Activate port sweep comsol Enter a Sweep parameter name to indicate the name of the model parameter that controls the port activated in each step of the sweep. Before making the port sweep, the parameter must also have been added to the list of parameters in the Parameters section of the Parameters node under the Global Definitions node. m. 1, see COMSOL's main site Set a port/terminal with a voltage on one boundary and add a "gnd" on the other + solve it works quite OK The Port Sweep Settings section in the Electromagnetic Waves, Activate Slit Condition. This is the name of the parameter to be used in a parametric sweep, here it should represent the Port The Port Sweep Settings in the Magnetic Fields interface, Input Sweep Settings in the Magnetic and Electric Fields interface, Manual Terminal Sweep Settings section in the Electrostatics interface and the Manual Terminal Sweep Settings section in the Electric Currents interface describe how to cycle through the ports and terminals, compute the entire S-matrix and export When activated this invokes a parametric sweep over the ports/terminals in addition to the automatically generated frequency sweep. Create a parameter with the same name under Global Definitions>Parameters 1. The balanced ports out of a four-port network are configured by a Select to enable the Activate port sweep option (not selected per default). The formulation is stationary except for use together with other physics COMSOL RF Module. 3 In the Settings window for Port, locate the Port Properties section. 0, the mode field represented the incoming (exciting Abstract: We present a 3-D port sweep method in a lossy silicon photonic crystal resonator to demonstrate the capabilities of COMSOL's frequency domain analysis with input and output ports. When the port sweep is activated, the options in the Incident Mode Settings in the port conditions are deactivated and The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Global Port Settings section. This is the name of the parameter to be used in a parametric sweep, here it should represent the Set the Mode phase θ in (SI unit: rad) for the port mode field. The port sweep functionality is used to reconstruct the full scattering matrix S ij by automatically sweeping the port excitation through all the ports included in the model. g. Notice that a change of the Mode phase, either on the exciting The Port boundary condition, introduced in version 5. For the first port, wave excitation is on by default. Posted 2019年3月27日 GMT-4 11:41 Version 5. if I consider float at infinite in place of ground, the Electrostatic module does not work with terminal port without any ground node. The name given must match the model parameter, defined under In the Settings window for the “Electromagnetic Waves, Frequency Domain (emw) root node, there is section “Port Sweep Settings” where you can check “Activate port sweep” option, as shown in the attached image. The generated Set the Mode phase θ in (SI unit: rad) for the port mode field. The instances are launched as external batch jobs from a Batch Sweep study run in the GUI. We will create a parameter by the same . G L O B A L D E F I N I T I O N S. I manually set port 1 and port 2 on then I simulated. The default is 0 radians. Fadhel Habeeb . So, if you have any idea how it CONTENTS| 7 Electric Scalar-Scalar Potential Coupling . You can also search for information: Select the Activate port sweep check box to switch on the port sweep. If, for example, there are two ports with the numbers 1 and 2 and Port 1 is the inport, When ports with Activate slit condition on interior port enabled and Slit type set to Domain-backed Port 1 1 In the Physics toolbar, click Boundaries and choose Port. 2 In the Settings window for Port, locate the Boundary Selection section. In a separate simulation file, I have activated each ports manually and the simulation works fine in that case. Note that a port parameter appears by default. When selected, this invokes a parametric sweep over the ports in addition to the automatically generated Yes, you can disable the "activate port sweep" , and select two ports on manually. This method benefits from the advantages of the S-parameter analysis to characterize the input and output coupling into the resonator. , In the Settings window for the “Electromagnetic Waves, Frequency Domain (emw) root node, there is section “Port Sweep Settings” where you can check “Activate port sweep” option, as Yes, you can disable the "activate port sweep" , and select two ports on manually. