Wide band meander line antenna for wireless communication. The chip antenna has three substrates with four copper layers in total. Combination of horizontal and vertical lines forms turns. Complimentary split ring resonator inspired meandered cpw. The antenna has an omnidirectional radiation pattern and covers the frequency range with requisite impedance bandwidth and gain level. A long term evolution lte applications based antenna is designed with different meander lines. Thanks to image theory 22, this antenna radiates as a dipole device. They provide either multibands or ultrawideband uwb.
The novelty of the design is obtained by evaluating numerous slots and meander line that produces a new structure of double eshaped meander line antenna backed by a defected partial ground plane. Radiation impedance of a finite length monopole antenna in free space with the r esonant frequency of 2. The operating frequency of the conventional printed monopole antenna is greatly reduced by the. The effects of the number of the meander line sections are illustrated as follows. Compact varactortuned meander line monopole antenna for. Folded meander line antenna for wireless mbus in the vhf. Triple band hexagonal meanderline monopole antenna for. A tripleband meander line with two rectangular shapes. A comparison of the performance properties of the hilbert. Description of the antenna a monopole antenna with ground plane was realized figures 1ab. The characteristics of printed meander line monopole on a dielectric slab sitting on a small ground plane have been investigated for personal wireless communication pcs 1, 3. Triple band hexagonal meanderline monopole antenna for wireless applications issn. On the other side of the substrate, a conducting ground plane is placed. The 3d view for gain of meander line antenna is also shown in fig.
The antenna provides high total efficiency and gain. Design, fabrication, and characterization of a dual. Analytical, simulation and measurement studies of a dual. A meander line antenna formed by folding a conductive pattern of a folded dipole antenna in the shape of a meander is disclosed. An equivalent circuit model for meanderline monopole. Number of lines for a typical meander antenna as a function of antenna size reduction factor. Theoretical analysis based on the antenna theory was conducted to obtain the optimu m characteristics. Performance of a meandered line as an electrically small. Typical meander antenna size reduction factor as a function of line spacing.
A general purpose dipole antenna long thin wire antenna with height h 1 h 2 l2, where l is the total length of the antenna is shown in figure 1. The design parameters for the antenna have been critically analysed through em simulator to achieve the optimum geometric structure for the prototype antenna. A miniature double eshaped meander line monopole antenna with defected ground structure dgs is proposed for very high frequency vhf applications. Freq that i used for 915mhz i donno when i done the the simulation the freq not achieve the target freq. In this part of the book earth parameters do not affect the antennas electrical properties but do affect propagation losses denoted as basic transmission loss lbd in eq. A meanderline antenna can be realized by bending the conventional linear monopole antenna to decrease the size of antenna 16. Therefore, more turns of tapered meander line traces will reduce the operating frequency of the fundamental mode. The design of meander line antenna is a set of horizontal and vertical lines. The uwb antenna is achieved by connecting in parallel four meander line. The gain of the antenna is efficient for meander line antenna to operate well at 2.
The radiating element consists on a meander monopole line. Experimental results and validation todetermine if thedesign in fig. However, the 7turn tapered meander line antenna has the first and the third resonance at 1. The antenna has a meander line with two rectangular shapes and stub. Conventional cpw fed monopole antenna conventional cpw fed csrr loaded monopole antenna meander cpw fed figure 1. The evolution of the miniaturization techniques using slots and meander line is demonstrated in section 2. The radiation pattern of the meander line antenna was shown in fig.
Bandwidth enhancement of a dual band planar monopole. Acompact, planar, dualband meanderline monopole antenna that operates in frequency range of 2. In 7, a dvbh hindawi international journal of antennas and propagation. Acompact, planar, dualband meander line monopole antenna that operates in frequency range of 2. Design of meanderline antennas for radio frequency. 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. The sshaped monopole antenna element together with the feedline as well as the ground boards top and bottom are all assigned with finite conductivity boundary. In our case, for the purpose of reducing the size of transponder, a meanderline antenna mla is an attractive choice. Meander line antenna mla is the most usage of antenna that use in lte. The first dualband printed monopole antenna for wireless mbus and m2m applications with operation in the vhf and lower uhf bands is presented. What is meander line antenna meander line patch antenna.
Meander line technology allows small size antenna designing and wideband operation 1, 2. A 3d electro magnetic finiteelement solver, high frequency structure simu lator hfss, was used in antenna. Folded meander line antenna for wireless mbus in the vhf and uhf bands. Pdf meander lineloaded planar monopole antennas amr. A microstrip meander line reconfigurable antenna for. Design of a compact meander monopole antenna for dualband wlan applications 2. Nevertheless, the antenna usefulness was restricted to the dvbh application 6. A fundamental monopole mode and a higher order mode are excited to obtain the 2. The dipolemeander class creates a meander dipole antenna with four dipoles.
