The antenna is fed by an antennafeed that has an impedance of, say, 50. In 3, shivshankartondare and navale v s have proposed the meander line antenna lte communication. The gain of the antenna is efficient for meander line antenna to operate well at 2. Antenna design based on meander line technique to be applied. Simulated results are compared with results of measurement to point out the differences and help demonstrate the practical effects on antenna performance. Low profile multiband meander antenna for ltewimaxwlan. The proposed antenna can be potentially used forportable wireless communication applications. In the farfield pattern, in the result of the cancellation of magnetical fields, the transmission lines of a meander line antenna do not radiate fields. The radiation pattern shows how antennas distribute energy in space 20. Create meander dipole antenna matlab mathworks italia. A planar line monopole antenna element is the most suitable choice for mimo.
Except for the dipole being shorter, the pattern looks the same as a. 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. Directional pattern a pattern characterized by more efficient. A meander antenna with reconfigurable polarization for. Enhanced machine controllerbased antenna range emcar emcar employs linuxcnc based machine control coupled with open source software to implement a measurement system for antenna radiation pattern data i. A tripleband meander line with two rectangular shapes planar.
Apr 07, 2014 download antenna radiation diagram plotter for free. Thus, the polarization reconfigurable meander antenna is. Omnidirectional radiation pattern was obtained for 2. In the second part of this antenna basics series, you will learn more about the physics of how antennas work. Figure 2 is the far field radiation pattern and 3d flyover view of a 4x4 meander dipole with four meanders on each arm. There is also an analysis of radiation pattern, gain of the antenna, directivity of the antenna, electric far field. In this chapter all radiation patterns are related to the magnitude of electrical far field e, which is normalized and shown in the logarithmic scale in db. When installed, every object near the antenna walls, ceilings, wires, bodies, and reflections from all those objects will change the pattern. Example radiation pattern for an antenna generated with feko software. Antenna pattern definitions isotropic pattern an antenna pattern defined by uniform radiation in all directions, produced by an isotropic radiator point source, a nonphysical antenna which is.
A double sided meandered line dipole antenna with tapered balun and two stubs on tapered balun were embedded. Autoplay when autoplay is enabled, a suggested video will automatically. One can simply understand the function and directivity of an antenna by having a look at its radiation pattern. Autoplay when autoplay is enabled, a suggested video will automatically play next. Except for the dipole being shorter, the pattern looks the same as a dipole with straight arms but there are differences if we examine the characteristics. The idea is to fold the antenna element back and forth to make the overall antenna shorter. Antenna design based on meander line technique to be applied to rfid tag ricardo meneses gonzalez.
Conclusion and stub antenna for wlan, gps and wimax applications has been demonstrated. Dual band meander line dipole antenna with harmonic traps. The 3d view for gain of meander line antenna is also shown in fig. This paper presents optimization problem formulations to design meanderline antennas for passive uhf radio frequency identification tags based on given specifications of input. When designing a meander antenna, start with a trace the length of the ideal dipole, fold it into the desired shape and space, then perform numerical analysis to determine the radiation pattern and efficiency. In any illustration, the sketch drawn to represent the radiation of an antenna is its radiation pattern. Figure 3 even though the numbers tell us that 45 is the halfway point, the images in figure 3 show that the antenna characteristics are really still that of a dipole. Antenna radiation diagram plotter polar plots of measured em emission, with a proper radial axis scaling and span.
A more compact design of a meander line antenna was designed to operate at 2. An example of free antenna analysis software is 4nec2 which can evaluate many types of antennas. An optimized inkreducing hollowedout arm meander dipole. See the pattern and antenna currents on the same color 3d display as the antenna. The simulations results are obtained by using electromagnetic simulation software called feko software are presented and discussed. A tripleband meander line with two rectangular shapes. The horn antenna acts as a transmitter and antenna under test aut is kept in the receiving. Hfss is used to provide a good guide for the antenna design before the actual prototype is manufactured. Dipoles are balanced antennas and are the most fundamental form of antennas. This paper proposes an electrically two type of smallsize antenna that is based on the meander antenna structure that. To show antenna radiation patterns in detail, three two.
The radiation pattern of these antennas will be same as that of short horizontal dipole antenna. Design and analysis of meander microstrip antenna at. Analysis and design of meander line dipole antennas. This is an example of a donut shaped or toroidal radiation pattern. The electrical energy input to the antenna is radiated in the form of electromagnetic radiation of that frequency to free space. This work describes the design and implementation of an antenna based on. Design of meander line antenna for operating frequency of. Design and analysis of meander microstrip antenna at wireless. The radiation pattern for small, highefficiency loop antennas is shown in the figure given above. The radiation fields will be radiated from the vertical pars of mla. This paper presents optimization problem formulations to design meander line antennas for passive uhf radio frequency identification tags based on given specifications of input impedance, frequency range, and geometric constraints. Antenna design based on meander line technique to be. The farfield radiation pattern can also be calculated from the antenna shape by computer programs such as nec. A simple analytic formula, found in the literature for calculating the resonant frequency of a.
The radiation pattern of the meander line antenna was shown in fig. Introduction useful software has to work exactly as someone wants, so the authors group decided to develop its own minisuite of software tools for antenna applications 1. Design and analysis of a folded meander dipole antenna. This work describes the design and implementation of an antenna based on meander line. Design and analysis of a folded meander dipole antenna using the mininec program pedro a. This power variation as a function of the arrival angle is.
