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. Conclusion miniaturized selfresonant meander line antennas have been designed by ga optimization. The final design geometry of a meander folded dipole is. In this paper, they have investigated the parasitic element of the meander line antenna. It complements the lwa active crosseddipole antenna described here. In order to determine the performance of varying design parameters on impedance, resonance frequency, radiation pattern, etc. Simulation comparisons of three different meander line. Design of a miniaturized meandered line antenna for uhf. This is a common antenna configuration in the world of amateur radio referred to as a sloper or more accurately, halfwave sloper.
However, the uhf tag antenna has a narrow bandwidth performance that involves a ground plane which increases the design complexity. This question is answered by antenna modeling software. Select no backing under the backing structure gallery. Traditional manual tuning of antenna designs is becoming impractical for larger problems. A detailed analysis is done in terms of different substrates and thickness. Design of meander slotted patch antenna for wireless. If erected as high as possible and in the clear, then it can provide excellent performance for remarkably little cost. The original inspiration came from hf meander antennas physically short antenna for impractically long wavelength for a normal dipole or vertical, but bt and wifi antennas inspired me to try to build something flat, maybe on a piece of pcb, but for much lower frequencies 2m or 70 cm and make it usable in restricted conditions, e. The antenna is loaded with traditional coplanar waveguide inductor and capacitor elements.
The goal of this report is to design a square meander line antenna using a circuit. The most commonly used antenna is the dipole antenna used for rf with the most common applications being old tv transmissions. This antenna can be angled anywhere in a range from 0 as a halfwave vertical dipole, to 90 as a flattop horizontal dipole. A double sided meandered line dipole antenna with tapered balun and two stubs on tapered balun were embedded. Next, we consider the planar folded dipole antenna. Antenna design and rf layo ut are critical in a wireless system that transmits and receives electromagnetic radiation in free space. The antenna design module of hfworks helps you optimize your antenna design by simulating various what if scenarios to meet the stringent.
The antenna design module of hfworks helps you optimize your antenna design by simulating various what if scenarios to meet the stringent requirements imposed by the internet of things and the 5g mobile technologies. Design, fabrication, and characterization of a dualbandelectrically small meander line monopole antenna for wireless communications c. Design and analysis of a folded meander dipole antenna using the. Create meander dipole antenna matlab mathworks italia. A dualband meandered dipole antenna for medical telemetry. In order to reduce the antenna length and width, a straight conductor will be folded back and forth to make the meander line antenna structure. We use ie3d software to design planar dipole antennas and choose the better parameters to manufacture the proposed antenna with triangular stub. Design and simulation of meander line antenna for wireless. Pdf a meandered tripleband printed dipole antenna for rfid. Having had a gem quad hf 201510m for a few years, back in the early 80s, i can testify to the quads slight advantages over a tribander yagi with the same number of elements. Design of an 868 mhz printed sshape monopole antenna. Dipole antenna design software free download dipole.
In this application, there is a need for directive transponders to select properly the target tag, which in turn must be ideally isotropic. Meander line antenna is a type of printed antenna that can achieve miniaturization in size by embedding a wire structure onto a dielectric substrate. The influences of stub parameters of the planar meander dipole antennas on the resonant frequency, bandwidth, and gain are described. Antenna design based on meander line technique to be applied to. In layout pane, specify the number of elements as 4 and click accept under the close section. For a 2 meander dipole, feed at around the 4th segment. Design and analysis of a folded meander dipole antenna. For a 1 meander dipole, feed between the 2nd and 3rd segments. In this design both resonant frequencies are managed by the. Design of meander line antenna for operating frequency of. It is to note that sshape, snakelike shape as well as meander shape are interchangeable names 2 7. Create balanced bifilar or quadrafilar dipole helix antenna without circular ground plane. Antenna design based on meander line technique to be applied. Figures 6a and 6b illustrate the geometry of the unit cell of the proposed amc and the boundary condition of the amc when it was simulated, respectively.
The array designer app lets you design, visualize, and analyze arrays in the antenna toolbox library interactively. The length of the total wire, which is being used as a dipole, equals half of the wavelength i. Miniaturization cross dipole antenna based on helix and. 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. After miniaturaization, the cross dipole helix antenna has dimensions of l 325 mm with r 32. To obtain dualband operation with compact size, a meandered dipole design is considered. Abstract the aim of this paper is to design the meander line antenna mla for. My first 6m dipole was just a length of wire, cut into two, and a fibreglass pole. In this section, all the pcb designs will have their layouts using pads 9. Dual band meander line dipole antenna with harmonic traps. For compactness, a meander line configuration is implemented with dipole elements and optimized using a genetic algorithm ga to realize the lpmda antenna. Design of meander line antenna for operating frequency of 2.
