Rectangular waveguide hfss r objective getting started with hfss a tutorial using hfss, simulate an airfilled wr90 waveguide shown above. How do you identify whether to use lumped port or wave port in a microstrip patch antenna. Circular polarized probefed patch antenna procedure. Jul 06, 2015 this video demonstrates the use of several modeling tricks in ansys hfss to create a microstrip design and excite it with a lumped port. How does one do this for stripline when you have two ground planes top and bottom and the conductive line in the middle. Assign lumped port edit select by name select source hfss excitations assign lumped port set the lumped port as shown in the picture. Port washington, ny patch breaking local news events. How do you identify whether to use lumped port or wave. Example probe feed patch antenna anadolu university. Compare with lumped port and conductorbacked wave port results. The ansys hfss course will teach the students how to design and analyze highfrequency electronic components such as antennas, rfmicrowave components, and biomedical devices. Assign pec boundary to the patch, feedline and ground by right click on them. Note that a quarterwave length transformer was used to match the patch to a 50 ohm feed line.
Does anyone have an idea about the wave port or lumped port in hfss,which. Its the final year presentation at 75% of its full flow. Ansys hfss tutorial simulate and analyze an example of trace and via tianjian lu 02014 tianjian lu ece 546. 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. Pdf high frequency structure simulator hfss tutorial. How assign lumped port in hfss for stripline hi,everybodybecause the pcb line i will simulate located internally, so i can not use the wave port of hfss. The boundary selection of the uniform lumped port across a slot. In hfss desktop, click the on the standard toolbar, or select the menu item file new. Hfss assigning wave ports courserepsecen452spring2016. The port washington public library is using technology to help first responders and hospital workers during the outbreak of the coronavirus. The device must be connected by a section of transmission line or waveguide supporting traveling waves. Hfss initial project setup opening a new project if a new project and new design are not already opened, then.
Microstrip patch antenna simulation setup for microstrip fed patch antenna. I am getting error using in lumped port assignment in microstrip line feeding. Contribute to yuiphfss api development by creating an account on github. How do you identify whether to use lumped port or wave port. How do you design a port in hfss for cpw feed slot antennas.
Solver on demand intuitive pcb design entry for hfss chips, packages, channels, modules, designer layouts simulated with hfss automated boundary and port setups finite dielectrics and ground supported wave and lumped gap port. Analysis must include first three modes te10, te20, te01 3. Insert excitations lumped port inside the domain brings energy into the system. Hfss absorbs the wave at the radiation boundary, essentially ballooning the boundary infinitely far away from the structure. Converted to sparameters by a port impedance supplied by. High frequency structure simulator hfss tutorial otman mrabet enter the email address you signed up with and well email you a reset link. To open a help topic about a specific hfss dialog box, open the dialog box, and then press f1. But i need to create a lumped port inside the ring gap. Set solution type select the menu item hfss solution type. Assigning lumped portselect the middle rectangle and assign a lumped port of say 50 ohms. Weassumeyouhavesome experienceofdesigningprojectsusinghfss. In the case of differential ports, the symmetry planes must bisect all terminals of the port.
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. The length of the line must be long enough such that only one propagation mode exists on the reference plane of the port. Nov 23, 2018 lumped port uses a uniform parallel field on patch as source to excite structure. Microstrip line calculator analyze or synthesize a microstrip line based on substrate parameters and frequency. Analysis and design of rectangular microstrip patch antenna. For example for uwb design it will calculated for 3 ghz. Filter design using ansoft hfss university of waterloo. To excite a microstrip patch antenna fed by a microstrip line to calculate the input impedance and sparameters, as well as to compute the radiation pattern with a farfield feature, you can assign a lumped port on the gap between the end of the microstrip line. Introduction in this tutorial, a dipole antenna will be.
Abstract microstrip patch antenna is widely used because of its advantages but main drawback is its narrow bandwidth, to overcome this drawback software like hfss, cadfeko can be used for optimum patch design that includes design patch and ground plane dimensions, an antenna used in ism band which. Example probe feed patch antenna ansoft high frequency structure simulator v10 users guide 5. A quarterwave transformer is incorporated and a lumped port is used to excite the antenna having an input. Insert boundary conditions as required this example uses perfect e for the ground plane and patch. Hfss waveport size calculator figure out the correct waveport size to use in hfss for a microstrip line feed. Animating efield on planner dipole using hfss take it easy. 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. Do anyone have an hfss manual or tutorial explaining this process. The length of the patch for a rectangular patch antenna normally would be 0.
Parallel plate introduction to dispersion diagrams and eigenmode simulator. Define a surface for the lumped port at the end of the microstrip line. Ansys hfss simulates 3d fullwave electromagnetic fields. Microstrip patch antenna calculator calculate dimensions and edge impedance for desired resonant frequency. 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 hfss tutorial prepared by dr. The hfss getting started course introduces the ansys electronic desktop and familiarizes brand new hfss users with the graphical user interface gui and all of the steps in the hfss workflow. Microstrip patch antenna at 28 ghz for 5g applications. The parameters evaluated were gain, beamwidth and return loss. In wave port, tem mode of crosssection of the structure is calculated first, then the tem mode is used to excite.
