Whenever electrons flow through a conductor, a magnetic field will develop around that conductor. An fss structure with geometrically separable meanderline. The meander inductor geometry is composed of mean dertype conductor lines located on a simple plane and meander magnetic cores located on the multilevels as shown in fig. Meander line antenna is the most usage of antenna that use in design of these applications. Analysis, design, and optimization of spiral inductors and tra. If the length of the conductor is a certain ratio or multiple of the. The hot conductor is embedded in a homogeneous and isotropic dielectric, of dielectric.
In this paper meander type inductors are designed and fabricated in silicon and flexible technology in order to investigate the performance of this topology and the possibilities of its utilization in rf applications. Performance analysis of meandertype inductor in silicon and. Experimental results and validation todetermine if thedesign in fig. Coilcraft design tools powerful web tools to help you find the best parts and optimize your designs. Magnetics inductor design software is an aid to assist design engineers in selecting the optimum powder core for inductor applications, specifically in switchmode power supply smps output filters, also known as dc inductors. In addition to coils on pcb in the form of a square or circular spirals also there is in the form of a meander.
Meander line antenna mla is an electrically small antenna which poses several performance related issues such as narrow bandwidth, high vswr, low gain and high cross polarization levels. It also covers subjects such as laminations, tape cores, powder cores and ferrites, and iron alloys. A partialelement equivalent circuit model peec for the inductance determination of grounded meander line inductors printed on circuit boards and their capacitance determination by means of. A partialelement circuit model for meander line inductors printed on circuit boards is proposed and its relation with the physical layout is derived. All the measured results show that the proposed fss designs exhibit. The dc resistance of the inductor must be less than 0.
Modelling techniques and novel configurations for meander. Microwave characteristics meander inductors fabricated by. Transformer and inductor design handbook crc press book. In addition, the responses of physically larger inductors can also be made using circuit models synthesized directly from the unit cell layout of the inductors. In addition, due to selfinductive and mutualinductive effects i. Design and simulation of meander line antenna for oscillator pisa electric megahertz metamaterials designed with deep. Design of inductors highimpedance line meander line circular spiral square spiral circuit representation initial design formula for straightline inductor prof. Abstractin this paper, novel compact lowpass filters using hilo technique and meander method. Design of inductors and high frequency transformers inductors store energy, transformers transfer energy.
A procedure for the design is presented allowing to obtain inductances between 8 and 50 nh in the range from 30 to mhz. The apparent power, pt, of an inductor is the va of the inductor. The magnetic cores are significantly different for inductors and high frequency transformers. Specifically, here we obtain experimentally an unprecedented midinfrared redshift of 39. The element r dct presents the total dc resistance. An inductor model for analyzing the performance of printed. Using only the lower frequency response of electrically smaller inductors, their higher frequency response is predicted. This book covers topics in transformer and inductor design and how they relate to various converter circuits. Inductor design two different types of core materials are commonly used for the inductor in a switching regulator powder cores and ferrite cores. An inductor model by simulating the meander line sections as. Meander inductors fabricated by 3d selfassembly gerald w.
Stripline design stripline transmission line requires three layers of conductors where the internal conductor is commonly called the hot conductor, while the other two, always connected at signal ground, are called cold or ground conductors. Filter inductor design constraints let us consider the design of the filter inductor illustrated in figs. For different designs, they have different values for. Inductors need an air gap for storing energy, transformers do not. These design requirements cannot be met satisfactorily in many cases without the use of rf inductors. One standard meanderline antenna and other two nonstandard meander antennas have been studied. The inductance for the meander inductor is greater because a conductor line for the zigzag inductor has no maximal possible length within the mechanical dimensions of an smd chip, and the inductance of the zigzag inductor can be increased, if we increase the. 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 major problem for implementation of a compact lumped inductor model was the lack of an accurate and simple expression for meander inductance. Microwave office element catalog ni awr design environment v14.
A procedure for the design is presented allowing to obtain inductances between 8 and. One of her more seductive ideas is the notion of possible correlations between kinds of stories and certain patterns, as. Included are magnetics fundamentals, magnetic materials, catalog material on cores, various aspects of transformer and inductor design including threephase transformers, transductors for flyback and forward. Highperformance zigzag and meander inductors embedded in.
