How orthogonal modes are generated in antenna?

What is the physics behind the generation of orthogonal modes in antenna to ensure circular polarisation? Please suggest your answers. Thank you.

31 December 2017 3,779 3 View

What does the modern society expect from Antenna?

The use of antenna and it's credibility has gone so high. From a researcher point of view it is quite important to know what is the future of antenna? What people (society) need from antenna? What...

10 November 2017 7,114 3 View

What happens when normal EM-wave incidents on a metal plate (perfect conductor)?

What happens when electromagnetic wave (EM) incidents on a metal plate? Does it reflect back? If yes then how to calculate how much (percentage) is reflected back. Kindly suggest any mathematical...

02 March 2017 4,506 3 View

How we can apply FDTD or FEM method for modelling of an antenna ?

Can any one please suggest me the procedure for applying FDTD or FEM (or any other) method on modelling of a rectangular/cylindrical shape (3-dimensional) antenna as well as to get other...

06 July 2016 4,005 5 View

What is Co-Polarization and Cross-Polarization in terms of both E-Plane and H-Plane in HFSS ?

Hi, I have little confusion about E-Plane Co-Pol and Croos-Pol, H-Plane Co-Pol and Cross-Pol. How we can find those in HFSS ? If any one have solution kindly suggest me. Thanking You. Sounik Kiran

02 March 2016 7,244 17 View

How can I measure Axial Ratio of a Dielectric Resonator Antenna ?

I want to measure the axial ratio (Not in simulation software but with the fabricated model). Kindly suggest me the steps.

31 December 2015 1,294 6 View

Can we get constant gain for an antenna operating over an Ultra Wideband range?

31 December 2015 1,578 9 View

Can I use the solution frequency beyond the bandwidth range ?

I have designed an antenna which is operating in certain range but the solution frequency is beyond that range...If I am changing the solution frequency in to that bandwidth range then the...

09 October 2015 3,918 6 View

What is the difference between Returnloss(dB) and S11(dB) ?

Actually some research papers have written Returnloss(dB) and some others have written S11(dB). Couple months back I had seen there was an article in IEEE which has given the clarification. If any...

07 August 2015 2,291 13 View

If research is published in conference proceedings, can it still be published in journals?

Also if further improvements have done as compared to conference paper and the detail analysis is mentioned.

04 May 2015 1,575 1 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

Can we block unwanted images during the x-ray prediction?

i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).

03 March 2021 7,100 1 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

Do you know any MR image dataset?

I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.

02 March 2021 7,735 3 View

I have designed reflectarray element and feeding it though Horn Antenna on HFSS. After full wave simulation, I am not getting desired results?

I have designed reflectarray element to generate OAM beams at 5.8GHz and feeding it though Horn Antenna on HFSS. After full wave simulation, i am not getting desired results i.e Radiation pattern...

01 March 2021 9,701 5 View

How to find the mode of classified ocean colour images?

Hello, I have classified 10 S3 OLCI images from the same area (althouth not the same size and/or quadrant) and I would like to do a final image using the mode of the pixel of these 10 images. I...

01 March 2021 9,874 3 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 threshold an image despite bright lighting, using ImageJ/Fiji?

Hi everyone, I am using Fiji to determine the percentage of the image covered by leaves, branches, or trunk, but i've encountered some difficulty when the sun hits parts of my image like the one...

27 February 2021 1,194 3 View