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help. This is the name of the parameter to be used in a parametric sweep, here it should represent the Port The Solid Mechanics (solid) interface (), found under the Structural Mechanics branch () when adding a physics interface, is intended for general structural analysis of 3D, 2D, or axisymmetric bodies. We only add the selection containing these boundaries where the port variables are calculated. In the Settings window for the “Electromagnetic Waves, Frequency Domain (emw) root node, there is section “Port Sweep Settings” where you Full S Parameter Matrix - I activated port sweep, but S12, S22 shows no data. The port size is relatively small compared to the entire modeling domain, and the saved file size with the fine frequency step is more or less that of the regular discrete frequency sweep model when only the solutions on the port boundaries are stored. (e. Enter the Sweep parameter name, the default is PortName. With port sweep activated, a parametric sweep over the port name is added in the study. Port 2 1 In the Physics toolbar, click Boundaries and choose Port. The S-parameter matrix is required to process the mixed-mode S-parameters. The boundary condition is used to prescribe a nonreflecting condition at the end of a waveguide (an outlet) as well as to set up an incident wave at a The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Global Port Settings section. Select the Mode shape normalization as Amplitude normalization (the default), Power normalization, or Intensity normalization. This will This can be done automatically using the "Activate port sweep" setting. This is the name of the parameter to be used in a parametric sweep; it should represent the Port The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Global Port Settings section. The section only exists for 3D and 2D axisymmetry. png; 0 Replies Last Post 2024年5月10日 GMT . Activate Slit Condition Select the Activate slit condition on interior port check box to use the Port boundary condition on interior boundaries. This option is used to compute the full scattering matrix when Port conditions are used. The name given must match the model parameter, defined under The Solid Mechanics (solid) interface (), found under the Structural Mechanics branch () when adding a physics interface, is intended for general structural analysis of 3D, 2D, 1D, or axisymmetric bodies. When selected, this invokes a parametric sweep over the lumped ports in addition to the automatically generated frequency sweep. I found out so far that I have to define Identitiy Note that by default the first port added has the excitation turned on. 1 In the Model Builder window, right-click Global Definitions and choose Parameters. DWGreve DWGreve Consulting In the Settings window for the “Electromagnetic Waves, Frequency Domain (emw) root node, there is section “Port Sweep Settings” where you can check “Activate port sweep” option, as shown in the attached image. The desired modes will be activated one at a time using the port sweep functionality. 電磁界シミュレータを使うときに間違いやすい問題についてメモ代わりに記述する。 励振ポートをSweepしたい場合は“Electromagnetic Waves, Frequency Domain (emw)のノードから“Port Sweep Settings”のセクションで“Activate port sweep” のオプションを使 Here, turn it off; you can then select any port as source and run the model and use a port sweep to excite the desired ports. 18. The Frequency Domain Source Sweep study is another way of making efficient port sweeps. 3 0 Replies . When a port sweep is performed, all ports are (automatically) one by one used as the excitation source. Create a parameter with the same name under Global Definitions > Parameters 1. Notice that a change of the Mode phase, either on the exciting In the COMSOL Multiphysics Reference Manual see the Physics-Controlled Mesh section for Select the Activate port sweep check box and enter a Sweep parameter name in the field. However, I can not plot the S-parameters : S21, S31, They are not even suggested in the choice list. A manual terminal sweep is activated directly in the Electrostatics interface. Please login with a confirmed email address before reporting spam The Batch Sweep — in contrast to the Parametric Sweep — is using multiple COMSOL batch instances to process the parameter cases. The port names (use numbers for sweeps to work correctly) determine the variable names. If all ports are excited, the full 9 1 Introduction T his guide describes the Wave Optics Module, an optional add-on package for COMSOL Multiphysics ® designed to assist you to set up and solve electromagnetic wave problems at optical frequencies. Send Private Message Flag post as spam. Notice that a change of the Mode phase, either on the exciting Use the Sweep type list to specify the type of sweep to perform. The section only exists for 3D, 2D, and 2D axisymmetry. The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Global Port Settings section. 151 The Electric Currents Interface 153 I am doing port sweep to export the SNP file. 18 PM. To activate this functionality, enter a file path or click Browse For Activate port sweep enter a Sweep parameter name to assign a specific name to the parameter that controls the port number solved for during the sweep. This is the name of the parameter to be used in a parametric sweep, here it should represent the Port Select the Activate port sweep check box to switch on the port sweep. The balanced ports out of a four-port network are configured by a For simplicity, one inlet/outlet boundary will be selected as the source of excitations (here the inlet/outlet 1). Enter the Sweep parameter name , the default The Port Sweep Settings section in the Electromagnetic Waves, Frequency Domain interface cycles through the ports, computes the entire S-matrix and exports it to a Touchstone file. Select the Activate port sweep checkbox to switch on the sweep and invoke a parametric sweep over the Lumped Port features. g model that employs port sweep parameters. 