11/9/2022 0 Comments Cst studio suite 2020![]() Simulation results To visualize a reflection coefficient at the first port, select "S-Parameters" then click on $1,2" Parameters Magnitude 1 512 Running the simulation To run the simulation, press "Setup Solver" under "Simulation menu". Do the same thing for magnetic field.ĭosya C:/Users/samsung/Desktop/EEE322-2019-2020-Lab%231-Coaxial cable.pdf We set one field monitor to 150 MHz and another one to 280 MHz. To do this, go to "Field Monitor" under "Simulation menu". ![]() 3D Electric and Magnetic Field Animations To visualize the reflection and standing wave along the coaxial cable, we need to pre define the field monitors. Set distance to 5 mm then press "OK".ī EEE322-2019-2020-Lab#1-Coaxia X + Dosya C:/Users/samsung/Desktop/EEE322-2019-2020-Lab%231-Coacial cable.pdf ST STUDIO SUITE To define the frequency range, again go to "Background" under "Simulation menu", set Fmin to 100 and Fmax to 800 MHz then click"OK". ![]() To change the medium, go to "Background" under "Simulation menu", set "Material Type" to Normal then click on "Apply in all direction". Background and Frequency Now, we need to specify the surrounding medium as well as the operating frequency range. That is the greater S-Parameter, the more power is being delivered to a terminal. S-Parameter means how much power is being transfered from one terminal to another. Note: To be able to see the reflection at both terminals, we must set the terminals to S- Parameter. After defining two terminals as previously shown, choose again "Discrete Port" under "Simulation menu" One window will pop up, set "S-Parameter to 50 then click "OK". To generate a load, rotate the line using "Rotate" option under "View menu". 2020-Lab%231-Coaxial cable.pdf To set up the source, go to "Simulation", click on "Discrete Port then "S-Parameter". J 2014-2020-Lab1-Coaxia X Dosya | C:/Users/samsung/Desktop/EEE322-2019-2020-Lab%231-Coaxial cable.pdf SST STUDIO SUITE To construct the second terminal, follow the same previous steps but only click on the inner edge of the outer conductor instead. The first terminal of the source will be then generated. To do this, go to "Modeling menu", select " Pick Point" then click on the outer edge of the inner conductor as shown below. Voltage source and load impedance To construct the voltage source, we need first to specify the source's terminals. You only need to change the inner radius to 33.5/2 mm and outer radius to 33.5/2+2 mm. PON For the outer conductor, follow the same steps as above. Select" Load from Material Library" then scroll down to Teflon (loss free), click "load" then "OK". Set the inner radius to 5.0 mm and outer radius to 33.5/2 mm. To do this, follow the same steps as for the inner conductor except the material type and radii will change. JUL.JUUS/ Sisung/Desktop/EEE322-2019-2020-Lab%231-Coaxial cable.pdf SST STUDIO SUITE Now, we need to construct the insulation material. In our example, the radius is to 5 mm and length of the line to 500 mm. To construct cylinder, go to "Modeling menu", select "Cylinder" then define the sphere parameters. Constructing Geometry: To construct the inner conductor of the line is modeled as a cylinder. The following steps explains the required steps to build your coaxial cable simulation in CST STUDIO SUITE (Microwaves module) 1. Huelve permittivity of Insulation between conductors Coaxial Cable Cross-section The operating frequency of the line is between 1 to 4 GHz. to simulate 20 138 log10 ( 2 The characteristics impedance of a coaxial line is given by Where, Da = Inside diameter of outer conductor De= Outside diameter of inner conductor - Polative nermittivity of insulation between conductors ![]() Therefore, Z_ must be equal to 50 the well matched condition. As a first check, we set R=50 N and Zo=502. 2 2/4įigure 1: Circuit schematic of a quarter-wave transformer Later, we will change the length of the line to 0.52, 0.752, 1 and 1.51, with 2 being the wavelength of the propagating wave. We will use a quarter-wavelength transformer to easily analyze the load output parameters. We will also animate the 3D-electric and magnetic fields of the coaxial cable so we can check if it is well matched to the load or not. Transcribed image text: CST STUDIO SUITE Lab # 1 Transmission Line Simulations: Coaxial Cable Aim: To simulate the output parameters of a load impedance, load voltage, current, and the VSWR values. ![]()
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