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Questions related to Electromagnetics
It is easy enough to imagine a situation when wrong layout, bad filtering, and strong electromagnetic field radiated by inductor of a switching converter can disturb the analog part of device to...
11 November 2016 9,320 15 View
The complex permittivity of a material is typically written as epsilon=epsilons+i*sigma/omega.(epsilons: the real part, sigma: conductivity, omega: angular frequency). As we know, any material has...
11 November 2016 9,533 6 View
Dear all, I am currently struggling with CST's Optimizer function. I designed an electron gun and now want to obtain the best voltage settings for anode, focus and deflecting stages in terms of...
11 November 2016 7,421 2 View
04 November 2016 9,707 2 View
There are several techniques to increase the gain or bandwidth of an antenna. Is there any guidelines or thumb rules to obtain 'Dual Polarization' or is there any technique(s) which can give...
31 October 2016 2,344 3 View
How does absence of clock help lessen the effects of EM ?
15 October 2016 7,314 3 View
Coulomb's law has of the gravitational of form. Experimentally established the existence of gravitational-electromagnetic resonance, see,...
10 October 2016 8,963 3 View
10 October 2016 4,690 4 View
10 October 2016 3,548 3 View
How to find reflection and transmission coefficient for TEM waves for different frequencies ,What should be the port settings and boundary conditions ?
10 October 2016 3,572 4 View
I am currently calibrating 2D digital camera with 3D tracking system(Optical tracking system or Electromagnetic tracking system). In most of the literature I studied, First the camera is...
20 September 2016 3,216 3 View
We are using TEM method for engineering studies, in that we are sending current of 32,16,8,..etc.frequency. So here we are getting different depth information for different frequencies and...
09 September 2016 1,438 2 View
if i am right, is this the formula to calculate the dielectric constant for the materialɛ*= ɛ’-j ɛ" what is j standing for in the formula, how to calculate j,
09 September 2016 8,016 5 View
09 September 2016 9,122 3 View
Electromagnetic, information theory
09 September 2016 2,678 0 View
02 September 2016 4,684 4 View
If I take the formula for Electromagnetic Energy of a photon (E= hf) h is a (Planck) constant value and f can be a common positiv number. Is f a real number or an integer? Quantisation of photon...
08 August 2016 6,599 0 View
Dear Colleagues In the literature, I have found the following formula for the magnetic field in the centre on the solenoid with finite length on its axis: Bz(0) =...
08 August 2016 4,914 11 View
if there is any formula with the repelling distance or the flux developed with respect to the length and diameter of the magnets
08 August 2016 6,351 4 View
In General Relativity (GR), Einstein's formula for the anomalous precession of a planet in orbit around the Sun (notably applied to the planet Mercury) is viewed as one of the critical tests of...
28 July 2016 7,667 16 View
Distortion in MT data take place due to either galvanic effect, induction effect or mixing of them. Static shift is a subset of galvanic distortion which moves MT curve upwards or downward. Static...
28 July 2016 1,885 1 View
I define the geometry by atlas, uniaxial anisotropy, Magnetostatic energy and exchange interaction by oxs. I define the initial magnetization asm0 { Oxs_RandomVectorField { min_norm 1.0 max_norm...
15 July 2016 8,024 3 View
The phase of the EM wave either timelike (k.x=k_0x_0-K.X>0) or spacelike(k.x=k_0x_0-K.X
14 July 2016 3,399 2 View
Hi every one. Why observation of anderson localization, in the visible and infrared spectrum is difficult, whereas in the terahertz (due to higher dielectric contrast) it can be observe...
14 July 2016 3,850 1 View