In this, they have optimized the parameters to achieve high gain, less than two. The antenna parameters to be measured are transmitting power and receiving power, working frequency. Pdf design and simulation of meander line antenna for lte. Keywords microstrip, patch, antenna, slit directivity of the antenna, electric far field 1. Multiple patterns can be superimposed on a single graph for comparison. In this case, along the zaxis, which would correspond to the radiation directly overhead the antenna, there is very little power transmitted. The first resonance of meander dipole antenna is at 200 mhz. Dipole antennas are also known as linear wire antennas. The antenna designed to be operated in the frequency of 2. Even if measured on an antenna range, the pattern is essentially theoretical. Design of meander line antenna for operating frequency of 2.
Radiation is the term used to represent the emission or reception of wave front at the antenna, specifying its strength. Design and simulation of meander line antenna for wireless. A double sided meandered line dipole antenna with tapered balun and two stubs on tapered balun were. The dipolemeander class creates a meander dipole antenna with four dipoles. When designing a meander antenna, start with a trace the length of the ideal dipole. Frequency graphic and radiation pattern simulation.
Antenna descriptions and pattern plots are easily saved and recalled for future analysis. This means that the maximum global radiation pattern maximum magnitude of the electrical farfield e is represented by 0 db level. The meander line section can be modeled as an equivalent inductor. Return loss of uniplanar bowtie shaped meander slot antenna 8. This work is brought to you for free and open access by the university graduate school at fiu digital commons. This paper proposes an electrically two type of smallsize antenna that is based on the meander antenna structure. The simulations results are obtained by using electromagnetic simulation. Sep 28, 2019 a radiation pattern defines the variation of the power radiated by an antenna as a function of the direction away from the antenna. Design of meander slotted patch antenna for wireless. In this, they have optimized the parameters to achieve high gain, less than two vswr, wide impedance b. Pdf design and simulation of meander line antenna for. A planar line monopole antenna element is the most suitable choice for mimo antenna system.
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. Solved software for viewing 3d antenna radiation pattern. Design and analysis of a folded meander dipole antenna using. Now that we have our measurement equipment and an antenna range, we can perform some antenna measurements. 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.
A radiation pattern defines the variation of the power radiated by an antenna as a function of the direction away from the antenna. What is meander line antenna meander line patch antenna. Qn908x ble antenna design guide nxp semiconductors. Hi all, i will like to know the basics of designing a meander line antenna. Any antennas radiation pattern is typically measured using an approximation of free space, that is, no near objects.
The radiation patterns for different angles of looping are also illustrated clearly in the figure. Radiation pattern this document shows the pcb antenna and chip antennas used in the qn9080 usb dongle and qn908x module boards. Antenna pattern definitions isotropic pattern an antenna pattern defined by uniform radiation in all directions, produced by an isotropic radiator point source, a nonphysical antenna which is the only nondirectional antenna. Download antenna radiation diagram plotter for free. Here, a meander line resonator is placed in between the radiating elements. Configuration of uniplanar bowtie shaped meander slot antenna 8 fig. The antenna is center fed and it is symmetric about its origin. Sep 28, 2015 any antenna s radiation pattern is typically measured using an approximation of free space, that is, no near objects. The radiation pattern of the printed antenna is also measured inside the micronix me8661b anechoic chamber box using the singleendedbalanced topology. Design, fabrication, and characterization of a dual.
In the field of antenna design the term radiation pattern or antenna pattern or farfield pattern refers to the directional angular dependence of the strength of the radio waves from the. Design of meanderline antennas for radio frequency. Jun 21, 2011 quick tutorial on ansoft hfss, antenna software. To help visualized the radiation, the antenna modeling software has the ability to selectively display the horizontal gain, vertical gain. Antenna descriptions and pattern plots are easily saved and recalled for future. In this application, there is a need for directive transponders to select properly the target tag, which in turn must be ideally isotropic. Enhanced machine controllerbased antenna range emcar emcar employs linuxcnc based machine control coupled with open source software to implement a. We will use the source antenna to illuminate the antenna under test. Even if measured on an antenna range, the pattern is. Miniaturization cross dipole antenna based on helix and. The farfield pattern of an antenna may be determined experimentally at an antenna range, or alternatively, the nearfield pattern may be found using a nearfield scanner, and the radiation pattern deduced from it by computation.
Thus, the antenna geometry has two most important considerations. Hello hanaf meander line antennas are normally lambda2 or lambda4 antennas. Introduction useful software has to work exactly as. Keywords floss, antenna, radiation pattern, virtual reality. The design of triple band meander line with two rectangles fig. A standard dipole antenna has an omnidirectional radiation pattern.
Meander line antenna mla is the most usage of antenna that use in lte. Thus, the polarization reconfigurable meander antenna is simulated and fabricated at 2. In the past when the measured copolar radiation pattern of the antenna or the copolar reference radiation pattern c. The setup for measurement of the radiation pattern in an anechoic chamber is shown in fig. In any illustration, the sketch drawn to represent the radiation of an. Radiation patterns, permittivity, directivity, and gain october 12, 2016 by mark hughes antennas allow information to be transferred to distant locations. Dual band meander line dipole antenna with harmonic traps is presented in this paper. By inserting the meander line resonator between the patch antennas with the edgetoedge distance less. Three source files plain text can be loaded and plotted at the same time.
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