[Meep-discuss] Units in MEEP

2010-01-16 Thread Roy Zhang
Hi everyone, The website of MEEP has already said that units in MEEP is dimensionless, including the length, the frequency and so on. However, I wonder that if all the units in MEEP are dimensionless, especially the units of inputs and outputs, which are the conductivity, the electric and

[Meep-discuss] The relationship between current source in MEEP and in XFDTD?

2009-09-22 Thread Roy Zhang
(I don't see my reply posted, so I'm posting it again. I'm sorry if this mail is duplicated.) Hi Steven, Thanks a lot for helping me find out a big mistake I made - that is, I was confused by the defination of current in MEEP, which is totally different from that in driving circuit. So here

Re: [Meep-discuss] Question about setting the current source

2009-09-22 Thread Roy Zhang
and magnetostatics (Poisson's equation etc.). Steven On Sep 15, 2009, at 9:40 AM, Roy Zhang wrote: I'm trying to set a current source and find there's no parameter to describe the resistance(50 ohm, normally) in the feeding point, which is frequently used in EM emission system. That's quite

Re: [Meep-discuss] Question about setting the current source

2009-09-22 Thread Roy Zhang
larger than the wavelength), you want to be solving the equations of electrostatics and magnetostatics (Poisson's equation etc.). Steven On Sep 15, 2009, at 9:40 AM, Roy Zhang wrote: I'm trying to set a current source and find there's no parameter to describe the resistance(50 ohm, normally

[Meep-discuss] Question about setting the current source

2009-09-15 Thread Roy Zhang
Hello everyone, I'm trying to set a current source and find there's no parameter to describe the resistance(50 ohm, normally) in the feeding point, which is frequently used in EM emission system. That's quite strange. Can you tell me why? Your earliest reply will be greatly appretiated.

[Meep-discuss] How to disable the function of smoothing?

2009-08-19 Thread Roy Zhang
Dear Steven and All: Hello! I'm using MEEP to deal with a problem which require a model with exact epsilon value in each pixel. However, as you know, MEEP will modified the model automatically to average the epsilon value at the surface of different kinds of dielects. Such situation is