Introduction antenna definitions w what is an antenna. Open a previously saved project using the fileopen command. Slave boundary master boundary origin vaxis uaxis hfss boundary descriptions. The antenna cookbook w space radiation boundaries at least. For each pair of opposing cell faces, define one face as master boundary and the other as slave boundary, with the first face as its master. Ansoft hfss 3d boundary manager boundaries perfect e perfect e perfect h natural by default, the electric field is assumed to be normal to all surfaces exposed to the back finite conductivity ground, representing the case in which the entire structure is surrounded by perfectly con impedance ducting walls. To obtain the field patterns, intrinsic impedance and wavelength for the first 4 modes. To simulate an infinite free space, a perfect matched layer pml boundary is defined on top of the airbox as shown in fig. Rightclick in the toolbars area at the top of the desktop. In the options tab make sure to check both save fields and mesh and copy geometrically equivalent meshes. Inside youll find a pdf tutorial guide named hfssfloquet. Most of the statements below are fairly generalized, and may not apply to all hfss projects. This presentation is one in a series of port tutorials, intended to help users better understand the. When you first start hfss a new project with a new design will be automatically added to the project tree.
Fundamental principles, concepts, and use boundaries examples perfect h in brief the perfect h boundary can be used to create a natural boundary through which fields propagate, or it can be used to model a perfect magnetic conductor. Aug 30, 2016 40 page ansys, inc page 41an introduction to hfss. Hello i m a new user of hfss, i try to simulate an antenna when i assign a perfect e boundary to the top face of my antenna and ground plane i get an s1116 db that is correct but when i dont use it i get s1110 db am i obliged to use this boundary. Ansoft hfss 3d boundary manager boundaries perfect e perfect e perfect h natural by default, the electric field is assumed to be normal to all surfaces exposed to the back finite conductivity ground, representing the case in which the entire structure is surrounded by perfectly con. Hfss ansys hfss is a 3d electromagnetic em simulation software for designing and simulating highfrequency electronic products such as antennas, antenna arrays, rf or microwave components, highspeed interconnects, filters, connectors, ic packages and printed circuit boards. Tools options hfss options general tab check use wizards for data input when creating new boundaries check duplicate boundaries mesh operations with geometry click ok. Overwrite the perfect e boundary that is assumed between the virtual object and the background with a radiation boundary assigned to the virtual objects surface. For example, if a check box appears next to the project manager command, then the project manager window is currently visible on the desktop. Ansoft hfss background or outer boundary when applied properly, they can be used to reduce the complexit y solution time computer resources. Radiation boundary cannot be used in the eigenmode simulation.
Ansoft hfss background or outer boundary when applied properly, they can be used to reduce the complexit y. If you are looking for hfss tutorial then this video playlist will help you to learn antenna. Hfss tutorial starting ansoft hfss click themicrosoft start button,select programs and select the ansofthfss9hfss9 or double click the hfss9 icon on the desktop creating projects. Hfss boundaries assign perfect e perfect electric conductor o front and back face. This is the tutorial video on ansoft hfss software. Hfss places a boundary condition on the wave ports edges to make sure the 2d eigenmode solution is finite sized typically the edge boundary takes the boundary condition defined in the 3d geometry. For the selected surface or 2d object, select impedance as the boundary type.
Ansoft hfss material manager go back contents index material database the material database consists of a group of predefined materials that may be assigned to individual objects in a model. A brief tutorial on microstrip antennas part 1 microwaves. Overview of hfss fullwave frequencydomain 3d field solver. A new project is listed in the project tree in the project manager window. Perfect electric and magnetic boundary l finite conductivity boundaries l lumped rlc boundary l symmetry boundary l periodic boundary l frequency dependant materials l higher and mixed order elements l curvilinear elements l fully automated adaptive l mesh refinement s,y,z matrix results l e, h, j, p field results l. Hfss introduction quick and complete introduction of. Introduction to hfss excitations customer training material example. Overview antenna simulated using an abc absorbing boundary condition parametric analysis antenna simulated using an pml perfectly match layer three simulations l20, l10 and l4. Rightclick on the name of your 2d microstrip line object in the object list and select assign boundary perfect e and click ok on the window that appears. Periodicity is achieved using masterslave boundaries. Coordinate system, masterslave pairing and phasing w master and slave boundaries used to model a unit cell of a repeating structure w master and slave boundaries always paired. Frequency selective surface hfss usage wiki fandom. Start button on the lower left corner of your screen, click on it, then go to programs.
Ansoft corporation hfss field calculator cookbook cautionary notes the following text provides some brief cautionary notes regarding use of the postprocessor field calculator in ansoft hfss. This manual describes how to get started with hfss by guiding you through the setup, solution. If you selected solve inside in the material manager, ansoft hfss treats the metal as a 3d resistor with a conductivity equal to the selected metal. When a wave ports edge touches a radiation boundary the edges boundary is defined as pec. Ansys high frequency structure simulator hfss tutorial august 16. Periodic boundaries in ansoft hfss w periodic bc, linked bc, masterslave pairs w yeah they are all the same thing. The first step in using hfss to solve a problem, is to create a project in which the data associated with the problem can be saved. Assign a perfect h boundary to the annular feed ring. Ansys high frequency structure simulator hfss tutorial. Boundary conditions can be grouped into three categories material properties for sheetsfaces boundary condition finite conductivity surfaces perfect e electric. Radiation boundaries ansys hfss for antenna design.
