View forum posts private message view blog entries view articles full member level 6 join date dec 2009 location land of the free posts 345 helped 195 195 points 3,285 level. The rectangular micro strip patch antenna is analyzed using high frequency structure simulator hfss v 11. Dec 08, 2018 this shows a design procedure of square loop antenna for 3 ghz frequency. Click the project file and select insert insert hfss design from the menu. Design and analyze a quarterwave monopole antenna operating at 400 mhz.
Rightclick the project file and select insert insert hfss design from the menu. Such an antenna would have two ports, for producing two modes a loop mode and a dipole mode. Microstrip patch antenna design santa clara university. High frequency structure simulator for 3d electromagenetics hfss is a platform that includes multiple simulation technologies for component or system design. Additional material was added for the following topics. Set solution type select the menu item hfss solution type choose driven terminal click the ok button analysis. This antenna has 140 mhz bandwidth, return loss at centre frequency has less than 16. This concept was undeveloped until the revolution in electronic circuit miniaturization and. You can even use a linked hfss simulation as the source. The loop antenna comes in an amazing number of configurations.
The objective is to provide a very thorough introduction to hfss as applied to antenna design, which may be followed stepbystep in hfss with the investment of only a few hours of time. Utilize commercial simulation software hfss for antenna performance analysis. Loops can be divided into two general classes, those in which both the total conductor length and the maximum linear dimension of a turn are. In this tutorial, a dipole antenna will be constructed and analyzed using. Mar 07, 2016 software used to design microstrip patch antenna hfss is commercial finite element method solver for electromagnetic structures from ansys corp. The horizontal polarization permits operation over all types of soil without the need for a ground screen. Wire antenna construction methods antenna modeling software mininec, winnec, and eznec for windows. Optimized rectangular loop antenna design for rfid contactless teleticketing o. The design of the slotted waveguide array antenna is a fairly complicated task. Under hfssanalysis setuplist or under analysis on the left, select the setup you created and view its properties.
This multipart tutorial explores the radiation properties of rectangular microstrip antennasspecifically, the radiation method, coupling of the feed structure to the microstrip radiating element or elements in the case of array structures, and the simple transmissionline. Nice sophia antipolis, cnrs, leat, umr 7248, 06903 sophia antipolis, france oumar. Probe feed patch antenna2 probe feed patch antenna getting started click the microsoft start button, select all programsansofthfss 12hfss 12 or double click on the hfss 12 icon on the windows desktop adding a project and design to insert a design into an open project. 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. The second contribution of this thesis is in the design of broadband, small size, modular arrays 2, 4, 8 or 16 elements using the distributed approach to impedance matching. This paper describes the design and simulation by high frequency structure simulator hfss of a probefed planar invertedf antenna pifa for the ultra wide band uwb personal area networks. It consists of patch elements on one side of a dielectric substate and a planar ground on the other side.
Rectangular loop antenna design the rectangular loop antenna design is geometrically described by five parameters fig. This bandwidth was improved by etching a uslot in the antenna patch. The idea of using a multiport loop antenna was introduced by r. Predicted data is shown for input impedance and radiation patterns.
The tools used were ansoft ensemble, hfss and hp momentum. Optimized rectangular loop antenna design for rfid. Pdf high frequency structure simulator hfss tutorial otman. Structure of patch antenna design in hfss athe 2x2 patch array antenna design is shown in below figure in 3d model. An electrically small multiport loop antenna for direction of. Rectaangular microstrip patch antenna for wireless. First the model of the microstrip patch antenna has to be drawn in hfss. Hfss electronic design automation software users guide high frequency structure simulator. Design and analysis of x band pyramidal horn antenna using hfss. This shows a design procedure of square loop antenna for 3 ghz frequency. It is a small space antenna and although extremely inefficient is capable of surprising results. Thesis broadband impedance matching of antenna radiators. This paper describes antenna design and simulation with ansys hfss, the industry leading 3d electromagnetic em simulation tool for high frequency and high speed electronic components. Ansys high frequency structure simulator hfss tutorial.
An inefficient antenna produces a smallamplitude em wave for the same feed power, and converts most of the power into heat. Another thing is as the voltagesource is time domain here, can we generate report from hfss that is showing frequency vs field intensity. The slim antenna presents a height of 2 mm and a bandwidth of more than 766 mhz. Introduction in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulation software by ansoft.
An indoor tv antenna consisting of a dipole and a loop is shown in figure 1. The frequency range of operation of loop antenna is around 300mhz to 3ghz. Software used to design microstrip patch antenna hfss is commercial finite element method solver for electromagnetic structures from ansys corp. Getting started with hfss v9 for antenna design october, 2003 this getting started training material is intended for new users of hfss. Loop antennas 51 a loop antenna is a closedcircuit antennathat is, one in which a conductor is formed into one or more turns so its two ends are close together. Plot the radiation pattern for a fullwave dipole antenna using mathcad. An rf current carrying coil is given a single turn into a loop, can be used as an antenna called as loop antenna. The magnetic field will be perpendicular to the whole loop carrying the current. The beauty of this antenna is the use of single patch which make it easy to fabricate consequently cost of antenna becomes cheaper. Clarify measurements of reflection coefficient of the antenna and its radiation pattern. It consists of rectangular substrate and the metal trace layer as shown in fig. Hfss is used to provide a good guide for the antenna design before the actual prototype is manufactured.
