November 11, 2019 at 6:05 pmhxb160030Subscriber
Hello Ansys representative,
I've been simulating an array of on chip antennas (65-nm CMOS process). Each of the 7 elements are excited using individual lumped ports. Using the excitations tab on project manager, I change the magnitude of incident voltage between 1V and 0V to excite the individual elements - during post processing.
I notice a sudden increase in radiation efficiency from ~47% to ~55% followed by a gradual saturation on efficiencies with excitation of further elements. (attached)
Could you please help me reasoning this pattern in radiation efficiency please? Ideally radiation efficiency should depend only on the ratio of power accepted and radiated. In multiple elements (not connected - neither series nor in parallel) of this array where each element is excited individually, the radiation efficiency should not show this drastic increase.
A slide showing this behavior is attached please. Please help.
Thanks and Regards,
- You must be logged in to reply to this topic.
Boost Ansys Fluent Simulations with AWS
Computational Fluid Dynamics (CFD) helps engineers design products in which the flow of fluid components is a significant challenge. These different use cases often require large complex models to solve on a traditional workstation. Click here to join this event to learn how to leverage Ansys Fluids on the cloud, thanks to Ansys Gateway powered by AWS.
Earth Rescue – An Ansys Online Series
The climate crisis is here. But so is the human ingenuity to fight it. Earth Rescue reveals what visionary companies are doing today to engineer radical new ideas in the fight against climate change. Click here to watch the first episode.
Subscribe to the Ansys Blog to get great new content about the power of simulation delivered right to your email on a weekly basis. With content from Ansys experts, partners and customers you will learn about product development advances, thought leadership and trends and tips to better use Ansys tools. Sign up here.
- simulation completed with execution error on server
- Maxwell, HFSS or Q3D?
- How to export Ansys Maxwell simulation results for post-processing in matlab or in .csv file
- Unable to assign correctly the excitations in a coil
- Running ANSYS HFSS on the HPC (it runs on Linux only)
- Running ANSYS HFSS on multiple nodes on SLURM based cluster
- Intersect errors with model with complex structure
- Process ‘3dtds’ terminated abnormally
- HFSS: reset marker legend dimensions.
© 2023 Copyright ANSYS, Inc. All rights reserved.