This makes a loop of wire that is a short circuit to dc. The length of the dipole is half of the wavelength. I thought the best way to draw the rounded ends of a folded dipole would be to start with a torus, then remove unnecessary parts. It is one of the several commercial tools used for antenna design.
Depending on the scale of the problem and results desired, you can select from a range of solver technologies and hpc enhancements available as addons. The folded dipole antenna consists of a basic dipole, but with an added conductor connecting the two ends together. The example will illustrate both the simplicity and power of. These plots portray the simulated input impedance of the proposed loaded and conventional antennas. While still retaining the length between the ends of half a wavelength, an additional length of conductor connects the two ends together i. That was one of the criteria for the original poster, which i thought was clear from the title free software for simple dipole antenna simulation perhaps i am missing something, but the original poster asks for simple free software, but people suggest.
Lumped port requires conductors to touch two edges of the port. As the ends appear to be folded back, the antenna is called a folded dipole antenna. Hfss software is used for the simulation and design calculations of the half wave dipole antennas. Design and simulation of high performance half wavedipole. Recently, i am learning to simulate the graphenebased antenna using hfss software. Software used to design microstrip patch antenna hfss is commercial finite element method solver for electromagnetic structures from ansys corp.
The length if the antenna is much smaller than the half wavelength. The following notes will provide a brief summary of goals. With the aid of the highfrequency structure simulator hfss software from ansys, the simulated input impedance of an inductively loaded dipole and a conventional dipole are shown in fig. The hfss features goldstandard accuracy, and advanced solver and highperformance computing technology, making it ideal for designing highfrequency and highspeed electronics found in communication systems, radar systems, satellites, smart phones, and tablet devices. The first step needed to create a 1 ghz halfwave dipole antenna is to calculate the fundamental wavelength of the desired signal in this particular case 1 ghz by using the wavelength equation, as shown by. Used hfss to model and analyze a halfwave dipole, coplanar waveguide launched dual slot antenna with ceramic lens to focus em wave. The length of the total wire, which is being used as a dipole, equals half of the wavelength i. I got a tilted radiation pattern as can be seen in the image below. Such an antenna is called as halfwave dipole antenna. Structure of patch antenna design in hfss athe 2x2 patch array antenna design is shown in below figure in 3d model.
A linearlypolarized aperture coupled patch antenna design is characterized and optimized using hfss antenna simulation software. Antenna theory halfwave folded dipole tutorialspoint. Lab 1 dipole simulation using hfss antenna radio radio. Ansys hfss is a 3d electromagnetic em simulation software for designing and simulating highfrequency electronic products such as antennas, antenna arrays,antenna based mini projects using hfss rf or microwave components, highspeed interconnects, filters, connectors, ic packages and printed circuit boards. Design of microstrip dipole antenna at various ground. The dipole can be used on its own and also as part of a larger antenna, such as the yagiuda antenna. The dipole is resonant at 1 ghz and 4 geometries have been considered a d. The dipole antenna is cut and bent for effective radiation. Starting hfss follow instructions from the hfss stripline laboratorytutorial for any pop ups that may occur. But unfortunately, the plane of the dipole is almost but not quite horizontal along the x axis. Conducted geometry parametric studies to optimize gain, pattern, sidelobes, and subharmonic rejection of lo reference leakage. Introduction in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulation software by ansoft. According to my understanding, since there is no graphene material defined in the hfss software, we need to define the material ourselves in the hfss software. The simulation results for all microstrip dipole antennas with different ground plane are discussed in term of bandwidth response and input return loss.
A folded dipole is an antenna, with two conductors connected on both sides, and folded to form a cylindrical closed shape, to which feed is given at the center. A study and analysis of smart antenna using software radio. Development and performance enhancement of mems helix antenna for thz applications using 3d hfssbased efficient electromagnetic optimization. While hfss is a more rigorous simulation software than nec.
