi.
The antenna without a matching circuit covers the uhf band frequency 405425 mhz. Antenna design based on meander line technique to be. Electrically small antenna theory was first introduced by wheeler 1. Dipole antennas dipole, vee, folded, meander, triangular bowtie, rounded bowtie. This is a good book for practicing engineers and amateurs, as it attempts to give the theory and hands on antenna projects.
Meander line antenna with artificial magnetic conductor. Antennas and antenna arrays design and analysis with. An antenna includes one or more conductive elements for acting as radiating antenna elements, and a slow wave meander line adapted to couple electrical signals between the conductive elements, wherein the meander line has an effective electrical length which affects the electrical length and operating characteristics of the antenna. Every ham radio antenna is full of inevitable compromises. The study of different impedance meander line for planar. Pier b online oblique incidence design of meanderline. Basic antennas is a comprehensive introduction to antennas basic concepts, practical designs, and details of easytobuild antennas. New material includes smart antennas and fractal antennas, along with the latest applications in wireless. In this paper, we use the optimum sphere filling methods to study meander line spherical dipolemonopole antennas. When the feed point is moved to the shortcircuited end of the slot or inf antenna, the impedance decreases. Low bandwidth of the classic meander line antennas is a problem 3, as the classic meander line antenna is one of the mi. According to the transmission line theory, a meander line section shown infigure 1 can be characterized as a shortcircuited transmission line.
New coverage of microstrip antennas provides information essential to a wide variety of practical designs of rectangular and circular. Design and analysis of meander microstrip antenna at. The dimension of the microstrip chip antenna is 15 mm times 15 mm times 2 mm. The 3d view for gain of meander line antenna is also shown in fig.
The shorted patch antenna has a wider bandwidth than the thin line type due to the. The design of an effective meander line antenna for rfid purposes requires balancing geometrical characteristics with the microchip impedance. You ll learn how to make antennas that really work. Design and analysis of a broadband electrically small. An online community for art stampers and scrapbookers. The first resonance of meander dipole antenna is at 200 mhz. This work investigates the insertion of the cpw elements in a compact uhf rfid meanderline antenna. These are preliminary notes, intended only for distribution among the participants. Viewing the rubber duck as a 3d meander line using a helix, its easy to see that. The design of meander line elements of the meander line antenna is shown in fig. The dipolemeander class creates a meander dipole antenna with four dipoles. The transmission line current neither contributes much to the radiated power nor produce losses. A meanderline gridarray antenna specified by an areareduction factor. A method to design planar multilayer meander line polarizers is given.
A novel multiband planar invertedf antenna with meander line and slots applied on the radiating patch has been introduced. The meander type radiating patch is constructed on the upper layer of the 2 mm height substrate with 0. The fractal koch curve antenna approaches the limit. In this paper, the meander line antenna mla have been designed to operate at 2. When choosing or building an amateur radio antenna, the most common compromises you have to make will fall in the following categories. Empirical relation for designing the meander line antenna.
Segmentation and desegmentation methods for microstrip antenna design. Try this technique, then upload your artwork to the gallery. The meander line structure has practically been employed with modified versions such as an asymmetric dipole for twofrequency bands, a composite with a line or a slot for multiband operation, a horizontal element of an ifa invertedf antenna, and so forth. Antennas 101 28 useful references and books arrl publications antenna book, basic antennas compendium and classics series rsgb publications practical wire antennas and hf antennas for all locations cq communications sevicks and maxwells books on xmsn lines, baluns vertical handbook, all about quads 20. Pdf design and simulation of meander line antenna for.
Balanis the discipline of antenna theory has experienced vast technological changes. Kraus this text is for the course on antennas offered to the seniorgraduate level by most electrical engineering departments. A meander line antenna can be realized by bending the conventional linear monopole antenna to decrease the size of antenna 5. Analysis and design of meander line dipole antennas. Based on the 1980 text, microstrip antennas, this volume offers information on designing any type of microstrip antenna. It will also appeal to practicing engineers working on antenna development. Design and analysis of a folded meander dipole antenna using. Design of the compact uhf rfid meanderline antenna loaded. The gain of the antenna is efficient for meander line antenna to operate well at 2. In addition to addressing essential microchip antenna theory, the authors highlight current design and engineering practices, emphasizing pressing issues such as broadbanding, circular polarization and active microstrip antennas in particular. Antennas and antenna arrays design and analysis with matlab stefano olivieri academia group. Design and analysis of meander microstrip antenna at wireless. A more compact design of a meander line antenna was designed to operate at 2.
