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Hi all,
I have two fixed square waveguides with slightly different cross section, and they are shifted along x and y axis.
I have to design (in HFSS) a waveguide interconnection that allow this connection and implement the x-y shift.
I have just tried to use mitered and continuous bands (with...
Hi,
I am not very skilled in this field.
I should calculate the Coupling Matrix of a Pseudo-HPF for fixed parameters (Bandwidth, Return Loss, Number of cavities and Single transmission zero).
What is the mathematical procedure ?
I have read some papers and docs but they are so confused and...
Hi,
I am searching, paper, books etc etc to design, in HFSS or CST, Directional Loop Couplers, like this **broken link removed** (pag 35).
I don't undestand how the 2 SMA and the waveguide coupled and if the second SMA is load.
Then, in detail, where is the network between the 2 SMA and in...
Hi everyone, i will need to design a 4-port waveguide coupler for square waveguide and the center frequency in 19GHz.
Each kind of dimensions for the 2 square waveguides, holes or other are good.
In addition, the waveguide should be parallel in order to connect other downstream levels
To...
Hi,
I have a simple question to do. I have implemented a 4 ports coupler 3dB of 2 rectangular waveguide.
Each port is excited by 2 mode (vertical and horizontal) in order to verify if the coupler is dual mode.
When I create a quickly report, there are a lot of S Parameters defined i.e...
Hi, i would import a structure with all data from HFSS to CST.
I have already tried exporting this antenna in the format .sat but when I import this file, I obtain only the structure without all parameters (materials and so on).
In which way I can fix it.
Is there a way to export in HSFF all...
Wait, I know that: The near-field zone of an antenna is defined from the ratio of its aperture size to wavelength.
But I have 2 problems with this definition.
1) This is true for an aperture antenna, but what is the aperture size for another kind of antenna (i.e. patch) ?
2) In order to...
Hi,
I would like to know, how is the correct distance between the antenna under test and the probe using the planar near-field technique.
Someone could help me to understand more about this.
thanks
Marco
I would design and simulate a rectangular microstrip antenna with CST in order to analyze its farfield.
Can someone give me all dimensions and parameters to design this kind of antenna ?
Hi, I'm working on a NearField to Farfield (planar scanning) code in matlab.
I have just tried to test this code on an easy structure (open-ended waveguide) but the radiation pattern is different from that obtained using literature equation.
Does someone know a working script to implement the...
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