The materials properties are rarely measured at high frequencies so the user must measure it themselves. What is the optimum height of a floquet port over a periodic structure. How to simulate frequency selective surface fss youtube. What is the optimum height of a floquetport over a periodic. If my fss structure has some rlc component, is that ok to simulate the hfss. The analysis of the infinite structure is then accomplished by analyzing a unit cell. This tutorial covers how to use master slave boundary conditions of hfss. Study of ansoft high frequency structure simulator guided by presented by prof. Techniques for analyzing antenna lattice structures. Kumar vaibhav srivastava department of electrical engineering indian institute of technology, kanpur, india.
Efficient and accurate simulation of antenna arrays in hfss padt. Using hfss successfully at 77ghz data sheets give you the dielectric constant and the loss tangent or do they. Essential questions about using floquet ports in periodic structures. Example unit cell analysis infinite array analysis of an open ended waveguide with plug array this example is intended to show you how to setup and postprocess an a phased array using unit cell analysis using hfss. However, keep in mind that the number of modes that are absorbed by the floquet port are determined by. The dimensions of antenna can be found in the hfss simulation file. A unit cell with two cycles of phase range and very low reflection loss is designed. Fundamental principles, concepts, and use slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Aug 18, 2016 this tutorial covers how to use master slave boundary conditions of hfss to simulate fss in terahertz region. How do you identify whether to use lumped port or wave. High frequency structure simulator for 3d electromagenetics hfss is a platform that includes multiple simulation technologies for component or system design. 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.
The length of the line must be long enough such that only one propagation mode exists on the reference plane of the port. Weassumeyouhavesome experienceofdesigningprojectsusinghfss. Nov 27, 2012 connecting ovs bridges with patch ports 27 nov 2012 filed in tutorial. The length of the patch for a rectangular patch antenna normally would be 0. It also covers how to change the angle of incidence with the help of floquet ports. How far from my structure must the floquet port be to give accurate resluts. I am trying to implement microstrip reflectarray antenna in hfss, basic one. The rectangular patch antenna is designed so that it can operate at the resonance frequency. Hfss floquet ports getting started with hfss floquet ports. For example, if the maximum angular deviation of a cylinder is set to 30 degrees, 12. The floquet port is placed at the top of an air box light blue, a master boundary green is shown on the xaxis, and a slave boundary pink is shown at. To obtain the field patterns, intrinsic impedance and wavelength for the first 4 modes. The following tutorial is for ebg simulation using cst.
What is the optimum height of a floquetport over a. Journal of computing design of coaxial fed microstrip patch. Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line. Hfss hybrid technologies the femie hybrid technology is built upon hfss fem, ie mom and the patented ansys domain decomposition method ddm to solve electrically large and complex systems.
Hfss simulation of one direction periodic strucutres. Chief examples are planar phased arrays and frequency selective surfaces when these may be idealized as infinitely large. Contribute to hrg labhuff researchgroup development by creating an account on github. Similar to performing a floquet mode expansion, lbcs allow imaging of a unit cell into an infinite array of such cells. Compute the reflection and transmission coefficients of a frequency selection surface. This video demonstrates the use of several modeling tricks in ansys hfss to create a microstrip design and excite it with a lumped port. Rectangular waveguide hfss r objective getting started with hfss a tutorial using hfss, simulate an airfilled wr90 waveguide shown above. The device must be connected by a section of transmission line or waveguide supporting traveling waves. Fssfloquet the video demos how to set up periodic boundary and floquet port for fss structure. Ansoft hfss mesh menu go back contents index using the same angular surface deviation for large objects and small objects will result in similar faceting fo r similar surfaces, without regard to the objects size. I have problem about floquet port and masterslave boundary assignment in hfss. Pdf high frequency structure simulator hfss tutorial. Metamaterial srr unit cell permittivity, permeability from. Analysis and design of rectangular microstrip patch antenna.
Connecting ovs bridges with patch ports scotts weblog. Floquet port excites and terminates waves propagating down the unit cell. The base hfss offering includes 3d and layout interfaces, 2. Tutorial on modeling of metamaterial structure in ansys hfss. Ansys hfss is the industry leading 3d electromagnetic em simulation tool for high frequency and high speed electronic components including antenna design and placement. Ender ozturk postdoctoral researcher north carolina. Hfss filter design finite element method normal mode. Unit cell simulation using master and slave boundary conditions of. This video coantains design procedures of a square shaped metamaterial unit cell using cst and hfss.