This would be the sortest variant of the dipole antenna. The dipole antenna is designed using the hfss v15 software and impedance, directivity, gain are examined. By combining the two, we obtain the path loss as given below. How to design a 1800 mhz dipole antenna using hfss. The range of frequency in which half wave folded dipole. Animating efield on planner dipole using hfss take it easy. A dipole antenna is the simplest type of radio antenna, consisting of a conductive wire rod that is half the length of the maximum wavelength the antenna is to generate. Antenna based projects antenna based projects for ece. Antennas you can rely on ansys hfss for accurate results regarding the performance of your antennas, both as components and when integrated into an operating environment. Hfss stands for high frequency structural simulator.
Antenna projects using hfss electronics electrical projects. It also covers new features in ansys hfss for antenna analysis. This dipole antenna geometry created from the 3d component library contains geometry and excitation that defined a dipole antenna it does not include the geometry for an air volume surrounding the antenna the dipole antenna 3d component is fully parameterized and the geometry can be changed at any time by highlighting the. This video demonstrates how to perform post processing on the dipole antenna in ansys hfss. A dipole antenna approximately onehalf wavelength long is the half wave dipole antenna. This thesis focuses on the aperture coupled patch antenna due to the lack of fabrication and tuning documentation for the design of this antenna and its usefulness in arrays. Modelling, designing and simulating a dipole antenna in hfss. A proposed microstrip dipole antenna with tapered arm has been simulated with hfss. Introduction in this tutorial, a dipole antenna will be. I was simulating a uhf dipole antenna on a 1u cubesat on the software ansys hfss. Enter the desired operating frequency in megahertz to get a good starting length for a dipole in both feet and meters. Ansoft high frequency structure simulator tutorial the dipole antenna april 2004 introduction in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulation software by ansoft. However, i am trying to simulate an edgefed dipole it is not a monopole, it is a extreme type of offcenter dipole which should have feed touching only one side of the dipole.
It includes instructions to create, simulate, and analyze a probe feed patch antenna. Design of highly efficient dipole antenna using hfss. Assigning lumped portselect the middle rectangle and assign a lumped port of say 50 ohms. Dipole antenna length calculator dipoles antennas are easy to build and can be very effective when placed half a wavelenth or more above ground. What is the best software used for antenna design and simulation. Thus in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulator. Thesis broadband impedance matching of antenna radiators. Basic understanding of the antenna we will model one of the most basic antennas so that we can simulate a load, and design a matching network. This video demonstrates how to create the geometry of the dipole antenna. Ansoft hfss can be used to calculate parameters such as sparameters, resonant frequency, and fields4.
Thus, the antenna geometry has two most important considerations. So its not exactly in line with any of the elements, which. In this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulation software by ansoft. The ansys hfss is industry standard software made to simulate 3d fullwave electromagnetic fields. This wire rod is split in the middle, and the two sections are separated by an insulator. Simulating graphenebased antenna using hfss electrical. Investigating em dipole radiating element for dual. The reason for this was antenna ground and satellite ground were common. Lets start with a simple planner dipole antenna design using hfss.
Comparison between the analytical expression for impedance of a dipolemonopole in eq. General navigation of software menus, toolbars, and quick keys. Draw a rectangle as shown below according to your design and resonant frequency specifications obviously lambda2. In this tutorial, a dipole antenna will be constructed and analyzed using. I need to draw a folded dipole, which forms part of a yagi antenna. Hence, it is called as half wave folded dipole antenna. The example will illustrate both the simplicity and power of hfss through construction and simulation of this antenna structure. I want to implement a dipole antenna which operates at 1800mhz to use it to check the. This is the most widely used antenna because of its advantages. Antenna magus is a software tool for the acceleration of the antenna design and modeling process.280 1358 1395 559 1019 1339 140 1291 1450 1006 7 1050 1498 885 1284 1163 505 1443 1462 81 604 494 1186 246 885 1115 605 466 42 143 777 1493 677 653 170