Navigating between EMS and HFWorks for electronic simulations can be perplexing. This article aims to offer clarity by providing general guidelines to help users select the most suitable option for their specific applications. While EMS overlooks Maxwell's displacement current, HFWorks does not. This current facilitates the coupling of electric and magnetic fields, crucial for electromagnetic field propagation. The decision between EMS and HFWorks hinges on factors like operation frequency and device size. Let's delve into these guidelines for a clearer understanding.
EMS is the product to use if:
- The wavelength is much larger than the device,
- The frequency of operation ranges from DC to a few hundred MHz's,
- The calculation force and torque are sought,
- The dielectric breakdown is of interest,
- To compute structural deformation due to electromagnetic force or heat.
- To calculate the saturation of the core,
- To study power integrity, power supply, and power management,
- To compute capacitance, inductance, and resistance,
- To study the skin and proximity effects,
- To calculate eddy currents,
- Motion is involved such as a motor or generator.
Use HFWorks if:
- The wavelength is smaller or comparable to the device,
- The frequency of operation ranges from a few hundred MHz to few hundred GHz,
- Far-field and antenna parameters are sought,
- To compute S-parameters, e.g., insertion loss and return loss.
- To calculate the ports characteristic impedance and propagation constant,
- TDR is of interest,
- Crosstalk and distortion are of interest,
- To examine the signal integrity of the device,
- To approximate the temperature rise of an electronic device due to dielectric conductor losses,
- Compute the resonant frequency and/or quality factor of a resonator.
Selecting the right tool for your electronic design is crucial for success. This guide offers comprehensive insights into the differences between EMS and HFWorks, empowering you to make an informed decision. If you need further assistance, our experts are always available to provide personalized guidance tailored to your specific needs.