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