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Recent content by fangjing

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    CST Simulation for metal mesh filters (frequency selective surface)

    Hi all: I am trying to reproduce the work from paper "Resonant metal-mesh bandpass filters for the far infrared" by D. W. Porterfield etc. The geometry of the mesh filter is shows as below: There are four filters considered in this paper (central frequency are 0.587, 1.195, 1.537 and 2.125...
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    What does the responsivity mean?

    Could anybody help me? Thanks very much.
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    What does the responsivity mean?

    Dear all: I am trying to use IRS-A200ST01 or IRA-E710ST1 to detect very weak infrared signal. I had a question regarding to the responsivity. In the datasheet of Murata sensors (please refer to the attachment), there are two kinds of responsivity. In my opinion, the second one, Walk Test...
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    computational electromagnetics - request for detailed book

    Fast and Efficient Algorithms in Computational Electromagnetics Editors: W.C. Chew E. Michielssen J. M. Song J. M. Jin 2001 Book Bibliometrics · Downloads (6 Weeks): n/a · Downloads (12 Months): n/a · Citation Count: 27 Publication: · Book Fast and Efficient Algorithms in Computational...
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    How to set the boundary condition for the peoridical structures?

    sorry to mention that the frequency is 40 GHz, not 40 THz as shown in the project file.
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    How to set the boundary condition for the peoridical structures?

    Hi, mates: I would like to simulate an antenna array containing 480*320 elements. I heard that the periodic boundary condition can be imposed in order to decrease the dimension of the structure. The unit cell is a flat square on a holder. The incident wave is a plane wave, illuminating from a...
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    Metamaterials in Terahertz Regime

    Hi everyone: Does any of you have the experiance in metamaterials with terahertz frequencies? I would like to reproduce some results shown in paper using HFSS. Can you please provide some suitable papers thus I can reproduce the simulation of those? I have done some simulations just simply...
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    Does anyone have any experience in the retrival of metamaterials

    index=-1i.*log(eink0d)./k_0./cell_thickness;
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    Does anyone have any experience in the retrival of metamaterials

    i did as the paper by D.R.Smith, Electromagnetic parameter retrieval from inhomogeneous metamaterials, equation (9) and (10)
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    XFdtd,HFSS,uWave Wizard - comparison

    i think it depend on the size you need to simulate HFSS is based on finite element method, it is accurate full-wave numerical method, therefor it is reliable and we can get many application examples online. xfdtd is also popular based on fdtd. the GPU acceleration is promising feature i think...
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    CST MWS plane wave problems

    which solver did you use? I got some examples one is based on the Transient solver hope this can help:-D
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    Does anyone have any experience in the retrival of metamaterials

    yes, i have tried what you mentioned, it really works! I have extracted the epsilon and mu0 successfully Thanks very much! ---------- Post added at 10:18 ---------- Previous post was at 10:16 ---------- sorry, i didn't have any experience in CST simulation. maybe i will try later. i will...
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    Does anyone have any experience in the retrival of metamaterials

    i think so. see the attachment but i don't know if it works when the slab is thin.
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    simulation metamaterial with MATLAB

    you don't have to write code yourself. why don't you use commercial softwares? matlab can be used to extract the electromagnetic parameters, eg. the permittivity

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