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Questions related to Antennas
I am facing a problem in the calculation of the effective length of monopole antenna different pieces. Can anybody guide about this problem? The pic is attached below which I take from published...
01 September 2021 4,932 4 View
Hello, I simulated a dipole antenna which is located vertically to the ground (the axis of antenna is z) in CST(Picture number 1). And the axial ration is calculated/plotted by CST as well(Picture...
24 August 2021 8,274 5 View
Hello Everybody How can I import a SIW antenna structure in Altium Designer software with all of its Via holes placed in their positions correctly? This is intended for PCB fabrication. As the...
23 August 2021 4,900 3 View
Hi guys, In real life scenarios when deploying Base Stations, you may come across something called Passive InterModulation (PIM). What is PIM? What causes it? How to mitigate it? How does it...
17 August 2021 3,131 2 View
Please, anyone, have papers or papers titles about the spiral antenna array design with the feed network (spiral antenna array, I mean the elements arranged on the spiral path a not spiral...
14 August 2021 7,941 3 View
Hi researchers , I have a Double Ridged Horn antenna design works between 0.6-3 GHz perfectly. I use CST 2017 and frequency range setting is 0.2 to 3GHz. But when I change the frequency range 0.2...
12 August 2021 6,408 8 View
Dear colleagues, I am looking for any software that can derive the equivalent circuit model for the simulated antenna design with similar S-Parameters. It is well known that the antenna design...
07 August 2021 5,257 15 View
I submitted a Technology Review in RELC.
07 August 2021 2,554 2 View
Find the directivity and efficiency of an antenna if its radiation resistance is 80 Ω, and loss resistance is 10 Ω. The power gain is 10 dB and antenna operate at a frequency 100 MHz.
05 August 2021 3,225 8 View
IEEE 802.22 wireless regional area network (WRAN) specifies that cognitive radio devices can use TV white spaces whenever required. Using different frequencies will require its antenna size to be...
29 July 2021 8,015 5 View
I am working on a array structure to generate OAM beams. But to confirm whether my design ok or not, I first need to check the phase distribution of the antenna on CST.
27 July 2021 8,751 15 View
- I need help determining the type of "jeans substrate" for a microstrip antenna. - What kind of substrate jeans are suitable for microstrip antennas. - Then, in which country to buy the substrate...
23 July 2021 2,636 3 View
can any one tell which one is related to S11?
22 July 2021 433 5 View
I am looking to design an UWB antenna operating between 6GHz and 8.5GHz. The antenna should have omnidirectional radiaton patterns and using microstrip technology.
20 July 2021 937 8 View
and how to find the min power density for antenna sensitivity to recieve?
20 July 2021 1,286 5 View
I see professional advice to help to attenuate a highly directional interference. We have a large (~3m) satellite dish antenna for collecting earth observation data. This antenna rotates to scan...
12 July 2021 9,618 3 View
Hello together, I am looking for a way to describe the roll angle between a LEO satellite and a Ground Station antenna. The ITU has a nice recommendation for calculating the polarization angle...
06 July 2021 2,275 2 View
I'm conducting a statistical study of the user performance for different Base station topology and array designs. Can anyone suggest some materials/papers regarding the same? For eg, when I...
06 July 2021 2,726 3 View
The phonons' energy of the 'metal of antenna' and also that 'of reflector metal' can be increased or decreased by heating or cooling. If transmission or reflection is of EM wave with frequency of...
17 June 2021 1,686 9 View
Sometimes, researchers in the acoustic field find themselves can't afford to purchase an advanced sound level meter (as myself) so they have to improvise to get the work done, by using smartphones...
10 June 2021 5,413 0 View
Is there any standard procedure or rule to determine design dimensions at miniaturized antennas at lower frequencies like 915MHz or 2.45MHz?
08 June 2021 7,880 5 View
I have simulated an antenna in CST with frequency range set to 1-3 GHz and the results were good, gain of around 1.2 dBi at 1.575 GHz. When I increased the frequency range in the model to 1-6 GHz,...
07 June 2021 5,724 6 View
I made a model of an aperture coupled patch antenna in CST. Its linearly polarized with a microstrip feed on the bottom layer and a single bowtie aperture slot. Substrate is FR-4 with er 4.23....
07 June 2021 8,167 6 View
We know that by using a microphone array we gain extra SNR. In the meantime, vector sensors are also with that advantage, and moreover, able to achieve that with a single sensor without the...
03 June 2021 293 4 View