Microstrip line with extended range of design parameters fem quasistatic. This is often simply the maximum output current that the inductor must support. Ungrounded meander line inductor as stated earlier, printed ungrounded meander line inductor can be used as the shunt element in transmission line for realization of crlh structures, figure 1 shows a single turn of ungrounded meaner line inductor. Magnetic fields affect the alignment of electrons in an atom, and can cause physical force to develop between atoms across space just as with electric fields developing force between electrically charged particles. In order to analyze zigzag and meander inductors embedded in ferrite material, the equivalent circuit describing electrical properties of the presented structure is determined, and is depicted in fig. Magnetic builder magnetic design software, inductor and transformer design tool poweresim is a free webbased software providing power supply smps design, transformer design, magnetic design, loss analysis, thermal analysis, waveform analysis, mtbf analysis, bom building, dvt analysis and optimization of power supply smps. A multilayer negativerefractiveindex transmissionline nritl metamaterial freespace. It is assumed that the core and proximity losses are negligible, so that the inductor losses are dominated by the lowfrequency copper losses. Lumped inductors and capacitors the elements whose physical dimensions are much smaller than the free space wavelength. As this name implies, most of the current flowing through the inductor is dc, with some amount of ac ripple.
Micromachined planar inductors on silicon wafers for mems applications. This calculator computes the inductance of a microstrip etched on a pcb, which according to the arrl handbook is. In order to evaluate the performance in a manner suitable for comparison, each antenna is identically implemented using a 50ohm grounded coplanar waveguide gcpw as its feeding line. Design and analysis of meander microstrip antenna at. H 3 2 antenna basics an antenna is basically a conductor exposed in space. Circuit model for planar ebg structures compact mimo antenna for multiband mobile applications performance analysis of meander type inductor in silicon and design and analysis of mems inductors and filters for 1ghz design of. A comprehensive guide for correct component selection in all circuit applications.
This dissertation reports multiband slow wave structures integrated with ferromagnetic and ferroelectric. Design in the first instance, a meander coil shape has been chosen for fabrication process simplicity. Conventional meander line antenna the design of wideband mla evolves from the conventional mla mla1, whose con. Design of compactsize and highq resonator with composite of. A power electronics converter design requires a filter inductor. Nov 01, 2002 a unique and simple method of modeling a coplanar waveguide meander. In this paper meandertype inductors are designed and fabricated in silicon and flexible technology in order to investigate the performance of this topology and the possibilities of its utilization in rf applications. Design of meander line antenna is mainly by folding a monopole or dipole antenna into a zigzag. The inductor or coil behave the same way whether the load is a radiating antenna or an electronic circuit. A compact meanderline uhf rfid tag antenna loaded with elements found in rightlefthanded.
This thesis focuses on the design and evaluation of the meanderline antenna geometry. Resistances r w and r f are the winding and ferrite resistances, respectively. Pdf design and simulation of meander line antenna for. Modelling techniques and novel configurations for meanderlinecoil electromagnetic acoustic transducers emats a thesis submitted to the university of manchester for the degree of doctor of philosophy in the faculty of engineering and physical sciences 2016 by yuedong xie school of electrical and electronic engineering. Performance analysis of meandertype inductor in silicon. Niknejad master of philosophy in engineeringelectrical engineering and computer sciences university of california professor robert g. Magnetics builder design magnetic inductor and transformer. These printed antennas are discussed with the goal of identifying which is suitable for use in a miniaturized wireless transceiver design and. Transformer and inductor design handbook third edition, revised and expanded colonel wm. For line frequency ac plus high frequency ripple enter the rms value of the line frequency and add the high frequency ripple into the peaktopeak ripple. This inductance is important because electrically small antennas can have a signi. Wideband circuit model for planar ebg structures electrical and. In each segment, timevarying conductive current will flow due to a timevarying voltage impressed on the segment. An understanding of highspeed interconnect phenomena is essential for digital designers who must deal with the challenges posed by the everincreasing operating speeds of todays microprocessors.
