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Questions related to Antennas
I usually don't see path loss models for IRS consider polarization. But specific to mmWave application, the polarization of the antenna has some effect. Is there any research that has explored this?
09 January 2021 3,181 1 View
Hi Good time How can I write MATLAB simulation code to define a distributed MIMO system? I have two base stations and one user and I have trouble determining the size of H = [H1(d1); ... ;Hl(dl);...
09 January 2021 9,740 3 View
Hi all, I want to insert a random source that changes at each step size so slice plot will be with respect to time like the source f(r,z,t0) will be the random 2d matrix generated at t0 and at...
09 January 2021 7,420 0 View
Reading about helical antenna before begin to design. How many turns should a helix have? How can I determine good number of turns? I know Length of the antenna = NS. Should I just play with the...
07 January 2021 3,305 2 View
I am trying to prove the formula that describes the antenna pattern of a circular array, in which the elements that make up the array, in addition to being rigidly translated from each other, are...
06 January 2021 2,475 10 View
Is there any difference of radiation properties if same antenna is measured from different anechoic chambers?
06 January 2021 6,852 7 View
PLPDA have radiating element on both sides of the substrate. so how to apply port. i have attached the figure below.
04 January 2021 4,099 6 View
Hi, ive desined an array of antennas with 8 elements. When i sımulate it i got this error message in CST "Waveguide ports must be aligned with Cartesian coordinate planes for the transient solve"....
03 January 2021 7,677 6 View
Hello Happy New Year , I wish the best for all of us and our kind planet Earth in 2021 OK, I designed an microstrip patch antenna on CST and now i want to use EBG structure to enhance its...
01 January 2021 5,452 9 View
Can the dual-band antenna be called as a shared aperture antenna? Difference between shared aperture antennas and dual-band antennas?
31 December 2020 7,270 4 View
actually for PLPDA, it is designed on both sides of the substrate for providing 180 degree phase shift between the elements
29 December 2020 3,245 3 View
I´m designing a PIFA antenna. I have been modifying the ground plane size, the frequency shifts when I increase and decrease the lenght of the ground plane. I have found the size where the...
29 December 2020 5,729 3 View
For standard shape (Rectangular, circular) microstrip patch antenna, standard formulas are defined for calculating dimension but for other design how do we decide shape and its dimensions? Does...
23 December 2020 5,606 3 View
I am trying to simulate a dipole antenna with parasitic elements including slots where i can mount S2P file of switches to obtain a reconfigurable antenna pattern. My antenna has no ground plane....
22 December 2020 719 1 View
I have created an 5.8GHz patch antenna with complex impedance for my research (in CST MW Studio). But I have got a problem with the efficiencies (see picture). I think it's because the antenna is...
11 December 2020 4,619 8 View
So i was asked to make a horn-shaped patch antenna, but i'm having hard time to find its dimensions. Is there a relation between a real horn antenna dimensions and a patched one?
08 December 2020 1,893 3 View
Is there any specific design challenges for MIMO antenna in 5G applications?
04 December 2020 8,165 6 View
The textbooks show a triangular pattern for the current as the limiting case for a short dipole, and how this may be considered to be the limiting case for the sinusoidal current distribution....
27 November 2020 5,420 5 View
Hii Everyone, I'm designing Stacked RDRA for 5GHz frequency and got the results mentioned below dielectric constant= 10.2 B.W= 4.65 GHz Gain=4dB Radiation efficiency=93.5% ( accepted power=...
26 November 2020 5,130 3 View
Hello everyone. I install the receving antenna for my receiver on the same tower that have broadcast-FM antenna . The broadcast-FM transmitter operate around 15 kiloWatts and the distance between...
25 November 2020 7,082 10 View
I made the patch antenna with 8 via holes and 1 hole to feed, and it operates at 5.8 GHz. And I suspended the superstrate, which has PRS(Partially reflective Surface), to make a Fabry-Perot cavity...
24 November 2020 3,910 3 View
hello everyone i hope you all be safe and sound during quarantine! OK i designed an antenna (MPA) in CST. now i want to determine its equivalent circuit model by ADS. is it possible? and how...
22 November 2020 799 11 View
I am a research scholar, working on wearable antenna design for wireless and biomedical application. I have 2 questions. 1. simulations are being done for some designs and obtaing gain less than...
22 November 2020 3,034 7 View
My plan is to fabricate a conformal microstrip patch antenna. I am going through the simulation works first. I already simulated the planar antenna. Now I am trying to simulate it with different...
20 November 2020 3,096 2 View