Phased Array design specifications?

I need to design a phased array with freq. 2000 MHz to 2300 MHz specification. Thinking of linear array. Directivity should be high like 20 dBi and circular polarization. Can you please advise me...

01 February 2020 4,185 4 View

Wideband (2 to 6GHz) metamaterial enabled antenna?

I am designing metamaterial enabled antenna for wideband freq. I have antenna with wideband freq. bandwidth. Have a metamaterial at the back of antenna, but not able to get wideband when I put the...

07 August 2019 5,828 10 View

Reference impedance for stripline?

I am having difficulties in designing stripline on cst. The reference impedance should be 50 ohms and it should be straight line at 50 ohms. Please guide what mistake I am making. I played with...

07 August 2019 2,551 7 View

Can I have some suggestions on transmission line metamaterial antenna?

any paper links

05 June 2019 6,584 5 View

Metamaterial transmission line is same as metamaterial?

Is metamaterial same as metamaterial transmission line? Why do we need transmission line on metamaterial? Is this an antenna once we put transmission or stripline on metamaterial. Any guidance is...

05 June 2019 7,064 5 View

Looking for flexible high k polymer material?

I am in need of high k polymer material but it has to be flexible as my application is wearable.

11 December 2018 1,328 5 View

What is the Gain of Archimedean Spiral antenna?

Gain of 2 arm archimedean spiral antenna

01 February 2018 4,171 2 View

What is the impedance of Bow-Tie antenna? How we can match the impedance with coaxial feed? Please Suggest

What is the impedance of Bow-Tie antenna? How we can match the impedance with coaxial feed? Please Suggest

06 July 2017 5,875 2 View

Metamaterial Surface Bandwidth?

02 March 2017 5,462 3 View

Archimedean spiral antenna parameters help please?

How does it affect the impedance and radiation pattern of Archimedean Spiral antenna if the width of the turns are wider, if no. of turns gets increased or the spacing between the turns increased...

31 December 2016 1,576 6 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

Is stone a sustainable material? Is it a sustainable approach to use natural stone waste in architecture?

I'm designing a zero-waste restaurant and considering using marble waste to make some tables and a bar countertop. My clients think it's not "sustainable enough" and I would like to have more...

01 March 2021 4,326 7 View

Timeout error!! Processor in the loop (PIL) using STM32F4 Matlab 2018a?

Dear Researchers I am trying to perform a PIL simulation using STM32F4 Discovery board and comunication serial USB TO TTL. During simulation I receive the following timeout error: An error...

01 March 2021 2,327 1 View

How to eliminate Steady state error from Reinforcement learning genetic algorithm code?

The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...

28 February 2021 6,560 14 View

Microstrip antenna design tutorial of HFSS 3D layout module ?

I have designed a 24 GHz rectangular antenna on HFSS 3D model and got desired results while desing the same antenna with same dimensions I am getting resonance frequency at 27 GHz I am...

28 February 2021 4,426 2 View

How to prevent ANFIS Model from negative prediction values in MATLAB?

I have input and output data set for "ANFIS modeling in MATLAB", and I am getting some negative predicted values of output in testing. However, the predicted values of output in training are...

28 February 2021 3,459 3 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

How does an AC-DC power supply Flyback Converter Based USB Charger Model using Matlab/Simulink looks like?

I am required to learn about Flyback converters and I got stuck not knowing to full design of the power supply flyback converter Based USB Charger Model using Simulink, especially the design model...

25 February 2021 5,435 2 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

Please. Could you help be in implementing Fractal Discrete Cosine Transform algorithm in Matlab?

I do need the Matlab code of Fractal Discrete Cosine Transform (FDCT). Can anyone who has already implement this code, help me with the implementation of this transform?

24 February 2021 5,602 2 View