What are best hardware platforms & programming Languages used for the IoT enabled video surveillance system?

Dear all, can anybody suggest me which types of hardware platform such as aurdino, rasbeery pi 3, etc. and programming languages such as MATLAB, C, C++, python, etc. will be suitable for real...

10 November 2017 1,088 7 View

How can I achieve lower frequency of operation of a UWB Bowtie antenna without using restive loading?

hi....... can any one suggest to me how I can lower the lower cut-off frequency of a bowtie antenna to MHz range without the help of resistive loading and keeping the antenna size small?

03 April 2016 9,090 3 View

How to create stop band at a particular frequency of bowtie antenna ?

hi... i want to know how to create a stop band at a particular frequency, i.e. the S11 performance of my designed bowtie antenna remain below -10 dB from 0.4GHz to more than 10 GHz. but i need the...

03 April 2016 4,714 3 View

Dear all, can anybody help me how to extract the values of s11 curve in cst mw studio & then using them how ican plot the same using excel???

i want to plot the s11 curve of an antenna using retrieved values from the cst mw studio simulation.....

06 July 2015 8,760 0 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

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