High Frequency Analysis of a Wi-Fi Router with a PIFA Antenna

Are you curious about Discovery Electromagnetics and its capabilities? Look no further! This course will take you on a journey to explore its many capabilities and advantages. Discovery Electromagnetics is a module inside Ansys Discovery tool, that can be used to do High frequency electromagnetics simulations for initial concept design, evaluation and placement of basic antennas. In this course, we will explore how Discovery can be used to assess the impact of antenna placement. We will see how the presence of surrounding components and housing on a router can distort the far field radiation pattern of a 5GHz planar inverted 'F' antenna (PIFA). Furthermore, we will delve into how Ansys Discovery enables the quantification of resonance frequency drift caused by variations in the antenna platform. This multipart tutorial dives deeper into the start to finish workflow in an electromagnetic simulation. 

Important Links  

Discovery Electromagnetics documentations: Electromagnetics Conditions  

Simulation Files

Download the files here to follow the video step-by-step. Ansys Student can be downloaded for free here. 

Part-1 

In this session, we will explore how you can prepare and preprocess the model in Discovery Model stage for EM simulation. While exploring the functionalities of basic tools that Ansys Discovery has to offer, we will learn how to create named selections for different parts of the geometry which is very useful in further simulation steps.      

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Part-2 

In this session we will explore how you can set up the boundary conditions, create and assign materials to the various components in the router geometry. We will also explore the mesh definition and the solver options such as frequency points for far fields, Near-Field, and S-parameters, etc. that are available in Discovery Refine stage for EM simulation.  

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Part-3 

In this session we will dive into how you can solve the EM simulation, do the post processing, and explore the results and charts that are available in Discovery. We will look through the charts to see how the surrounding components affect the far field radiation patterns. We will also see how the radiation patterns will be in absence of these components to get a comparative understanding. We will see how the results can then be exported as a 3D image (.glb) files.  

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