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. Unnecessarily complicated math is avoided throughout. It is typically designated the borderline when rivers are used as political borders. A sample of meander line dipole antenna with approximate representation of the instantaneous current distribution. In this paper, the meander line antenna have been designed to operate at 2. This website is designed to present a comprehensive overview of antennas, from design, to measurement and theory. The patch is of length l, width w, and sitting on top of a substrate some dielectric circuit board of thickness h with permittivity. 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.
Antenna theory analysis and design 3rd ed internet archive. A new planar broadband antenna based on meandered line loops. Ben has been the worldwide guru of this technology. Using ant colony optimisation to construct meanderline rfid antennas.
The effect of conductor line to meander line antenna. Meander line antenna mla is the most usage of antenna that use in lte. Two different designs of meander line antenna are investigated, using conductor line and parasitic. The sole functionality of an antenna is power radiation or reception. The proposed sensor claimed to improve the sensitivity for the relative permittivity measurement ranging from 2. A novel microstrip meanderline antenna with a very high. Pdf meander line antennas parameters enhancement for. The idea is to fold the antenna element back and forth to make the overall antenna shorter. 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. Pdf the meander line antennas mla are electrically small antennas that pose. Pdf design and simulation of meander line antenna for. This website is intended to be a source of knowledge for learning about and understanding antennas. The following material supports the book antenna modeling for beginners.
Antenna theory and microstrip antennas 1st edition d. In case of meander line if meander spacing is increase resonant frequency decreases. Khaleghi abstracta printed meander line antenna is described with a shaped ground plane and a back coupled rectangular patch. 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. Antenna modeling for beginners american radio relay league. Design, fabrication, and characterization of a dualbandelectrically small meanderline monopole antenna for wireless communications. Design and practice of small antennas i chapter 7 modern. Their applications range from antennas to stealth aircraft. However, the theory and design concept are not well described. Design, fabrication, and characterization of a dual. 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. Experimental results and validation todetermine if thedesign in fig. The proposed work presents a microstrip patch antenna with meanderlineloaded used as a sensor for relative permittivity measurement.
Meanderline antenna is a truly transformation of monopole antenna. The design of an effective meander line antenna for rfid purposes requires balancing geometrical characteristics with the microchip impedance. Antenna design based on meander line technique to be. In response, constantine balanis has updated his classic text, antenna theory, offering the most recent look at all the necessary topics. Ictpituursi school on wireless networking for development the abdus salam international centre for theoretical physics ictp, trieste italy, 5 to 24 february 2007. Empirical relation for designing the meander line antenna ieee. Vertical meandering approach for antenna size reduction. Requires multilayer fabrication alignment is important for input match.
The meander arc length is the distance along the thalweg over one meander. However, the good news is that experimenting with homemade antennas is one of the most accessible and enjoyable aspects of amateur radio. New material includes smart antennas and fractal antennas, along with the latest. A miniaturized 878mhz slotted meander line monopole. The theoretically perfect antenna can never be built because theory itself is not perfect. 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. A highsensitivity microstrip patch sensor antenna mpsa loaded with a meanderline slot mls is proposed for the measurement of relative permittivity.
The radiation pattern of the meander line antenna was shown in fig. Long term evolution lte is a fourth generation standard for wireless communications of high data speed at the user terminal. Meander line antenna mla have been designed to operate at 2. The thalweg hugs the outer banks and returns to center over the riffles. Exploring several effective design approaches, this book covers. The prototype is proposed for wireless localarea network wlan applications in the 2. The operation of classic meander line is changed by two p i n diodes which helps antenna to resonate at different frequencies. The success of the three previous editions of practical antenna handbook has been most gratifying. Jul 08, 2003 their applications range from antennas to stealth aircraft. The proposed work presents a microstrip patch antenna with meander line loaded used as a sensor for relative permittivity measurement. Abstract acompact, planar, dualband meanderline monopole antenna that operates in frequency range of 2. 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. Conference on recent advances in microwave theory and applications.
A highsensitivity microstrip patch sensor antenna mpsa loaded with a meander line slot mls is proposed for the measurement of relative permittivity. The dipolemeander class creates a meander dipole antenna with four dipoles. Therefore, in our work, we make a study on the meanderline antenna. Combination of horizontal and vertical lines forms turns.
Meander line antenna is a type of printed antenna that can achieves miniaturization in size by embedding a wire structure onto a dielectric substrate. Meander line antenna has been proposed over the long vertical microstrip feeding line at 0. In this paper, meanderline planar monopole antenna mounted on pcsimt2000wlan handset. In our case, for the purpose of reducing the size of transponder, a meanderline antenna mla is an attractive choice. Analysis and design of meander line dipole antennas. This inductance is important because electrically small antennas can have a signi. The patch antenna, microstrip transmission line and ground plane are made of high conductivity metal typically copper. The design of meander line antenna is a set of horizontal and vertical lines. H 3 2 antenna basics an antenna is basically a conductor exposed in space. Concise and readable, it provides theoretical background, application materials, and details of recent progress.
Andrew lewis, marcus randall, amir galehdar, david thiel, et al using ant colony optimisation to construct meander line rfid antennas berlin, germanybiologicallyinspired optimisation methods. Warnagiris and minardo 14 improved the antenna performance by switching the phase of a meander line. 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. This paper proposes an electrically two type of smallsize antenna that is based on the meander antenna structure that. This evolved technology needs a cutting edge system component to be designed for the node b base station and the user. Antenna theory micro strip micro strip antennas are lowprofile antennas. An inductor model for analyzing the performance of printed. Balanis the discipline of antenna theory has experienced vast technological changes. For questions about how to use eznec in support of the book s. The study of different impedance meander line for planar. If the length of the conductor is a certain ratio or multiple of the. One of the most important components of rfid systems is the antenna and its design is critical to the utility of such tracking systems.
