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HI MacGyFu
The TRL calibration technique need the Line impedance and the length of the lines, I can attach you the LIMCAL software, this is a multi line TRL calibration program may be can help you.
It is very easy to use you need to follow the next steps
1.- Calibrate the VNA with SOLT as...
Hi
I try to simulate a 50 ohms microstrip line with CST until 10Ghz and I have a unusual behavior in the S parameters also I compared the results with momentum and the results are deferents can some body help me with the CST setup to simulate the microstrip transmission line. I attach the S12...
Hi All
does any one can help me with this doubt
I have a GSM anenna and a 433MHz Radio antenna in my system, how far i need to put the antennas to avoid interference between them or not matter the distance this signals do not interfere with each
Hi vfone,
Thanks for your help, but I would like to know some definitions too, for example
what mean spurious emission it the same as the harmonics. when you make RSE testing you test the device in IDLE and traffic mode, can you give me a definition of idle and traffic mode, is possible to have...
Hi
Some one can help me to find information about RSE (RADIATED SPURIOUS EMISSIONS)
(application notes or a book where I can find some information about RSE)
Hi thanks for you answare, yes I have VNA, my problem is the set up,
do you know a easy set up to measure the chip impedance
I have a CASCADE MICROTECH Summit 9000 Probe Stationation and a VNA,
Thanks
Hi I am trying to plot the radiation pattern of a directive antenna, the simulator that I am using give me the radiation pattern as show in figure 1 the red color is the strongest signal, but when I plot that radiation pattern in matlab the color red is only in the top of the plot and in the...
I bought a GPS Patch antenna with a LNA, the specifications say that some LNA has a SAW filter in the input or at the output, some one know why the are using SAW filters at the LNA input or at the output, wich is the difference and If I put the SAW filter I will creases the noise figure?.
Hi All,
I have the design of a planar antenna on CST(see fig) with the ground plane in the same plane as the antenna, the ground plane and the antenna are connected by a discrete port , when I make a frequency domain simulation I have this error "Resonant frequency domain does not support open...
Re: feed a planar antenna with coax cable or discrte port in
HI James
thanks for your help but now I can't simulate in frequency
I have this error
"The length ratio between the shortest and the longest model edges is 1:1286. The shortest model edges can be highlighted via objects/solid...
Re: How to plot gm in ADS?
Hi,
If you have only the current and the voltage you need to make a sweep in VGS then only put gm=diff(IDS)
I can help you if you send me more info
thanks
Hi everybody
I already design a planar antenna in cst(monopole) but I don't know how to feed the antenna with a coax cable because the ground is in the same plane as the antenna
i used a discrete port but I don't know if I am correct because
I had to change the impedance (10 ohms) to have the...
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