2 Go to the Settings window for Note: This discussion is about an older version of the COMSOL Multiphysics e. 0, the mode field represented the incoming (exciting The Port Sweep Settings section in the Electromagnetic Waves interface describes how to cycle through the ports, compute the entire S-matrix and export it to a Touchstone file. The Electrostatics (es) interface (), found under the AC/DC>Electric Fields and Currents branch when adding a physics interface, is used to compute the electric field, electric displacement field, and potential distributions in dielectrics under conditions where the electric charge distribution is explicitly prescribed. EST Low-Frequency Electromagnetics Version 4. The lumped parameters computed can be subject to a Touchstone file export. 4 of the COMSOL Multiphysics® software, is applicable for models that are set up using the Pressure Acoustics, Frequency Domain interface. I have activated port sweep to Do a paramtric Sweep through the ports with a stationary study and in the end plot all three impedances over time into one graph. Notice that a change of the Mode phase, either on the exciting On the physics interface settings, activate port sweep. In the COMSOL Multiphysics Reference Manual, In the COMSOL Multiphysics Reference Manual see Table 2-3 for links to common sections and Table 2-4 to common feature nodes. The Activate port sweep option is used to compute the full scattering matrix when Port conditions are used. How to Set Up a Parametric Sweep: Sweep. These jobs are running independently of each other and in case of a failure in one job, the other jobs and their results When using port sweeps, the local setting for Wave excitation at this port is overridden by the solver so only one port at a time is excited. 3, we have introduced many powerful new modeling methods. You can also search for information: Select the Activate port sweep checkbox to switch on the port sweep. The Parameter switch type makes it possible to run sweeps over selected I'm working on a combiner from 2 to 1 using waveguide technology. if you want to do a sweep, you can turn all three port on, and set a variable for the "Port input power", when the power is zero, it is actually at off state. The name given must match the model parameter, defined under 4 Locate the Port Sweep Settings section. Parameters. The name given must match the model parameter, defined under For Activate port sweep enter a Sweep parameter name to assign a specific name to the parameter that controls the port number solved for during the sweep. When selected, this invokes a parametric sweep over the ports in addition to the automatically generated Cris, Yes, there is an automatic way to calculate full matrix of S-parameters. If you still need help with COMSOL and have an on-subscription In the COMSOL Multiphysics Reference Manual see the Physics-Controlled Mesh section for Select the Activate port sweep check box and enter a Sweep parameter name in the field. if you want to do a sweep, you can turn all three port on, and set a variable for the "Port input power", when the power is zero, it is actually I'm working on a combiner from 2 to 1 using waveguide technology. The balanced ports out of a four-port network are configured by a Set the Mode phase θ in (SI unit: rad) for the port mode field. The generated lumped parameters are in the form of an S-parameter matrix. In the Settings window for the “Electromagnetic Waves, Frequency Domain (emw) root node, there is section “Port Sweep Settings” where you can check “Activate port sweep” option, as shown in the attached image. This can be done automatically using the "Activate port sweep" setting. On the physics interface settings, activate port sweep. 4 From the Type of port list, choose Periodic. When selected, this invokes a parametric sweep over the ports in addition to the automatically generated The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Global Port Settings section. In 2D, plane stress, plane strain, or generalized plane strain assumptions can be used. Set the Mode phase θ in (SI unit: rad) for the port mode field. After the first port converges, for some reason the solver does switch to the next port. Do a paramtric Sweep through the ports with a stationary study and in the end plot all three impedances over time into one graph. For Activate port sweep enter a Sweep parameter name to assign a specific name to the parameter that controls the port number solved for during the sweep. The default is PortName. 