The following material supports the book antenna modeling for beginners. With the rising number of users and limited bandwidth available, operators are trying hard to optimize the network for larger capacity and improved quality coverage. Khaleghi abstracta printed meander line antenna is described with a shaped ground plane and a back coupled rectangular patch. Ben munk has written a book that represents the epitomy of practical understanding. The investigation has been done for different type of feeding and with and without conductor line. A new planar broadband antenna based on meandered line loops. The gain of the antenna is efficient for meander line antenna to operate well at 2.
Experimental results and validation todetermine if thedesign in fig. Using ant colony optimisation to construct meanderline rfid antennas. Antenna design based on meander line technique to be. Antenna theory and microstrip antennas offers a uniquely balanced analysis of antenna fundamentals and microstrip antennas. Introduction in the recent years, there has been rapid growth in the field of wireless communication. In case of meander line if meander spacing is increase resonant frequency decreases. In 5 described the different designs of meander line antenna such as, mla with different thickness of vertical segment. The proposed work presents a microstrip patch antenna with meander line loaded used as a sensor for relative permittivity measurement. This paper proposes an electrically two type of smallsize antenna that is based on the meander antenna structure that. 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. The theoretically perfect antenna can never be built because theory itself is not perfect. A sample of meander line dipole antenna with approximate representation of the instantaneous current distribution.
Internal monopole antenna design for multiband operation and. If the length of the conductor is a certain ratio or multiple of the. This website is designed to present a comprehensive overview of antennas, from design, to measurement and theory. Consider the microstrip antenna shown in figure 1, fed by a microstrip transmission line. 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. Design and analysis of a folded meander dipole antenna. Design of meanderline antennas for radio frequency. The design of an effective meanderline antenna for rfid purposes requires. Vertical meandering approach for antenna size reduction. A highsensitivity microstrip patch sensor antenna mpsa loaded with a meander line slot mls is proposed for the measurement of relative permittivity. The meander arc length is the distance along the thalweg over one meander.
Pdf the meander line antennas mla are electrically small antennas that pose. The line of maximum depth, or channel, is the thalweg or thalweg line. Empirical relation for designing the meander line antenna ieee. The proposed work presents a microstrip patch antenna with meanderlineloaded used as a sensor for relative permittivity measurement. Design and fabrication of an electrically small meander.
Design, fabrication, and characterization of a dual. A small square defected ground structure is introduced to improve the impedance matching of the antenna. The proposed sensor claimed to improve the sensitivity for the relative permittivity measurement ranging from 2. In this paper, we designed a novel compact internal. One of the most important components of rfid systems is the antenna and its design is critical to the utility of such tracking systems. Unnecessarily complicated math is avoided throughout. We will use the empirical equations to come up with a meander line antenna mla that has a resonant frequency of 2. This book discusses finite antenna arrays and how to minimize the radar cross section of these arrays. Design and practice of small antennas i chapter 7 modern. 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. Meander line antenna is a type of printed antenna that can achieves miniaturization in size by embedding a wire structure onto a dielectric substrate.
The compatibility of microstrip antennas with integrated electronics is another great advantage. Abstract acompact, planar, dualband meanderline monopole antenna that operates in frequency range of 2. Exploring several effective design approaches, this book covers. Design of meander line antenna for operating frequency of 2. To confirm the validity of this technique, measured electrical performance and. What is meander line antenna meander line patch antenna. In this study, a miniaturized printed monopole antenna based on slotted meander line patch at 878mhz is proposed for uhf band. For questions about how to use eznec in support of the book s. The patch is of length l, width w, and sitting on top of a substrate some dielectric circuit board of thickness h with permittivity. Antenna theory analysis and design 3rd ed internet archive. Andrew lewis, marcus randall, amir galehdar, david thiel, et al using ant colony optimisation to construct meander line rfid antennas berlin, germanybiologicallyinspired optimisation methods. Analysis and design of meander line dipole antennas.