First the model of the microstrip patch antenna has to be drawn in hfss. Thanks a lot for answering folks, i used floquet port and masterslave boundary. Metamaterial fss unit cell design using hfss part 1 youtube. Unit cell simulation using master and slave boundary. Simplifying your search query should return more download results. To model the infinite plane wave i am using masterslave boundaries with a floquet port. If you continue browsing the site, you agree to the use of cookies on this website. While defining the number of modes during waveport excitation of patch.
Ansys hfss hfss contains multiple simulation engines in one package, each targeted toward a specific application or simulation output. The video demos how to set up periodic boundary and floquet port for fss structure simulation. It consists of rectangular substrate and the metal trace layer as shown in fig. Hfss is a highperformance fullwave electromagneticem field simulator for arbitrary 3d volumetric. I am using hfss v11 to simulate a unit cell in an infinite periodic structure that is excited by a plane wave. Hfss tutorial courserepsecen452spring2016 wiki github. This workshop is intended to show how to simulate and analyze a microstrip patch antenna using ansys hfss. In the process of simulating a periodic his, a floquetport needs to be. The reason that i ask this question is that i have seen that in one of ansys tutorials. Tutorial on saptarshi ghosh, iit kanpur, india modeling of metamaterial absorber structure in ansys hfss saptarshi ghosh thesis supervisor.
However, unlike a waveguide simulator, lbcs permit unconstrained userassigned field relationships between the master and slave boundaries composing the lbc pair. The size of feeding patch and thickness of dielectric. Aug 31, 2019 the video demos how to set up periodic boundary and floquet port for fss structure simulation. For example, i set the e0 vector to 0,0,1,k vector is 1,0,0, but i want to. Portlumped portfloquet portincident wavevoltage source current source. Hfss assumes that the wave port is connected to a semiinfinite long waveguide that has the same crosssection and. In my design, the unit cell needs to be infinity extended in only one direction and finite in the other direction. In the study, simulations are conducted using hfss program with floquet port incidence. Probe feed patch antenna2 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.
Floquet port 12 introduction floquet ports in hfss the floquet port in hfss is used exclusively with planarperiodic structures. Ansoft hfss 3d boundary manager go back contents index sources port wave ports lumped gap sources considerations when defining ports incident wave voltage and current sources magnetic bias port by default, the interface between all 3d objects and the background is a perfect e boundary through which no energy may enter or exit. Patch antenna design using hfss ozen engineering and ansys. Ansys high frequency structure simulator hfss tutorial indico fnal. Simulation of a ring resonator array a frequency selective surface fss is a periodic assembly of one or twodimensional resonant structures, either as apertures in a thin conducting sheet or as metallic patches on a substrate, which may have a bandpass or bandstop function respectively. For example, figure 4 shows a microstrip patch antenna that we intend to. How do you identify whether to use lumped port or wave port in a microstrip patch antenna. How to excite the array and record the reflection for microstrip.
Periodic boundaries in ansoft hfss w periodic bc, linked bc, masterslave pairs w yeah they are all the same thing. Hfss floquet ports getting started with hfss floquet ports ansys,inc 275technologydrive canonsburg,pa15317 tel 17247463304 fax 17245149494. For twodimensional infinite periodic structures in hfss, the slave and master boundaries and floquet port are used. Metamaterial unit cell square srr design using cst and hfss part 2. P d kale mithilesh naphade payal wankhade dipika deotalu. For example, figure 4 shows a microstrip patch antenna that we. Apr 19, 2016 hfss add solution setup and frequency sweep. Design and analysis of an xband phased array patch antenna core.
Should we use a floquet port in either side of the structure. Hfss floquet port near field analysis floquet port nearfield. Hfss masterslave simulation setup of a reflectarray consisting of an aluminum backed mylar substrate of height h, square unit cell periodicity p, and aluminum patch side length l. For example, large amounts of continuous power can be obtained using solar. What is the optimum height of a floquetport over a periodic structure.
Feb 02, 2016 coaxial feed microstrip patch antenna using hfss 1. In this post, ill show you how to connect two separate ovs bridges using a patch port, and then well. Techniques for analyzing antenna lattice structures richard remski, matt commens, and john silvestro ansoft corporation wireless and microwave technology conference tutorial session ra2 thursday, april 07, 2005 clearwater, fl. Does anyone have an idea about the wave port or lumped port in hfss,which should be used especially for. Hfss running the simulation and checking the progress. I want to design a patch antenna b y using cst software but i am facing a problem with boundaries conditions. Floquet ports in hfss the floquet port in hfss is used exclusively with planarperiodic structures. How to assign floquet port and masterslave vector direction. The measure data dialog appears, and the create line dialog tells you to draw the a lattice vector on the plane of the face. Spurred to action by a brief mention at the bottom of a blog post, i began digging into the use of patch ports to connect multiple open vswitch ovs bridges.
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