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# Permittivity And Permeability

47 Threads found on edaboard.com: Permittivity And Permeability

## Media having negative permittivity and permeability ?!?

Hi friends, can someone explain me what are media having negative permittivity and permeability. How they work, what changes in EM waves propagation, which are the advantages and applications? Thanks, Satellite

## metal permittivity and permeability at microwave frequency

Does anybody here can find me an online source or handbook listing out permittivity and permeability values for different metals at microwave frequency? Or generally tell me a magnitude range, around hundreds or something like that? Thanks a lot!

## how can i assign the air boundary?

Since free space has a relative permittivity and permeability of one, the wavelength is the longest in free space.

## Anyone know typical values for ?, &#963; and &#949;

Hi, I want to ask if anyone know the typical values for ?, σ and ε in free space and metal (any metal) where σ is Electric Conductivity, ε is permittivity and μ is permeability. Thanks for help

## Req: TSMC 0.18um process parameters

I'm looking for TSMC 0.18um process parameters, such as the thickness of metal layers, permittivity and permeability of substrate, oxide layers, etc. I need the info to set up a 3D simulation for spiral inductors. Any help would be gratefully appreciated. there u go!

## How to add a new material to HFSS 9.1?

I'm not sure about 9.1 but in 9.2 you can add new material in following way: select 3D Modeller -> Assign Material -> Add Material You should check at least relative permittivity property, probably also dielectric loss tangent. Other properties are relative permeability, conductivity and magnetic loss tangent. Magnetic saturatio

## Wave impedance - how to measure it practically?

I think this amounts to measuring the permittivity and permeability of free space. The experiments for obtaining accurately the value of epsilon_0 and mu_0 are quite complicated. I think this is the job for people in the bureau of standards. What is the purpose of looking into this?