For the calculation of such inductive element is this plugin. Design and analysis of meander microstrip antenna at wireless. Find meander inductor related suppliers, manufacturers, products and specifications on globalspec a trusted source of meander inductor information. The design of an ac inductor is quite similar to that of a transformer. Mtraced obsolete multilayer meander microstrip line configurable. It is difficult to recommend one material over the other since the designer must take into consideration factors such as cost, volume, size and space limitations, and winding capabilities.
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. This book provides a muchneeded, practical guide to the state of the art of modern digital system design, combining easily accessible explanations with immensely useful problem. In order to be implemented in circuits, meander inductors have to be supported by models. Magnetic fields and inductance inductors electronics textbook. Spiral inductors are much more efficient but require an air bridge to connect inner end of an inductor. This book was written to assist the author and the many design engineers the author supported during circuit design and product development. This page deals purely with inductors or transformers which are intended to store energy or act as dc chokes. Transformer and inductor design handbook crc press book with its practical approach to design, transformer and inductor design handbook, fourth edition distinguishes itself from other books by presenting information and guidance that is shaped primarily by the users needs and point of view. Fss structure with geometrically separable meanderline inductors. The following design guide may also be downloaded as a pdf. Bandwidth enhancement for low frequency meander line antenna jun fan1, zhenya lei1, yongjun xie2. An inductor model by simulating the meander line s sections a electrical inductors and the interconnecting radiation elements as a quasimonopole antenna is developed to analyze the antenna performance. Design of meander line inductors on printed circuit boards. An inductor is an inductor, it doesnt change its characteristics depending on enduse, although different designs can work better with different reactance requirements.
Meander line inductors have lower inductance per unit area than coil inductors. The effective dc current in amps flowing through the inductor. For line frequency ac plus high frequency ripple enter the. Design inductor having a given inductance l, which carries worstcase current imax without saturating, and which has a given winding resistance r, or, equivalently, exhibits a worstcase copper loss of.
Request pdf design of meander line inductors on printed circuit boards a. In the security alert window, select enable content, then click ok. Pdf design and simulation of meander line antenna for lte. If there is no dc flux in the core, the design calculations are straightforward. Hi all, i will like to know the basics of designing a meander line antenna. The inductance of a grounded meander line has been. Aug 17, 2011 the author has 25 years experience as a components engineer in many areas of electronic and electrical circuit design. Slow wave structures are the specially designed transmission line realized by placing the alternate narrow and wide signal conductors in order to reduce the physical size of the components. Ftir results of the field transmission for the 0, 1 and 3turn designs. Design of lowpass filter using meander inductor and uform hi. The book begins by providing the basic fundamentals of magnetics, followed by an explanation of design using the kg or ap techniques. Highperformance zigzag and meander inductors embedded in ferrite material.
Inductors, being just coils of copper wire, will allow dc to pass easily, but when ac is applied, inductors create an opposition to current flow that increases, as the frequency of the alternating current increases. Electrical tunable meander line inductor using coplanar waveguide structures with patterned permalloy py thin film has been designed and implemented in this paper. Application of submicrometer patterned permalloy thin. Slow wave structures integrated with ferromagnetic and. Inductance extraction of a meander line on a coplanar plane. Bandwidth enhancement for low frequency meander line. Realizing small inductor values on a pcb by using microstrip lines as needed for e. This paper describe the design,simulation and development of meander line microstrip antenna at.
This paper presents a novel methodology, which employs a multilayer. This paper describe the design,simulation and development of meander line microstrip antenna at wireless band, the antenna was. Bandwidth enhancement for low frequency meander line antenna. Required inductance l, core size, and core nominal inductance a l are known. Gcpw will allow each antenna to be independently assessed using a vector network analyzer. Transformer and inductor design handbook electrical and. At maximum load, the average inductor current will be 3. Fmlinx obsolete octagonal spiral rfic microstrip inductor fem quasistatic. For example flyback transformers, boost or buck inductors, hysteretic constantcurrent inductors etc. Application of submicrometer patterned permalloy thin film. Compact form of expressions for inductance calculation of.
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