Coaxial cables are widely used in applications such as telecommunications, aerospace, and high-speed digital systems. Accurately modeling their behavior is essential for ensuring optimal performance in RF systems. In this blog, we will walk through the process of setting up a coaxial cable simulation in HFSS and plotting the insertion loss, return loss, and electric field distribution.
Simulation Workflow
In this example, we will start by creating a coaxial cable with the following dimensions:
Copper is assigned to the inner conductor and aluminum to the outer conductor. The dielectric region is defined using PTFE, which has a relative permittivity of 2.1 and a loss tangent of 0.00022.
The simulation is set up using a Driven Modal solution type. Wave ports are assigned to both ends of the coaxial line to excite the model, and a frequency sweep from 1 GHz to 20 GHz is defined to evaluate its broadband performance.
Once the simulation is complete, the results are used to plot the return loss and insertion loss across the frequency range.
Additionally, the electric field distribution within the dielectric is plotted and animated.
The video below walks through these steps in detail, and the model shown is available in the downloadable resources.
Downloadable Resources
Ozen Engineering Inc. leverages its extensive consulting expertise in CFD, FEA, optics, photonics, and electromagnetic simulations to achieve exceptional results across various engineering projects, addressing complex challenges such as antenna design, signal integrity, electromagnetic interference (EMI), and electric motor analysis using Ansys software.
We offer support, mentoring, and consulting services to enhance the performance and reliability of your electronics systems. Trust our proven track record to accelerate projects, optimize performance, and deliver high-quality, cost-effective results. For more information, please visit https://ozeninc.com.
If you want to learn more about our consulting services, please visit: https://www.ozeninc.com/consulting/
CFD: https://www.ozeninc.com/consulting/cfd-consulting/
FEA: https://www.ozeninc.com/consulting/fea-consulting/
Optics: https://www.ozeninc.com/consulting/optics-photonics/
Photonics: https://www.ozeninc.com/consulting/optics-photonics/
Electromagnetic Simulations: https://www.ozeninc.com/consulting/electromagnetic-consulting/
Thermal Analysis & Electronics Cooling: https://www.ozeninc.com/consulting/thermal-engineering-electronics-cooling/