In our case, for the purpose of reducing the size of transponder, a meander line antenna mla is an attractive choice. The antenna is designed to be fed with 50 or 75 ohm coax cable of most any length with a balun. 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. Quadrifilar helicoidal antenna javascript online calculator. Capacitance calculator capacitor design to use the calculator. This model is for meteorological satellites, but a calculator is provided to adapt measure to other frequencies.
To meet modern design requirements, pcb antenna software provides the antenna geometrical and. The first resonance of meander dipole antenna is at 200 mhz. The design of an effective meanderline antenna for rfid purposes requires. 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 performance of meander antennas for shortwave is described by warnagiris and minardo in ieee trans. If the ratio lw is close to unity, the radiation pattern will be symmetric but may not provide a resonable input impedance. Design, fabrication, and characterization of a dual. An example of free antenna analysis software is 4nec2 which can evaluate many types of antennas.
The meander line is preferred over all other techniques due to lowprofile, ease of printing and lowcost. Using this software, you can design and build your own yagi antenna. With the proliferation of personal computers and affordable even free software, antenna modeling has become a. Its a light magnetic loop antenna calculator that run on ms windows, and allow to calculate capacitor values and voltage based on loop circumference, conductor diameter, desired resonant frequency and the operating power. Design and analysis of meander microstrip antenna at. The dipolemeander class creates a meander dipole antenna with four dipoles.
The design, analysis and characterization of the two proposed antennas are performed using simulation software feko. Design and comparative study of meander antenna and. Yagi calculator is a free antenna design and analysis software for windows. Pcb antenna design software accurately analyzes the filters, microstrip lines, and passive components that make up a pcb antenna. This paper presents optimization problem formulations to design meanderline antennas for passive uhf radio frequency identification tags based on given specifications of input impedance, frequency range, and geometric constraints. Design and analysis of a folded meander dipole antenna. A very basic program for calculating the length of each leg of a 12 wave wire dipole antenna. However, there still is a need for a meanderline antenna that can provide wider frequency bandwidth for 5. The microwave office software is used designing antennas with a small size and provides for simulation design. Meander line antenna mla is the most usage of antenna that use in lte.
Cc1100 highly integrated multich rf transceiver designed. I think pifa and meander line antennas are the best choices but i do not know how to calculate their parameters. If you have no particular preference within a given ham radio band, then simply enter its center frequency i. The other antenna was made by antenna specialist who are still in business and may still produce the super scanner. Construction is cheap, and materials are easily available. The performance of the loop antenna is less dependent on the ground plane, thus it is suitable for a lte antenna design 9. I have been trying to design a telemetry system that it needs to an small antenna. Helical antennas invented by john kraus give a circular polarized wave. This inductance is important because electrically small antennas can have a signi. Analysis of thinwire structures in the presence of finite ground. Microstrip inductance model inductance of the loop bounded by the upper conductor and ground plane is. This antenna beams into three quadrants without the use of a rotator. Here is a simple antenna calculator for two popular forms of ham radio hf wire antennas.
This product has been released to the market and is available for. To avoid degrading of the antenna performance, a loop antenna is a good candidate for a lte system. In order to determine the performance of varying design parameters on impedance, resonance frequency, radiation pattern, etc. This app does nothing more than the standard 468freq mhz type calculations. Design of meander slotted patch antenna for wireless. Design and adjustement is easy, as with the capacitor you can tune the resonance by some mhz with no effort.
Analysis and design of meander line dipole antennas. Description of the construction of a quadrifilar helicoidal antenna. The antenna design, analysis and discussions the software tool that was utilized for the design tasks is ansoft hfss 2. By using relays, a single feed line could be switched to 1 of 3 elements or to all for an omni position. Spacing is the distance from the boom to the gammamatch. It is to note that sshape, snakelike shape as well as meander shape are interchangeable names 2 7.
By using the patch antenna the return loss, gain, directivity increases in the resonant frequency of 12ghz operates at the x band and useful for satellite communication than meander antenna. Wire antenna software free antenna modeling software. A long term evolution lte applications based antenna is. Design of meanderline antennas for radio frequency.
