What is the dielectric constant of >PC+ABS-FR(40)< at microwave frequencies?

18 October 2021 0 3K Report

What is the relative permittivity of the plastic material used in laptops (a.k.a. PC+ABS-FR(40)) from 600 MHz - 6000 MHz?

Badges
Science topic

More Suhas Dinesh's questions See All

Sensitivity analyze for crop evapotranspiration (ET0)?

Does anyone know how to perform a sensitivity analysis for crop evapotranspiration ( FAO Penman-Monteith equation) using daily meteorological data?

27 December 2020 9,552 3 View

How do I DERIVE equations for lumped elements (R, L, C) from S-parameters?

I have modeled the lumped element circuit for the 3D structure which has been simulated in HFSS. Now I need to derive the equations for the lumped elements keeping the S-parameters of the...

23 December 2020 172 3 View

No title

For academic writing.

17 December 2020 6,465 5 View

How to get nanocomposite of PEEK with Zirconia ?

Need a lengthy PEEK with Zirconia based nano composite of 180 mm length. Which method is possible? Tried injection molding no proper mix. Solvent casting process is also very costly. Kindly anyone...

13 December 2020 4,329 5 View

Choice of sampling time in discretization of control?

What I understand is while applying continuous control to a continuous-time system in MATLAB simulations, actually the control is being applied in discrete manner inherently due to the nature of...

28 November 2020 1,866 4 View

Simulation of sliding mode control for a maglev system?

I tried to simulate a maglev system with continuous time sliding mode but my simulation is showing error (there is a singularity at one of the integrators). I am attaching the modelling and...

16 November 2020 8,964 7 View

Can anyone suggest is there any way to compare the amount of chattering in 2 approaches of sliding mode control in quantitative way physically ?

Suppose 2 methods are shown to do sliding mode control of a given system. Please tell me if we can compare chattering in both by MATLAB or some other way

16 November 2020 3,251 3 View

On what basis two ceramics to be added in base metal to prepare hybrid metal matrix composites?

I am working on Mg-based metal matrix composites. I added two different types(A&B) with a suitable percentage(1%,2%,3% and 0.5%,1%,1.5%) of ceramics separately using DOE and tested. Now I want...

14 October 2020 2,984 9 View

Where i can get Ti based C94 catalyst ?

Ti based C94 catalyst is required for PBAT synthesis

12 September 2020 7,174 4 View

It is possible implement headonic regression model using apache spark milb?

My concern is to use Headonic regression model for market price index analysis.

10 September 2020 9,466 3 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View

Compact antenna for the frequency range 1 MHz-5 MHz?

Hello everybody! I have a problem with developing a compact antenna for the 1MHz-5MHz frequency range. Tell me what type of antenna can be used and what books and articles to read to perform this...

27 February 2021 7,710 4 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View

Steps to calculate activation energy by coats & redfern method?

I'm a chemistry student and I'm researching the kinetic degradation of mixed plastic waste. I'm having trouble calculating the activation energy by the coats & Redfern method. The data that...

24 February 2021 974 1 View

Droplet PCR in plastic chips always result an unexpected band, any suggestion of possible contaminations and how to improve?

I am doing droplet based digital PCR inside plastic chips. I can get the correct band, but I also consistently get an unexpected band, slightly shorter. I attached a typical gel image here....

18 February 2021 6,618 2 View

Is there a way to use waveguide ports for circular antenna design in CST?

Hi, whenever i use circular array i get this error "Waveguide ports must be aligned with Cartesian coordinate planes for the transient solver" Does anyone use circular array with waveguide ports?...

09 February 2021 3,609 8 View

How to model in HFSS or FEKO Free Space Material Characterization?

I am having trouble setting up this problem in HFSS or FEKO. In HFSS, I've tried both FEM and FEBI-IE solvers. With FEKO, I've tried it's MoM solver and default settings. I am would like model...

09 February 2021 375 2 View

Using liquids as superstrate in Fabry-Perot Cavity Antenna?

Hi, A Fabry Perot Cavity allows to increase the directivity of a low gain antenna by putting in the top of cavity a superstrate with high permittivity such as a ceramic (er=10.2). However,...

09 February 2021 6,799 8 View

How to perform analysis on Chandrayaan-2 DFSAR data using MATLAB or other languages like python?

Kindly suggest any libraries/Books/platforms/tutorials for the same.

04 February 2021 1,708 2 View