Apr 19, 2016 rightclick on the name of your 2d microstrip line object in the object list and select assign boundary perfect e and click ok on the window that appears. Add a linear step sweep for the variable px from 15 deg to 180 deg with 15 deg steps. Hfss assigning boundaries to 2 d objects coursereps. Ansoft hfss 3d boundary manager boundaries pages 1. The ansoft high frequency structure simulator hfss is a fullwave electromagnetic em software package for calculating the electromagnetic behavior of a 3d structure. High frequency structure simulator for 3d electromagenetics hfss is a platform that includes multiple simulation technologies for component or system design. Reduced by eliminating conductor loss perfect h surface perfect h. A check box will appear next to a command if the item is vi sible. Hfss boundaries assign perfect h perfect magnetic conductor. Lecture 11 hfss boundary conditions transmission line normal. As discussed earlier, your port choice affects your radiation boundary. Introduction to hfss perfect e and perfect h boundaries customer training material. Hfss tutorial pdf hfss tutorial pdf are you looking for ebook hfss tutorial pdf.
Ansoft hfss tutorials pdf click to download full softs. Based on this discussion it can be seen that the new febi boundary is the perfect combination of the fem and ie so. Perfect electric conductor will create ideal conditions for. In the presence of many stepbystep examples, illustrations, modeling results. Hybrid finite element boundary integral method john silvestro senior member technical staff. Mar 03, 2018 hfss tutorials for beginners to professionals. Select the menu item hfss mesh operations assign on selection length based. Ansoft hfss 3d boundary manager go back contents more index boundaries perfect e perfect hnatural finite conductivity impedance square layered impedance lumped rlc radiation symmetry planes matching boundaries slave infinite ground planes to create an impedance boundary. Go to ansoft boundaries assign finite conductivity. Patch 3 click the ok button to assign the perfect e boundary 1 click hfss boundaries assign perfect e the perfect e boundary dialog opens. Nov 15, 2018 hfss ansys hfss is a 3d electromagnetic em simulation software for designing and simulating highfrequency electronic products such as antennas, antenna arrays, rf or microwave components, highspeed interconnects, filters, connectors, ic packages and printed circuit boards. Ansoft hfss 3d boundary manager sources port port wave ports by default, the interface between all 3d objects and the background is a perfect e bound lumped gap sources ary through which no energy may enter or exit.
Lecture 11 hfss boundary conditions transmission line. Fundamental principles, concepts, and use boundaries examples perfect h in brief the perfect h boundary can be used to create a natural boundary through which fields propagate, or it can be used to model a perfect. Hfss assigning boundaries to 2 d objects courserepsecen452. If you work in the field of microwave, creep the program ansoft hffs, this book is for you contents this document discusses some basic concepts and the. A frequency selective surface fss is a periodic surface whose response to incident radiation varies with frequency. I figured i would pick it up during the summer break. For the sx boundary, the phase delay is set to 180, while the sy boundary has a phase delay of px. For a complete discussion on all of the boundary conditions available within hfss see appendix 5. Introduction in this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulation software by ansoft. 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. Right click on it and select assign excitation waveport.
You could instead use a finite conductivity boundary and select a material from the materials library e. 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 model utilized for design and performance estimates. Hfss tutorial starting ansoft hfss click themicrosoft start button,select programs and select the ansofthfss9hfss9 or double click the hfss9 icon on the desktop \ creating projects. Techniques for analyzing antenna lattice structures. This example is intended to show you how to apply a radiation boundary and how its size can impact the solution. Lecture 11 hfss boundary conditions free download as pdf file. 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.
Can also make side walls of port perfect h boundaries w h. This boundary condition matches the electric field at the slave boundary to the field at the symmetry boundary. Tools options hfss options general tab check use wizards for data input when creating new boundaries check duplicate boundariesmesh operations with geometry click ok. You specify the name of the project when you save it using the filesave or. Ansoft hfss 3d boundary manager 3d boundary manager. My school doesnt really teach hfss and considering it is heavily used in the industry.
Hfss introduction quick and complete introduction of hfss. You specify the name of the project when you save it using the filesave or filesave as. Enable users to model only one period of a periodic structure, which will reduce the size of a design. Wit h all faces selected, rightclick the boundary icon in the object explorer and select boundary assign radiation. For example, if you are modeling a simple airfilled.
You will be glad to know that right now hfss tutorial pdf is available on our online library. Global material database the global material database is the primary material database used throughout all maxwell software. Basic electromagnetic field quantities and, for open. Ansys high frequency structure simulator hfss tutorial august 16, 2018 1 mark jones pacific northwest national laboratory. Assign a perfect e boundary to the trace to select the trace. Rectangular waveguide hfss r objective getting started with hfss a tutorial using hfss, simulate an airfilled wr90 waveguide shown above. Any of you guys have any good tutorials on hfss particularly for antenna design.
Filter design using ansoft hfss university of waterloo. The hfss model using the febi boundary is shown in figure 5. The base hfss offering includes 3d and layout interfaces, 2. With our online resources, you can find hfss tutorial or just about any type of ebooks, for any type of product. Ansoft high frequency structure simulator tutorial the dipole antenna april 2004. Hfss introduction o basics of 3d electromagnetic simulation and techniques, theory and design flow, gui tutorial 1 circular horn antenna boundary conditions and excitations solution setup. The wave equation solved by ansoft hfss is derived from the differential form of.