How do we define the cost function for the shaped beam synthesis?

I need to define the cost function in the shaped beam synthesis, which is the difference between desired gain and estimated gain within the contour region. I need to know whether the gain has to...

31 December 2018 9,318 0 View

Can anyone share matlab code to evaluate performance of QPSK and OQAM in modified SUI Channel model?

I need to generate bits, modulate using either of the modulation, followed by passing through the channel model (SUI). Then demodulate and show the performance of the QPSK, OQAM in terms of BER vs...

03 April 2016 6,104 0 View

Can anyone share the workflow of JM (Joint Model Reference) Software?

Can any one send the related documents for JM Software to analyse the video compression

03 April 2016 3,103 2 View

How to implement H.264 compression standard using open CV?

Can anyone help with open CV code (C++ Source Code).

03 April 2016 1,750 2 View

How an electromagnetics can be taught to the students effectively?

31 December 2014 8,829 0 View

How to creat app in android?

I need to know how to create app in android. And what software need to be used for the same.

31 December 2014 9,852 0 View

Do anyone have animations to teach concepts of electromagnetics?

I currently teach Antennas and Wave Propagation to third year BE students. If anyone has animations which may help students for better understanding, that would be great.

11 December 2014 4,992 8 View

Can any tell me about coplanar antennas (printed form)?

In one plane we can have the two type of antennas such as dipole and loop on a same plane.

11 December 2014 4,373 0 View

How can we read the audio file in real time for processing in MATLAB?

We need to read the audio input from the mic and process simultaneously in MATLAB. Can anyone tell me how to do that? What is the procedure to do that?

11 December 2014 1,086 15 View

Can anyone help explain me the difference between uncertainty in proximity multipath effects while estimating the overall uncertainty in the gain?

10 November 2014 8,262 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

Does the circuit modeling for planar monopole antennas using Foster canonical forms give good approximation?

Hi researchers, I am searching for some accurate way to do the circuit modeling of planar CPW-fed monopole antennas. I have gone through the literature where mostly circuit modeling is done using...

28 February 2021 7,016 1 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

What is Flat Lens Antenna?

28 February 2021 5,433 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

Efficiency of Proximity Feed Patch Antenna ?

Greetings to all of You! I have searched some research papers for the designing of a proximity coupled patch antenna. Researchers are talking about the impedance bandwidth of the antenna but...

24 February 2021 7,662 3 View

2D or 3D phased array antennas??

Dear All, I will start my PhD maybe this year regarding phased array antennas. I'm interested in to find more detailed information about 3D phased array antennas and 2D phased array antennas. Then...

21 February 2021 368 3 View

Helix antenna coupling problem?

Dealing with a helix antenna, made with flexible material and not rigid like using a PCB board or wire. At the beginning of the helix is too close to the ground plane, causing coupling. How can I...

21 February 2021 4,453 3 View

Why use both bead beating and enzymes (lysostaphin and lysozyme) for DNA extraction from sputum samples?

Hello, I have read in a few publications that to extract total DNA from sputum samples, both bead beating and enzymes are used to disrupt the cells. Bead beating is supposed to be efficient in...

18 February 2021 3,360 2 View