The proposed structure consists of a meanderline monopole, a metal shielding box for the transceiver circuit, and a ground. The first dualband printed monopole antenna for wireless mbus and m2m applications with operation in the vhf and lower uhf band is presented. As mentioned before, the optimization algorithm used in the meanderline antenna design, named henceforth the cone of efficient directions algorithm ceda, is supported by guarantees on monotonic convergence. A new slot line loaded round radiating monopole antenna with meanderedmicrostrip feed structure has been proposed in this paper for uhf rfid and wimaxwlan bands application. Design of a compact meander monopole antenna for dualband. This inductance is important because electrically small antennas can have a signi. Thus, an antenna with a gain of 3 dbd would have a gain of 5. In this study, a miniaturized printed monopole antenna based on slotted meander line patch at 878mhz is proposed for uhf band. In meander line antennas, the wire is continuously folded to reduce the resonant length. The electrical length and operating mode of the antenna may.
It uses a folded meander line and therefore the length is. Part i is concerned with monopole antennas in free space. Miniature dualband meanderline monopole chip antenna. Magneto dielectricladen miniaturized wideband meander. Low cost meander line chip monopole antenna request pdf. In this paper, a printed meander line monopole antenna is represented to remove the need for deployment and to increase mission reliability. A slotted meander line printed monopole antenna for low frequency applications of 878 mhz is presented. The miniaturisation of the proposed compact antenna is based on a doublesided meandering structure offering an easily controlled large frequency ratio. Antenna modelling the geometry of a meanderline monopole antenna attached to a metallic plate is shown in fig. A small square defected ground structure is introduced to improve the impedance matching of the antenna. Pdf a miniature double eshaped meander line monopole. Polar coordinate system for antenna patterns the polar coordinate system usually applied for antenna pattern is shown in figure 9.
The antenna is center fed and it is symmetric about its origin. In this letter, a novel antenna design solution for a wireless device operating at ism 433mhz frequency band is reported. The meander line is preferred over all other techniques due to lowprofile, ease of printing and lowcost. The proposed antenna has a csrr embedded circular monopole, meandered cpw feed and symmetrical ground plane. A miniaturized 878mhz slotted meander line monopole. A compact varactortuned meander line monopole antenna for dvbh signal reception is presented. The lumped circuit element model of the antenna is shown in fig. Theoretical analysis based on the antenna theory was conducted to obtain the optimum characteristics. Pdf a miniaturized 878 mhz slotted meander line monopole. The antenna is put on the metallic plate with a dielectric spacer. Meander antenna design the meander design information supplied by rashed and.
In this paper, a new triple band planar monopole antenna for gps, wlan and wimax applications is proposed. Its fundamental idea comes from the cone of efficient directions, that is, the set of directions where there exists at least one. Hi all, today just get my final year project title. Analysis and design of meander line dipole antennas. It deploys a modified nonuniform folded meander line and capacitive loading patches to reduce the antenna size. The antenna is fabricated on fr4 substrate with dielectric. This paper proposes an electrically two type of smallsize antenna that is based on the meander antenna structure that operates in the 2. This paper presents a simple zshaped meander monopole antenna having high e ciency and super ultrawide bandwidth.
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 2. Design of an 868 mhz printed sshape monopole antenna. Design of meander line antenna for operating frequency of. Design and analysis of meander microstrip antenna at. 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. The operating frequency of the antenna is continuously tuned over the frequency range of the dvbh standard, 470702 mhz. Design and analysis of a folded meander dipole antenna. A 3d electromagnetic finiteelement solver, high frequency structure simulator hfss, was used in antenna. 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. Warnagiris and minardo 14 improved the antenna performance by switching the phase of a meander line. The meandering monopole is a compromise to reduce the amount of physical space the radiator uses, but it doesnt couple to space very well. Request pdf low cost meander line chip monopole antenna a method for miniaturizing a chip antenna is presented in this communication. An inductor model for analyzing the performance of printed.
Antenna gain relative to a dipole antenna can be expressed in decibels as dbd. However, because of the corner effects between the adjacent meander line sections, the antenna length will be higher than. The study of different impedance meander line for planar. Huang 245 design of meander line antenna is mainly by folding a monopole or dipole antenna into a zigzag pattern. Number of turns increases efficiency case of meander line if meander spacing is increase, resonant frequency decreases. Hfss 3d simulation model of the proposed meanderline monopole antenna. The basic structure of the meander line antenna includes a bottom half section formed by a folded conductive pattern, and a feeding point c arranged approximately at the center of the folded conductive pattern for mounting an ic chip, a top half section consisting.
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