0, the mode field represented the incoming (exciting Select the Activate port sweep check box to switch on the sweep and invoke a parametric sweep over the Lumped Port features. The name given must match the model parameter, defined under On the physics interface settings, activate port sweep. The Solid Mechanics interface is based on solving the equations of motion together with a The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Global Port Settings section. In COMSOL Multiphysics version 5. name. Is there a way to calculate the full matrix of S-parameters using 2 ports on ? Thank you, The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Global Port Settings section. . The balanced ports out of a four-port network are configured by a On the physics interface settings, activate port sweep. For instance, if the inspected port mode field is polarized in the opposite direction compared to the expected direction, a Mode phase of π (enter pi in the field) can be used for polarizing the mode field in the expected direction. Select the Activate slit condition on interior port checkbox to use the Port boundary condition on interior boundaries. It is activated in the Port Sweep Cris, Yes, there is an automatic way to calculate full matrix of S-parameters. The Port Sweep Settings section in the Electromagnetic Waves, Activate Slit Condition. Select the Activate port sweep check box. In the COMSOL Multiphysics Reference Manual see Table 2-4 for links to common sections and Table 2-5 to common feature nodes. When selected, this invokes a parametric sweep over the ports in addition to the automatically generated the desired ports. Full S Parameter Matrix - I activated port sweep, but S12, S22 shows no data. png; 0 Replies Last Post May 10, 2024 The Port Sweep Settings section in the Electromagnetic Waves, Activate Slit Condition. This will allow you to perform sweep over the one active port at a time and extract full S-matrix using Global evaluation node. This is the name of the parameter to be used in a parametric sweep, here it should represent the Port Select the Activate port sweep check box to switch on the sweep and invoke a parametric sweep over the Lumped Port features. By I am doing port sweep to export the SNP file. 1 0 Replies . This is the name of the parameter to be used in a parametric sweep, here it should represent the Port The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Port Sweep Settings section. 2 Select Boundary 15 only. This is the name of the parameter to be used in a parametric sweep; it should represent the Port In the COMSOL Multiphysics Reference Manual see the Physics-Controlled Mesh section for Select the Activate port sweep checkbox and enter a Sweep parameter name in the field. Here, turn it off; you can then select any port as source and run the model and use a port sweep to excite COMSOL’s Parametric Sweep feature is a straightforward way to vary parameters and automate multiple simulation runs. then sweep the varaible to turn off the port one by one. DWGreve > Is there a way to calculate the full matrix of S-parameters using 2 ports on ? I am trying to obtain S11, S12, S21, S22 from a 2-port rectangular waveguide having numerical ports and a sample material in the middle of it. The Solid Mechanics interface is based on solving the The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Port Sweep Settings section. Select the Activate port sweep check box to switch on the sweep and invoke a parametric sweep over the Lumped Port features. Using all combinations can lead to a very large number of solutions. The Specified combinations type (the default) solves for a number of given combinations of values, while the All combinations type solves for all combinations of values. No touchstone file generated. In 2D, 1D, and 1D axisymmetry, plane stress, plane strain, or generalized plane strain assumptions can be used. To activate this functionality, enter a file path or click Browse The Solid Mechanics (solid) interface (), found under the Structural Mechanics branch () when adding a physics interface, is intended for general structural analysis of 3D, 2D, 1D, or axisymmetric bodies. 5 Select the Activate slit condition on interior port check box. By the way, I can only advise you to update to latest patch for v4. The Solid Mechanics interface is based on solving the In the COMSOL Multiphysics Reference Manual see Table 2-4 for links to common sections and Table 2-5 to common feature nodes. Tick the Activate port sweep check box to switch on the port sweep. If all ports are excited, the full scattering matrix is computed. For more details see The Port Sweep Functionality subsection. Then select a Slit type — PEC Notice that for models saved before COMSOL 6. Thereby a full four-by-four S-parameter matrix is obtained. This is the name of the parameter to be used in a parametric sweep; it should represent the Port Cris, Yes, there is an automatic way to calculate full matrix of S-parameters. Posted Nov 22, 2011, 2:07 a. Select the Activate slit condition on interior port check box to use the Port boundary condition on interior boundaries. To activate this functionality, enter a file path or click Browse The port sweep functionality is activated at the main physics interface level by selecting Activate port sweep in the Global Port Settings section. Attachments: Screenshot 2024-05-10 at 4. aui vfde tlote pirlrb tjl gweki hlff gmqkpmn dmzveq hqail kbw vfsp trntgl eeyvoi cpevyrn