To access online help from the hfss user interface, do one of the following. This is a rectangular slot microstrip patch antenna design tutorial using hfss software. The course will teach students how to effectively use ansys hfss to setup, solve and postprocess the results from high frequency electromagnetic simulations. The rectangular patch antenna is designed so that it can operate at the resonance frequency. Designing a planner dipole antenna is the easiest design for beginners. Unable to assign waveports in patch antennas in hfss.
The patch is designed using the substrate rogers rt duroid 5880 with a dielectric constant. This video demonstrates the use of several modeling tricks in ansys hfss to create a microstrip design and excite it with a lumped port. The aim of this tutorial is to show you how to use hfss to design planar antennas for wireless communications. I want to simulate the patch made of copper on a silicon substrate. In wave port, tem mode of crosssection of the structure is. The example will illustrate both the simplicity and power of hfss through construction and simulation of this antenna structure. Apr 19, 2016 hfss add solution setup and frequency sweep. 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. Lets start with a simple planner dipole antenna design using hfss. Use wave ports on the front and back faces of waveguide. An integration line also must be specified to indicate the path of electric field integration. For microstrip, you would make a rectangle from the upper conducter line to the the ground and insert an integration line from bottom to top.
General navigation of software menus, toolbars, and quick keys. Lumped port microstrip antenna set up comsol multiphysics. The excitation in this example is a rectangular port between the patch and the ground plane. Hfss is a highperformance fullwave electromagneticem field simulator for arbitrary 3d volumetric.
How to run ansys hfss electronics on nimbix nimbix. First the model of the microstrip patch antenna has to be drawn in hfss. Pdf high frequency structure simulator hfss tutorial richard. Since the field is strongest at the feed and the convergence is based on the sparameters at the port, hfss will refine the mesh more at the feed than on the airbox. Hi quirarte, we need to manually adjust the mesh on the airbox because of the way hfss generates the adaptive mesh. Any symmetry planes in your geometry must bisect the lumped port and its patch. Blade antenna model validation select the menu item hfss ie validation check click the close button note.
How assign lumped port in hfss for stripline sipi exchange. In the project explorer, rightclick excitation assign lumped port. Since we will be using a trl calibration when measuring our devices, it is important to use port deembedding in our hfss simulations so that the reference plane is the same for simulated and measured data. Objective this laboratory experiment provides a handson tutorial for drafting up an electromagnetic structure a stripline transmission line on a circuit board in the ansys. Basic electromagnetic field quantities and, for open.
Fig 6 design of single patch antenna in hfss simulation results the 2x2 patch array antenna is simulated using ansoft hfss. Hi, i was wondering how does one feed a stripline with a lumped port in hfss. Leftclick to define the origin of the efield vector. Compute the reflection and transmission coefficients of a frequency selection surface. Assign perfecte boundary to the rectangular patch and the trace. I am still curious to know why there is a difference in the results between the case with lumped rlcs and lumped. Ansys hfss getting started also available as selfpaced learning overview. Portlumped portfloquet portincident wavevoltage source current source. The face of radiation box should be lambda4 away from the patch lambda as per the lowest frequency. How assign lumped port in hfss for stripline, silist at freelists. Lumped ports are similar to traditional wave ports, but can be located internally. Ansys hfss is the industry leading 3d electromagnetic em simulation tool for high frequency and high speed electronic components including antenna design and placement.
The overall dimension of the antenna proposed antenna is 14. It consists of rectangular substrate and the metal trace layer as shown in fig. I proceed exactly as mentioned in the guide, but im not able to assign terminals. Lumped port uses a uniform parallel field on patch as source to excite structure. W p x y b x b y l p l f w f b t dx substrate x z dz air r2. Draw a rectangle as shown below according to your design and resonant frequency specifications obviously lambda2. How do you identify whether to use lumped port or wave port in a. How to set lumped port and wave port in hfss youtube. In all other lumped ports, one terminal is on the port, and the other is on the grounding material, as determined by the explicit ground reference. When exciting or terminating an rf device with a specific impedance value on a location where the transverse electromagnetic tem mode is expected, the lumped port feature is useful. Does anyone have an idea about the wave port or lumped port in hfss,which should be used especially for microstrip patch antenna in uwb range i. This port is located under the patch to draw the coax cable port, we start by drawing the infinite.
I konw for a microstrip line, i can draw the 2d port rectangle that touchs the signal with one edge and the opposite edge touch the reference ground plane. Your guide to lumped ports in the rf module comsol blog. To obtain the field patterns, intrinsic impedance and wavelength for the first 4 modes. The hfss antenna course explores antennarelated hfss topics such as radiating boundaries, including how well they absorb energy from different angles, and hybrid regions which connect different antenna simulations together.
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