Assign lumped port hfss software

The ansoft high frequency structure simulator hfss is a fullwave electromagnetic em software package for. Generally you should use lumped port if the feed is a line and if the reference impedance is known. I used assign excitation lumped port and then drew the integration line along. A comparison of ansoft hfss and cst microwave studio. How do you identify whether to use lumped port or wave port in a. I got the resonant frequency of my device with lumped components. This excitation is commonly used when the far field region is of primary interest. Introduction in this tutorial, a dipole antenna will be. What is the difference between lumped ports in a driven modal. Assign solution type driven terminal is recommended for a patch antenna analysis 2. How to set lumped port and wave port in hfss youtube. Using mixedorder elements enables hfss to assign an element order based. Create an air box with dimensions on every side not less than a quarter wavelength of the structure, see figure below.

Before the full threedimensional electromagnetic field inside a structure can be calculated, it is necessary to determine the excitation field pattern at each port. How do you identify whether to use lumped port or wave. Draw a rectangle as shown below according to your design and resonant frequency specifications obviously lambda2. Getting started with hfss georgia institute of technology. The mission of engineering tutorials center etc is to. Assign lumped port edit select by name select source hfss excitations assign lumped port set the lumped port as shown in the picture. Designing a planner dipole antenna is the easiest design for beginners. In the case of position 1, theres no transmission line but only a 50ohm lumped port right there, from the gnd plane to the feed.

Then i am trying to assign lumped port to both of those probes, but i usually get errors such as. Hfss assigning wave ports courserepsecen452spring2016. Insert a new circuit design into your aedt project then you can drag and drop your hfss model with lumped port into the circuit schematic to create a dynamically linked hfsscircuit model. Ansys hfss software allows calculation of finitesized phasedarray antennas with all electromagnetic effects, including elementtoelement coupling, and critical array edge effects.

You can assign a port to any 2d object or 3d object face. Rename this object to port1 and open the createrectangle window. 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. For the lumped port, you need also to assign the integration line which shows the direction of the e fields between the two metals and hence define the excitation mode. Name the port source and leave the default values for impedance. Lumped rlc a parallel combination of lumped resistor, inductor, andor capacitor. The length of the line must be long enough such that only one propagation mode exists on the reference plane of the port. Pentium based computer 128mb ram minimum 8mb video card minimum mouse or other pointing device. Hfsswave port and lumped port assignment in single mode excitation, the direction of integration line should be in the direction of e field pattern of the dominant mode, and in case of multimode excitation, the direction of integration line for each mode, should be in the direction of e field pattern of the respective mode.

Next assign the appropriate impedance to the port, default is 50. Ansys hfss software is the industry standard for simulating 3d, fullwave. Silist how assign lumped port in hfss for stripline. No conductors were found on port 1, so auto assignment of conductors on that port cannot proceed, or too few conductors were found on port 1. Lumped port iv known a lumped port represents the rf source. To set up an hfss design, follow this general procedure. Animating efield on planner dipole using hfss wmalik. To start crating your microstrip geometry and set up the project, please proceed with the following steps note.

Changing the specified height width of that port changes the amount of current that port excites in the attached inductor, even when the specified terminal current for the port is left constant at 1 a. In the project explorer, rightclick excitation assign lumped port. Problem description getting started create the 3d model. 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. I want to assign wave port exciatition to the signal inputtrace. Lets start with a simple planner dipole antenna design using hfss. In this tutorial, a dipole antenna will be constructed and analyzed using the hfss simulation software by ansoft.

How to run ansys hfss electronics on nimbix nimbix. Hi, wave port is a perfect definition of a port which software calculates field distribution on. Click the microsoft start button, select programs, and select the ansoft, hfss 10. The course will teach students how to effectively use ansys hfss to setup, solve and postprocess the results from high frequency electromagnetic simulations. The 3d modeler window appears to the right of the project manager. This video demonstrates the use of several modeling tricks in ansys hfss to create a microstrip design and excite it with a lumped port. Animating efield on planner dipole using hfss take it easy. Click themicrosoft start button,select programs and select the ansofthfss9hfss9 or double click the. The device must be connected by a section of transmission line or waveguide supporting traveling waves. Assign wave port to it and deembed to the lumped load. Ansys hfss simulates 3d fullwave electromagnetic fields.

In this design we will have two wave ports, one on each side of the transmission line. Does anyone have an idea about the wave port or lumped port in hfss,which. Ansys hfss is a 3d electromagnetic em simulation software for. When the septum is located centrally opposite port 1, it divides the signal and directs it evenly towards the ou tput ports, port 2 and port 3. I konw for a microstrip line, i can draw the 2d port rectangle that touchs the. Lumped ports confusion what are they supposed to be. Weassumeyouhavesome experienceofdesigningprojectsusinghfss. Define a surface for the lumped port at the end of the microstrip line.

By following the steps in this guide, you will learn how to perform the following tasks in hfss. Hfss uses an arbitrary port solver to calculate the natural field. Using the mouse, position the cursor to the bottomcenter of the port. Change the axis to y and close and reopen the createrectangle window. Simulation software for multichannel coil design and sar. Filter design using ansoft hfss university of waterloo. Significantly reduce engineering time interacting with software lightweight interface for geometrically complex structures direct import of cadence products using cadence extracta allegro. Select the middle rectangle and assign a lumped port of say 50 ohms.

The example will illustrate both the simplicity and power of hfss through construction and simulation of this. Use select surface to choose the side surface of the air box at the end of the feed line. To create the first wave port, draw a 2d rectangle. It is named hfssdesignn by default, where n is the order in which the design was added to the project. Leipzig, germany abstract we present a comparison of rf simulations with ansoft hfss and cst microwave studio software, for a commercially available 7t multichannel coil. Lumped port uses a uniform parallel field on patch as source to excite structure. How assign lumped port in hfss for stripline, silist at freelists. Mar 09, 2015 an example of a userdefined lumped port geometry.

Im wondering where i can put it correctly as in the 1st attached antenna. All ansoft software files are ascii text and can be sent conveniently by email. Assigning lumped portselect the middle rectangle and assign a lumped port of say 50 ohms. Lumped ports are similar to traditional wave ports. I assigned the rectangles with the lumped rlc boundary condition.

I proceed exactly as mentioned in the guide, but im not able to assign terminals. With one of the rectangles selected, right click on the excitation icon in the project window. The ansys hfss course will teach the students how to design and analyze highfrequency electronic components such as antennas, rfmicrowave components, and biomedical devices. Blade antenna assign excitations select port from the sheets section of the modeler tree select the menu item hfss ie excitations assign lumped port port name. Unable to assign waveports in patch antennas in hfss.