Section i provides the overview of microstrip meander line reconfigurable antenna. Conference on recent advances in microwave theory and applications. In this paper, the meander line antenna have been designed to operate at 2. Frequency selective surfaces fsss have important military and civilian applications including antenna theory, satellite communications and stealth technology. The first resonance of meander dipole antenna is at 200 mhz. The design of an effective meander line antenna for rfid purposes requires balancing geometrical characteristics with the microchip impedance. In this paper, the meander line antenna mla have been designed to operate at 2. H 3 2 antenna basics an antenna is basically a conductor exposed in space. Pdf meander line antennas parameters enhancement for. The effect of conductor line to meander line antenna. Abstract this article presents the design of a novel planar antenna structure. This evolved technology needs a cutting edge system component to be designed for the node b base station and the user.
Therefore, there is an issue of optimization in determining the antenna parameters for best performance. Ieee international conference on recent advances in microwave theory and. Antenna modeling for beginners american radio relay league. Antenna theory micro strip micro strip antennas are lowprofile antennas. An intuitive tutorial of antennas and antenna theory. Meander line antenna has been proposed over the long vertical microstrip feeding line at 0. The performance of each antenna is evaluated based on return loss, operational bandwidth, and radiation pattern characteristics. The microwave office software is used for simulation design process. A highsensitivity microstrip patch sensor antenna mpsa loaded with a meanderline slot mls is proposed for the measurement of relative permittivity. Antenna theory and microstrip antennas 1st edition d. Antenna whether it transmits or receives or does both can be connected to the circuitry at the station through a transmission line. In our case, for the purpose of reducing the size of transponder, a meander line antenna mla is an attractive choice. Using ant colony optimisation to construct meanderline.
Combination of horizontal and vertical lines forms turns. The design of an effective meanderline antenna for rfid purposes requires balancing geometrical characteristics with the microchip impedance. A novel microstrip meanderline antenna with a very high. However, the good news is that experimenting with homemade antennas is one of the most accessible and enjoyable aspects of amateur radio. Hi all, i will like to know the basics of designing a meander line antenna. The dipolemeander class creates a meander dipole antenna with four dipoles. It contains supplementary information including references and tutorials. 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. The patch antenna, microstrip transmission line and ground plane are made of high conductivity metal typically copper.
Design of planar meander line antenna ieee conference. It is implemented by dividing a conventional spiral patch into a different number of segments and placing them on different sides of the microwave substrate with vias as the connections. Design, fabrication, and characterization of a dualbandelectrically small meanderline monopole antenna for wireless communications. Meander line antenna mla is the most usage of antenna that use in lte. Low bandwidth of the classic meander line antennas is a problem 3, as the classic meander line antenna is one of the microstrip antennas 4.
This can bea straight trace inverted f, type trace, meandered trace, circular trace, or a curve withwiggles depending on the antenna type and space constraints. Lte is a standard for wireless data communications technology and an evolution of the gsmumts standards. Ictpituursi school on wireless networking for development the abdus salam international centre for theoretical physics ictp, trieste italy, 5 to 24 february 2007. Long term evolution lte is a fourth generation standard for wireless communications of high data speed at the user terminal.
The study of different impedance meander line for planar. In meander line antenna the size of the dipole at given frequency is reduced by a. The 3d view for gain of meander line antenna is also shown in fig. Warnagiris and minardo 14 improved the antenna performance by switching the phase of a meander line. In depth antenna theory can become quite complicated, but a qualitative and simplified theoretical explanation help help in understanding what is actually happening, how the radio antennas work, and how they can be optimised. Design of meandered pifa antenna for wireless application. In this paper, meanderline planar monopole antenna mounted on pcsimt2000wlan handset. 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. Huang 245 design of meander line antenna is mainly by folding a monopole or dipole antenna into a zigzag pattern. Meanderline antenna is a truly transformation of monopole antenna. 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. Fixed conductor line length c2 and conductor line width. A metal patch mounted at a ground level with a dielectric material inbetween constitutes a micro strip or patch. This inductance is important because electrically small antennas can have a signi.
The thalweg hugs the outer banks and returns to center over the riffles. A microstrip meander line reconfigurable antenna for. Section ii describes how the concept of classic meander line is formed. 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. 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. Pdf design and simulation of meander line antenna for. Therefore, in our work, we make a study on the meanderline antenna. Design and analysis of meander microstrip antenna at wireless. The operation of classic meander line is changed by two p i n diodes which helps antenna to resonate at different frequencies. The radiation pattern of the meander line antenna was shown in fig. Design and analysis of meander microstrip antenna at.