Dec 05, 2017 ansys hfss tutorial design of feeding network for patch array antenna 30ghz with delay lines duration. Probe feed patch antenna 2 probe feed patch antenna getting started click the microsoft start button, select all programsansoft hfss 12 hfss 12 or double click on the hfss 12 icon on the windows desktop adding a project and design to insert a design into an open project. Design parameters port extension height port extension height only applicable to 4 arm spirals spiral antenna only supports 2 or 4 arms inner radius antenna characteristics directivity polarization bandwidth medium circular wide ref. Tools options hfss options general tab check use wizards for data input when creating new boundaries check duplicate boundariesmesh operations with geometry click ok. Ansoft high frequency structure simulator hfss is used to simulate expected characteristics which are resonant frequency, bandwidth, vswr, and radiation pattern. This can be illustrated by the example of a simple loop. Following, we build the design and test our antenna to compare simulated results with experimental results to evaluate whether or not the designs goals were met. Inclusive internal and external electromagnetic mutual coupling between slots by michal grabowski 1 fig. Cell phone antennas, quadrafilar helix, specific absorption ratesar. Starting hfss follow instructions from the hfss stripline laboratorytutorial for any pop ups that may occur. The spr230 log spiral antenna is suitable for short range 0300 miles skywave circuits. Model spr230hf log periodic spiral antenna 230 mhz 5 dbi. Ansoft hfss can be used to calculate parameters such as sparameters, resonant frequency, and fields4. A multiport loop antenna is capable of operating in two distinct, orthogo nal modes a loop mode and.
Hfss treats the space around your design that hasnt been designated as a specific material as pec. The horn antenna is used extensively at microwave frequencies, both as feed antennas for parabolic re. Check out this longoverlooked design that requires no antenna tuner. The objective is to provide a very thorough introduction to hfss as applied to antenna design, which may be followed stepbystep in. In hfss desktop, click the on the standard toolbar, or select the menu item file new. Nonresonant slotted waveguide antenna design method. After completing this tutorial, you will be able to calculate the parameters of an antenna and decide which antenna suits for which type of application and why.
Design and analysis of micro strip antenna using hfss software. Once an antenna design is chosen, we design our antenna using a simulation program. The design of basic antennas for handset applications, experimented with a simple. Below, the designed structure on hfss will be discussed. This tutorial is meant to provide the readers a detailed description of the antennas used in communication systems. In the design of any antenna radiator, single or multielement, a significant amount of time and resources is spent on impedance matching. Hfss stands for high frequency structural simulator. Design impedance matching networks for the two antennas in parts a, b, and c. Thus in this tutorial, a dipole antenna will be constructed and analyzed using. It requires including an influence of the internal by a supplying slots waveguide and the external through the open space mutual coupling between radiating slots on a radiation pattern. Loop antenna design equations a typical rectangular printed loop antenna structure is shown in figure 1, where.
Change the drawing plane back from zx to xy draw a box and fill in the values as shown below. The currents through this loop antenna will be in phase. Design and simulation by hfss of a slim uwb pifa antenna. The antenna operates over the frequency band of 2 to 30 mhz without need for a coupler. Now, i want to wrap the antenna on a cylindrical surface and simulate using hfss tool. The next step is to learn some of the options for getting better performance for future product designs. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The designed horn antenna is xband pyramidal horn antenna working for x band frequency range. A microstrip antenna consists of conducting patch on a ground plane separated by dielectric substrate. If a new project and new design are not already opened, then. There are broadly two approaches to impedance matching.
Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line. Because of this, we need to define an airbox around our design. The antenna was designed and simulated using ansoft hfss r 12. It is one of the several commercial tools used for antenna design. The base hfss offering includes 3d and layout interfaces, 2. Fabricate a single antenna to operate in microwave frequency range. Under hfss analysis setuplist or under analysis on the left, select the setup you created and view its properties. The design of arrays comprising small number of elements a cannot follow the infinite array design paradigm. Generally people dont think of radiofrequency radiation in terms of discrete. Their work is approved for submission in partial fulfillment of the requirements for the degree of bachelor of technology.
Hopefully, this tutorial raises the awareness of loss and efficiency issues with small antennas. Solve loop the solution process is fully automated. These parameters are the track width d, the track gap e, the thickness t of the conductors and the number of turns n. Ansys hfss tutorial design of feeding network for patch array antenna 30ghz with delay lines duration. Design and analysis of x band pyramidal horn antenna using. That means lambda will be 100mm and as it is square shaped, a should be 25mm. This paper describes antenna design and simulation with ansys hfss, the industry. Figure 1 highlights several antenna related applications with emphasis on antennas on or around other structures.