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Da Huang

Last seen: 21 days ago |  Active since 2019

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Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

4 years ago

Answered
Alternatives to pcbStack for array element in Antenna Toolbox?
pcbStack is not currently supported in array objects. Currently there is no plan for it. But you can create arrays in pcbStack o...

5 years ago | 0

Answered
Patterncustom function - colobar properties
right click on the colorbar will bring up its property panel for editing.

5 years ago | 0

Answered
Dielectric meshing error due to frequency/epsilon_r combo?
Could you share your code? it is hard to provide any help without the example.

5 years ago | 0

Answered
Patch antenna with multiple feeds with independent voltage and phases
Hi udax, if you setup the FeedLocations property properly in pcbStack object. Then you shall be able to set the FeedVoltage an...

5 years ago | 0

| accepted

Answered
Create Gerber file from antenna design
Hi, You need to specify a substrate in order to generate the gerber file. Please see the following code. ant = spiralArchi...

5 years ago | 0

Answered
Antenna toolbox: Radiation pattern for linear array yields different results when same array is modeled as conformal
Hi Marios, By going through your code, I notice that you call the pattern function through: [F5,azi5,elv5]= pattern(la1,fd,90...

5 years ago | 1

| accepted

Answered
simulink plot antenna pattern
Not sure why you want to implement the code in simulink. But what you want to do can be implemented in matlab script, then mayb...

5 years ago | 0

Answered
how to use antenna array block set to program a spiral antenna array in a specific array configuration?
there are two spiral antennas currently supported in antenna toolbox, spiralArchimedean, and spiralEquiangular. you can place t...

5 years ago | 0

Answered
how to obtain the gain of antenna from antenna pattern file at a particular elevation and azimuth angle.
if you are trying to reconstruct the full 3D pattern from two slices of the pattern. you may find the following example to be us...

5 years ago | 0

| accepted

Answered
How to get a 4-turns Rectangular loop antenna in Matlab or using the antenna Design toolbox?
Not sure what is your actual antenna shape, but you can use customAntennaGeometry in antenna toolbox to build your own 2D/planar...

5 years ago | 0

Answered
Polar plot draw line at -3dB opening
if you have antenna toolbox or phase array toolbox, you can use polarpattern function to plot your own pattern. it also provide...

5 years ago | 0

Answered
I have a new i7 laptop with 64 GB of RAM running and a home edition of R2108b. I am new to Matlab, but why is it that impedance is running slow? I have nothing else running. It takes me 8 hours to do 50 points for a simple patch ant. Why so long?
The issue here is the substrate, the solver slows down when there is a non air substrate in it. To ensure customers have a vali...

5 years ago | 0

Answered
How can I write a code to find radiation pattern of reconfigurable antenna?
You can use customArrayGeometry objecct in antenna toolbox to create the radiation antenna without the substrate, and then creat...

6 years ago | 0

Answered
setting resonant frequency and finding circuit properties (power, current, voltage) for a wireless power transfer system
Hi Yuri, Hope the following answer your question. In the wireless power transfer example, you need to change the default spi...

6 years ago | 0

| accepted