Mohamed Lamine Tounsi

12 Questions 6 Answers 0 Followers

Questions related from Mohamed Lamine Tounsi

Can any one explain what is the SLL (side lobe level) target required for 5G applications ?

5G antennas (or antenna arrays) are designed to generate dedicated stream of data to every single user with more capacity, speed and low latency rate. Depending upon the direction of the user...

07 December 2020 1,800 4 View

Which is the impact of mechanical/manufacturing tolerances of planar antenna structures on the EM performances?

It is known that electromagnetic performances of planar antenna structures can be impacted by the mechanical/manufacturing tolerances. What does this impact mean? And what are the antenna...

15 November 2020 377 3 View

How to distinguish between A.C and D.C Josephson Effect ?

When two superconducting materials are separated by an insulator of very few thickness and are connected by a wire, a dc current flows in the external circuit (dc.Josephson effect). However, if...

10 October 2020 6,460 2 View

How can we choose the boundaries conditions in HFSS ?

We want to design planar antennas (in open or shielded configuration) by using HFSS software but we are facing a problem with boundaries conditions. How to select theses boundaries.? Thanks in...

19 September 2020 7,798 3 View

Are there any limits in the choice of microstrip-line dimensions at THz band ?

At THz frequencies, the microstrip-line width W becomes of the same order that its thickness t. In these conditions, are CST or HFSS tools able to take into account this restrictions (W very close...

12 September 2020 3,096 3 View

Is it possible to create a superconducting material with CST or HFSS software ?

If it is possible, how can we proceed to create this material

12 September 2020 3,347 4 View

What are the main differences between CST and HFSS CAD tools in design of RF/Microwave circuits ?

According your personal experience and knowledge about these two CAD tools (HFSS and CST), what are their strengths and weaknesses as well as their advantages and disadvantages in design of...

13 August 2020 2,757 10 View

What are the criteria that determin the size of the unit cells in metamaterials ?

Does the wavelength the unique criteria to choose the size of unit cells in metamaterial regime ? particularly for microwave applications.

28 July 2020 490 6 View

Are metamaterials inherently lossy and narrow bandwidth?

In despite that many metamaterial designs in the literature are often lossy, total losses are governed by design considerations and material choices rather than anything relative to the resonance....

23 July 2020 4,953 3 View

What electromagnetic simulating software may be used to simulate a superconductor microwave circuit ?

This is to know what EM simulating software can simulate a microwave circuit (microstrip line, filter, antenna..) based on suoerconductor. Thanks in advance.

23 July 2020 2,461 0 View

What are the main reasons that do various superconductors have different Tc ?

Due to the almost isotropic character of their electronic properties, heavy fermion materials are low temperature superconductors. Organic materials should not have a high Tc either. Furhermore,...

22 July 2020 1,456 9 View

How to simulate a superconductor microwave circuit using CST EM tool ?

To my knowledge, many electromagnetic simulators do not take into account the supeconductivity aspect when simulating any microwave circuit. Do you know, please, if it is possible to do that...

18 July 2020 6,088 0 View