Table 1 lists the characteristic parameters of the employed antenna substrate. Barros florida international university, 1991 miami, florida professor tadeusz babij, major. Antenna design based on meander line technique to be. Therefore, the size of folded dipole antenna is larger. Widely used on its own, it is also incorporated into other rf antenna designs as well, as the driven element. Therefore, the size of folded dipole antenna is larger than the microstrip meander antenna because of monopole antenna has a mirror ground 8 9. A compact planar dipole antenna 16 was constructed with an amchis. The dipole 6 invertedvee is a bent dipole radiation pattern adds the effect of ground gain from reflections can add as much as 6 db over free space freespace gain best comparative measure. The original inspiration came from hf meander antennas physically short antenna for impractically long wavelength for a normal dipole or vertical, but bt and wifi antennas inspired me to try to build. If you have a different classification for the meander antenna then please submit an answer that includes the basic antenna. Initial design an initial draft of the antenna design is rst simulated using ansys hfss. Design, fabrication, and characterization of a dual. As i can remember, in the recent issue of antennas and propagation magazine, there is a paper purposing a formula to assist the meander line dipole design. Nowadays the meander line dipole antenna mda is used widely.
The design of the rotman lens is performed using remcoms rotman lens designer rld software, which produces a cad version of the device for use in xfdtd. If you have a different classification for the meander antenna then please submit an answer that includes the basic antenna design this evolves from if its not a folded dipole design. This concludes these basic meander computer modeling studies. The dipole antenna is an excellent option for many amateur radio applications especially on the hf bands like 80 metres, 40 metres, 20 metres, 15 metres and 10 metres. Select 3d pattern under pattern section to calculate the 3d radiation pattern. The use of a meander dipole design 15 was effective to reduce the antennas size as well as create tripleband operation. In the array gallery section, select the array type as linear select dipole from antenna gallery. As i can remember, in the recent issue of antennas and.
The antenna was then simulated using cst software which then to be optimized and analyzed. Two dipole shaped meandered lines are used to achieve a vor pattern. They have used microwave office software to design and then the fabrication is made in doublesided fr4 pcb. The meander antenna is a form of folded dipole, where there are many folds. Analysis and design of meander line dipole antennas. The mwa active crosseddipole antenna is a receiveonly antenna with a design frequency range of 80 to 300 mhz. The efficient design of meander line antennas for rfid devices is a significant realworld problem. The proposed sshaped monopole antennas design model is illustrated. What i will also like to know is how skycross seem to be able to use this design technique to control the radiation. The coax was connected to the wires at the centre using stainless steel screws. The design of this antenna is utilized through the usage of folded meander line. The classic dipole is also called a balanced antenna because it is fed at its exact center the halfwave ham radio dipole is also the most common antenna used by amateur radio operators throughout the. The gap between the feed and the coplanar waveguide is 0. The calculations for an antenna might be complex, a simple dipole antenna however is pretty easy to design.
Gainoptimized selfresonant meander line antennas for rfid. In this design both resonant frequencies are managed by the distance of the microstrip line termination from the slot and by the meander slot width. An optimized inkreducing hollowedout arm meander dipole. In xfdtd, a set of eight 1 to 8 wilkinson stripline power divider networks is designed to act as the connection between the rotman lens and the antenna array. A simple analytic formula, found in the literature for calculating the resonant frequency of a meander line dipole.
Index termscoplanar waveguide cpw and passive tag, dipole,meanderline,metamaterial,radiofrequency identi. Design of meanderline antennas for radio frequency. Jan 12, 2018 here is research paper link for reconfigurable antenna design for paper replication of rfid and an. Design and analysis of a folded meander dipole antenna using. Design and analysis of meander microstrip antenna at wireless. Index termscoplanar waveguide cpw and passive tag, dipole,meander.
The first resonance of meander dipole antenna is at 200 mhz. Such a problem can be solved by mounting a dipole at a slope. The antenna is center fed and it is symmetric about its origin. 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. Song department of electrical and computer engineering, university of colorado, 1420 austin bluffs parkway, colorado springs, co 80918 united states. The design is to operate the antenna in the frequency of 2. Lee 41 presented a meander dipole antenna with high gain and omnidirectional characteristics. The dipolemeander class creates a meander dipole antenna with four dipoles. Several of the simulation results are validated by comparison with measurements. First design was realized with a tapered meander slot with microstrip feed to allocate operation at frequency bands 1. Design, visualize, and analyze arrays matlab mathworks. Jun 21, 2011 this feature is not available right now. Dual band meander line dipole antenna with harmonic traps is presented in this paper.
For a 3 meander dipole, feed at around the 6th segment. A compact and lowprofile logperiodic meandered dipole array lpmda antenna with an artificial magnetic conductor amc is proposed. Design of a miniaturized meandered line antenna for uhf rfid tags. The wireless range that an endcustomer gets out of an rf product with a currentlimited power source such as a coincell battery depends greatly on the antenna design, the enclosure, and a good pcb layout. A compact, lowprofile logperiodic meandered dipole array. The geometry of the antenna design is shown in fig. The next part of the article continues with design of the proposed antenna. The meander of the lines reduces the overall volume of the antenna while. The dipole antenna is cut and bent for effective radiation.