The antenna is center fed and it is symmetric about its origin. Parallel algorithms, systems and applications 2009. It contains supplementary information including references and tutorials. 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. Section ii describes how the concept of classic meander line is formed. Pdf design and simulation of meander line antenna for lte. A microstrip meander line reconfigurable antenna for. This book discusses finite antenna arrays and how to minimize the radar cross section of these arrays. The microwave office software is used for simulation design process. The line of maximum depth, or channel, is the thalweg or thalweg 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.
Abstract this article presents the design of a novel planar antenna structure. What is meander line antenna meander line patch antenna. The performance of each antenna is evaluated based on return loss, operational bandwidth, and radiation pattern characteristics. Section i provides the overview of microstrip meander line reconfigurable antenna. Two different designs of meander line antenna are investigates, without conductor line and with conductor line.
Antenna whether it transmits or receives or does both can be connected to the circuitry at the station through a transmission line. Introduction in the recent years, there has been rapid growth in the field of wireless communication. Spiral inductors are much more efficient but require an air bridge to connect inner end of an inductor. Design of meander slotted patch antenna for wireless. The 3d view for gain of meander line antenna is also shown in fig.
The gain of the antenna is efficient for meander line antenna to operate well at 2. 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. In this paper, the meander line antenna mla have been designed to operate at 2. The compatibility of microstrip antennas with integrated electronics is another great advantage. Design of meander line antenna for operating frequency of 2. In this paper, we designed a novel compact internal. Design of meander line antenna for operating frequency of. It has been applied for tracking of products, luggage, books, and animals, where. A novel vertical meandering technique to reduce the lateral size of a planar printed antenna is presented. The design of an effective meanderline antenna for rfid purposes requires. Ieee international conference on recent advances in microwave theory and. Hi all, i will like to know the basics of designing a meander line antenna. The design of an effective meanderline antenna for rfid purposes requires balancing geometrical characteristics with the microchip impedance. Design and analysis of a folded meander dipole antenna.
In 5 described the different designs of meander line antenna such as, mla with different thickness of vertical segment. Antenna, meander line antenna, vswr, wireless, sparameter. Clerks in radio stores told me that this book was outselling other titles 2. Internal monopole antenna design for multiband operation and. Fixed conductor line length c2 and conductor line width. Consider the microstrip antenna shown in figure 1, fed by a microstrip transmission 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 arrows on the antenna represent the current flow direction and the number of the arrows illustrates the magnitude of the current distribution.
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. Pdf the effect of conductor line to meander line antenna. In this study, a miniaturized printed monopole antenna based on slotted meander line patch at 878mhz is proposed for uhf band. The authors presentations at the 20 dayton hamvention may be downloaded as pdf files by clicking the following links. Using ant colony optimisation to construct meanderline. Frequency selective surfaces fsss have important military and civilian applications including antenna theory, satellite communications and stealth technology. Huang 245 design of meander line antenna is mainly by folding a monopole or dipole antenna into a zigzag pattern.
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. A small square defected ground structure is introduced to improve the impedance matching of the antenna. We will use the empirical equations to come up with a meander line antenna mla that has a resonant frequency of 2. 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 coupling element and meander line antenna affect size of antenna and radiation efficiency in antenna structure, it has been introduced in background 36.
Two different designs of meander line antenna are investigated, without conductor line and with conductor line. Design of planar meander line antenna ieee conference. Using ant colony optimisation to construct meanderline rfid. The meander line antenna is a type of printed antenna that achieves miniaturization in size by embedding the wire structure on a dielectric substrate. They confirmed that the types of people who buy the book meet the profile above. Design and analysis of a folded meander dipole antenna using. Lte is a standard for wireless data communications technology and an evolution of the gsmumts standards. Design of meanderline antennas for radio frequency.
Dual band meander line antenna for wireless lan communication a. The proposed antenna employs meander line technology and matched loads. The antenna and transmission line no longer have the same impedance, and the signal will be reflected back into the antenna, reducing output. Antenna design based on meander line technique to be applied. Hello hanaf meander line antennas are normally lambda2 or lambda4 antennas. The evolution of the miniaturization techniques using slots and meander line is demonstrated in section 2. 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. A novel multiband planar invertedf antenna with meander line and slots applied on the radiating patch has been introduced. The first resonance of meander dipole antenna is at 200 mhz. The investigation has been done for different type of feeding and with and without conductor line. 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. These are preliminary notes, intended only for distribution among the participants.
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. 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. A novel meander line microstrip logperiodic dipole antenna. Amir galehdar, david thiel, et al using ant colony optimisation to construct meanderline rfid antennas berlin. Design and analysis of meander microstrip antenna at. 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. In meander line antenna the size of the dipole at given frequency is reduced by a. 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. To confirm the validity of this technique, measured electrical performance and. In order to determine the performance of varying design. Design and fabrication of an electrically small meander line. Design of meandered pifa antenna for wireless application. Design and analysis of meander microstrip antenna at wireless. It was with surprise and delight that i noted that clerks in one radio.
Ben munk has written a book that represents the epitomy of practical understanding. Design and fabrication of an electrically small meander. 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. The authors in 6 proposed a meander line structure for pcmcia cards at 2. Antenna theory and microstrip antennas offers a uniquely balanced analysis of antenna fundamentals and microstrip antennas. A metal patch mounted at a ground level with a dielectric material inbetween constitutes a micro strip or patch. Meander line antenna, electrically small antenna semantic scholar.48 1309 828 98 384 1275 574 882 1064 212 1426 1405 52 440 862 1027 284 725 25 400 503 200 82 1124 238 1216 572 803 454 784 8 1488 669 1156 93 1435 866 1463 724 107 972 828