A miniaturized 878mhz slotted meander line monopole. 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. The coupling element and meander line antenna affect size of antenna and radiation efficiency in antenna structure, it has been introduced in background 36. Parallel algorithms, systems and applications 2009. The proposed antenna employs meander line technology and matched loads. Antenna, meander line antenna, vswr, wireless, sparameter. New material includes smart antennas and fractal antennas, along with the latest. A novel vertical meandering technique to reduce the lateral size of a planar printed antenna is presented.
However, the theory and design concept are not well described. The idea is to fold the antenna element back and forth to make the overall antenna shorter. Two different designs of meander line antenna are investigates, without conductor line and with conductor line. The functioning of an antenna depends upon the radiation mechanism of a transmission line. An understanding of basic radio antenna theory will help the maximum be gained from any aerial system. The evolution of the miniaturization techniques using slots and meander line is demonstrated in section 2. Two different designs of meander line antenna are investigated, using conductor line and parasitic. Two different designs of meander line antenna are investigated, without conductor line and with conductor line. 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. The antenna is center fed and it is symmetric about its origin.
In our case, for the purpose of reducing the size of transponder, a meanderline antenna mla is an attractive choice. Their applications range from antennas to stealth aircraft. In order to determine the performance of varying design. Pdf the effect of conductor line to meander line antenna.
Concise and readable, it provides theoretical background, application materials, and details of recent progress. Balanis the discipline of antenna theory has experienced vast technological changes. What i will also like to know is how skycross seem to be able to use this design technique to control the radiation patterns and obtain a broadbanddualabnd antenna with acceptable gain. The prototype is proposed for wireless localarea network wlan applications in the 2. This website is intended to be a source of knowledge for learning about and understanding antennas. Design and analysis of a folded meander dipole antenna using. Ben has been the worldwide guru of this technology. Amir galehdar, david thiel, et al using ant colony optimisation to construct meanderline rfid antennas berlin. Design of meander slotted patch antenna for wireless.
The authors presentations at the 20 dayton hamvention may be downloaded as pdf files by clicking the following links. The success of the three previous editions of practical antenna handbook has been most gratifying. 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. These are preliminary notes, intended only for distribution among the participants. Design of meander line antenna for operating frequency of. Meander line antenna, electrically small antenna semantic scholar. It is typically designated the borderline when rivers are used as political borders. The meander line antenna is a type of printed antenna that achieves miniaturization in size by embedding the wire structure on a dielectric substrate. The sole functionality of an antenna is power radiation or reception. Less line radiation compared to microstrip feed the line is closer to the ground plane can allow for higher bandwidth no probe inductance, so substrate can be thicker disadvantages. They confirmed that the types of people who buy the book meet the profile above. A novel multiband planar invertedf antenna with meander line and slots applied on the radiating patch has been introduced.
In response, constantine balanis has updated his classic text, antenna theory, offering the most recent look at all the necessary topics. The design of meander line antenna is a set of horizontal and vertical lines. It was with surprise and delight that i noted that clerks in one radio. This work describes the design and implementation of an antenna based on meander line technique and ended in circular structures and two parasitic element acting as reflectors, in order to be applied as 915 mhz uhf rfid tag antenna.
Jul 08, 2003 their applications range from antennas to stealth aircraft. It has been applied for tracking of products, luggage, books, and animals, where. Spiral inductors are much more efficient but require an air bridge to connect inner end of an inductor. Requires multilayer fabrication alignment is important for input match. A novel meander line microstrip logperiodic dipole antenna. This could be addressed by changing the matching system between the antenna and transmission line, but that solution only works well at the new design frequency. Meander line antenna mla have been designed to operate at 2. Antenna design based on meander line technique to be applied. An inductor model for analyzing the performance of printed.
Dual band meander line antenna for wireless lan communication a. The arrows on the antenna represent the current flow direction and the number of the arrows illustrates the magnitude of the current distribution. 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. Design and fabrication of an electrically small meander line. Pdf design and simulation of meander line antenna for lte. The antenna and transmission line no longer have the same impedance, and the signal will be reflected back into the antenna, reducing output. Clerks in radio stores told me that this book was outselling other titles 2. Hello hanaf meander line antennas are normally lambda2 or lambda4 antennas. The authors in 6 proposed a meander line structure for pcmcia cards at 2. Using ant colony optimisation to construct meanderline rfid.
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