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. Design your own tuning capacitor for use with this antenna with the. Download hf dipole calculator 12 wave wire dipole antenna. The ultimate reference for amateur radio antennas, transmission lines and propagation. In our case, for the purpose of reducing the size of transponder, a meanderline antenna mla is an attractive choice. Experimental results and validation todetermine if thedesign in fig. Cc1110 meander antenna 868915 mhz reference design. Microstrip patch antennas or simply patch antenna are increasingly useful because the antenna is printed directly onto a circuit board. What is meander line antenna meander line patch antenna. The idea is to fold the antenna element back and forth to make the overall antenna shorter. Antenna efficiency calculator antenna efficiency calculator, parabola antenna antenna eirp calculator enter power, antenna type, frequency, coax type, coax lenght, press for eirp antenna gain vs height this calculator computes the gain and elevation angles for various. Meander line antenna with lump port in coloured portion. Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelength.
Hello hanaf meander line antennas are normally lambda2 or lambda4 antennas. The best pcb antenna design software eases antenna. For the study of meander characteristics seven antenna models were developed from 34 to 6 meanders per dipole arm. Program good for 1 500 mhz, although intended for mf hf useage. This software can not only be used to design but also to find out antenna gain, stacking distance, and standing wave ratio swr to design the antenna, you need to go to task design yagi menu. The antenna is center fed and it is symmetric about its origin. Ads software is used to compute the bandwidth, gain, directivity, and s11 of the antenna. Pasternacks microstrip patch antenna calculator determines the length and width in millimeters of a rectangular patch antenna. Description the inductance calculated using this tool is the external inductance of the loop bounded by the flat conductor and the ground plane. In a rotatable dipole with this characteristic is a nice bonus. I will like to know the basics of designing a meander line antenna. The main current distribution of the loop antenna is limited in the closed loop pattern and feed port. Featured antenna from kai siwiak, ke4pt off center end fed dipole 6m 40m intended use for apartment dwellers and mobile deployment.
The software also assists with pcb antenna design by displaying metaldielectric layers, feeds, and connector types. 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 this section, all the pcb designs will have their layouts using pads 9. The proposed sshaped monopole antennas design model is illustrated in figure 1. Design of an 868 mhz printed sshape monopole antenna. Pdf design and simulation of meander line antenna for. On this video, we talk about our meander uhf cb antenna range and the patented technology inside which makes them so good. The microstrip patch antenna calculator determines the length l and width w of a rectangular microstrip patch antenna for a given resonant frequency or vice versa. Highly integrated multich rf transceiver designed for lowpower wireless apps datasheet. In this paper, the meander line antenna which operates at 2. Additional benefits of patch antennas is that they are easily fabricated.
The implementation was validated with classical antenna simulation software. A method for calculating the resonant frequency of meander line. How can i calculate meander line antenna parameters. Design and simulation of meander line antenna for wireless. Antenna, ve3sqb ham radio antenna design software programs. Choose the units of measurement, english or metric. Pdf the effect of conductor line to meander line antenna design. Design of meander line antenna for operating frequency of.
Works either in standard and metric units, and let you choose on material, and loop shape, as circular, square or octagon. Microstrip meander slot antenna is mostly utilized in modern wireless communication devices mainly because of their small size. A microstrip meander line reconfigurable antenna for. Meander line antenna mla is an electrically small antenna which poses several performance related. One standard meanderline antenna and other two nonstandard meander. Bandwidth enhancement for low frequency meander line. 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. The measurements below are for building a simple dipole antenna.
In the cst mws software, in the local mesh properties window, one can. Antenna design based on meander line technique to be applied to. The patch antenna is a good place to start for antenna fundamentals with more coming. Dipoles are balanced antennas and are the most fundamental form of antennas.
Pdf design and simulation of meander line antenna for lte. They show that the radiation resistance of short electrical antennas, such as a short vertical monopole, can be significantly increased by using u number of. In this menu, you need to submit values of multiple. Doug vk3um was a friend from our days at unley high school during the mid 1950s, a common interest was that of radio and electronics leading to our introduction to ham radio through the 288mhz band now no longer part of australian allocations. Antenna modeling used to be the domain of scientists and engineers with very expensive antenna ranges covering acres and acres of land strewn with expensive equipment. A triangular patch antenna for uhf band with microstrip. This paper proposes an electrically two type of smallsize antenna that is based on the meander antenna structure that. The coax jumpers made the other 2 unactive elements. I think pifa and meander line antennas are the best choices but i do not know how.
1052 377 469 224 346 219 429 1459 120 744 880 619 948 1013 1149 238 1485 1362 563 216 1235 1271 674 11 1219 155 1337 571 1133 958 1007 837 1067 1032 617 230 1249 295 735 549 572 942 658 390