An invertedf antenna is a type of antenna used in wireless communication. The geometry of the proposed electrically small antenna is illustrated in fig. The ultimate reference for amateur radio antennas, transmission lines and propagation. The antenna q is determined by the ohmic loss and radiated loss. This paper proposes an electrically two type of smallsize antenna that is based on the meander antenna structure that. Two different designs of meander line antenna are investigated, without conductor line and with conductor line. This work investigates the insertion of the cpw elements in a compact uhf rfid meander line antenna. Sold by textbookamazing and ships from amazon fulfillment. The proposed antenna employs meander line technology and matched loads. Design of meander line antenna for operating frequency of 2. I have two standard textbooks on antennas, namely, antenna theory by balanis and antennas by kraus both third edition. Design of slant polariser for directional antennas and.
A highsensitivity microstrip patch sensor antenna mpsa loaded with a meander line slot mls is proposed for the measurement of relative permittivity. Since no ground plane is underneath meander line section as shown in figure 2, it acts as a shortcircuited coplanar strip cps structure. This inductance is important because electrically small antennas can have a signi. Pdf design of meandered pifa antenna for wireless application. A sample of meander line dipole antenna with approximate representation of the instantaneous current distribution. The text explains both the basic theory of antennas and its application to practical designs. Model the antenna together with signal processing algorithms. In principle, microstrip antennas are thin planar configurations that are leightweight, low cost, easy to manufacture and can be made conformal with the surfaces of vehicles, missiles etc. A simple analytic formula, found in the literature for calculating the resonant frequency of a meander line dipole antenna mda in free space from its. In our case, for the purpose of reducing the size of transponder, a meander line antenna mla is an attractive choice. The size of the implanted serpentine antenna length of. A novel meander line microstrip logperiodic dipole antenna for dualpolarized radar systems lizhong song1, yuming nie2,andjunwang1, abstracta novel logperiodic dipole antenna for dualpolarized radar systems is presented.
A good book on antenna theory would look nice on your bookshelf. This book will provide a foundation in antenna theory and design necessary for anyone undertaking more advanced topics such as those presented in the arrl. A novel meander line microstrip logperiodic dipole antenna. In this letter, a packaged compact meanderline monopole antenna for bluetooth communications, manufactured in lowdensity. The success of the three previous editions of practical antenna handbook has been most gratifying. The patch is of length l, width w, and sitting on top of a substrate some dielectric circuit board of thickness h with permittivity. The radiation pattern of the meander line antenna was shown in fig. Therefore, in our work, we make a study on the meanderline antenna. The performance of each antenna is evaluated based on return loss, operational bandwidth, and radiation pattern characteristics. The influence of the meander part of the antenna is similar to a load and the meander line sections are considered as shortedterminated transmission lines as shown in figure 3. Sep 19, 2017 on this video, we talk about our meander uhf cb antenna range and the patented technology inside which makes them so good. This paper presents optimization problem formulations to design meander line antennas for passive uhf radio frequency identification tags based on given specifications of input impedance, frequency range, and geometric constraints. The latest resource for the study of antenna theory.
Some antennas have more than others as we will see here. Another practical handbook is the arrl antenna book. Experimental results and validation todetermine if thedesign in fig. Apr 30, 2018 meander line antenna, meander line antenna theory, meander line antenna wiki, meander line antenna design equations, meander line antenna meander line antenna basics. Design meander line antenna basic calculation for 2. However, the location where the cpw elements are connected in the meander line antenna can decrease its gain. The arrows on the antenna represent the current flow direction and the number of the arrows illustrates the magnitude of the current distribution. Ictpituursi school on wireless networking for development the abdus salam international centre for theoretical physics. It shows that the use of the cpw elements contributes to decrease the overall antenna area. Spiral inductors are much more efficient but require an air bridge to connect inner end of an inductor. Cost for a commercially made antenna or cost of parts if homemade.
Meander line antenna mla is electrically small antenna which have been designed to operate at 2. Before any practical design could be accomplished, it was necessa. The electrical length and operating mode of the antenna may. That assumption proved to be correct as i have received letters from a wide variety of people. The geometry detail of the implanted serpentine antenna is shown in figure 9a.
Using multiparameter optimization, various meander line antennas were designed for the. It has been applied for tracking of products, luggage, books. The design of an effective meanderline antenna for rfid purposes requires. Patches of current are in phase with the four vertical high current radiating sections on the meander line. In this application, there is a need for directive transponders to select properly the target tag, which in turn must be ideally isotropic. The patch antenna, microstrip transmission line and ground plane are made of high conductivity metal typically copper. The behaviour is more or less similar to a coil loaded wire antenna, but the inductance is distributed. What is meander line antenna meander line patch antenna.
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