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Yes, definitely it can have lower gain than isotropic.
But my question was whether it can have lower gain (in dBi) than isotropic (that radiates the same total power) in the direction of peak radiation?
volker@muehlhaus
What is the definition of dBi then? Is the following definition correct?
" dBi is the measure of radiated power of an antenna in any direction w.r.t. the radiated power of an isotropic antenna radiating the same total power "
If the total radiated power of the isotropic...
Can an antenna have negative dBi in the direction of peak radiated power ?
dBi is the measure of radiated power of an antenna in any direction w.r.t. the radiated power of an isotropic antenna radiating the same total power, right?
So, in the direction of the maximum radiated power, the dBi...
Hello,
I am trying to plot the near field pattern of an antenna in CST MW studio.
If I set a small reference distance, I get a warning like the following screenshot - 'The reference distance is smaller than the required minimum distance (0.31852 m) regarding the selected origin. Thus, the...
Hello,
I am simulating a vivaldi antenna of size 30.2 X 44.4 mm^2 .
I calculated the far-field distance at 4 GHz to be 53 mm, using the 2D^2/lambda formula from Balanis, where D is largest dimension , i.e. 44.4 mm.
In simulation, I plotted the near field (both in CST and HFSS). I...
Hello,
I am trying to plot the near field pattern of an antenna in CST MW studio. I have the following confusions:
1.
I plotted the far field. Then in the properties window, I unchecked the 'use farfield approximation'. In the origin tab, I set the origin of farfield as 'Origin of coordinate...
Hello,
I am trying to plot the near field pattern of an antenna in CST MW studio. I have the following confusions:
1.
I plotted the far field. Then in the properties window, I unchecked the 'use farfield approximation'. In the origin tab, I set the origin of farfield as 'Origin of coordinate...
How can I define a new material with the epsilon , conductivity, tand, and mass density ?
I can see options for either conductivity or tand. How to provide the values for both?
Also, is there any way to deactivate the dispersion ? CST automatically does the fitting ?
How to assign constant...
I am receiving the following error when I click on the 'Port signals' under 1D results. Can anyone help me understand why is this happening, and how to solve this problem?
TDSolver: CST Exception abort: Could not flush operations, even after 5 tries.
Caught exception: SQL error message...
Hello,
I have some S11 measurement results from Agilent N5230A PNA. However these files are in .csa format. Can anyone please suggest how to open a .csa file? Or how to convert it to another format, e.g. excel or text or .s1p?
Thanks.
I see. CL refers to Latency, right? So, does that mean the STD slot and the RVS slot have different CL? Then how is the old RAM working in both slots, while the new RAM is working only at STD slot?
Yes when I opened the laptop, the RAM slots had DDR4 written on them. And also my new DDR4 RAMs are working on the slot marked as std. So this model supports DDR4.
Hello,
I have an antenna emitting microwave radiation and a multi-layered brain model in front of it having a tumor. For calculating round trip travel time of the microwave signal to-and-from the antenna and the tumor, will I have to consider the shortest path or the shortest time?
Thanks in...
Thank you very much for your reply. However, I don't have access to any Phase Noise Analyzer. I have the spectrum analyzer R&S FSL in the Lab which I need to use to measure phase noise. I understand the results are not correct with spectrum analyzer (direct method) , so we need to use frequency...
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