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Type: Posts; User: chenfire

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1. ## Thread: Two patch antennas gain

by chenfire
Replies
3
Views
323

### Closed: Re: Two patch antennas gain

Thank you for your respond.

This is a result of a simulation. I am looking for a mathematical explanation for this phenomena.
2. ## Thread: Two patch antennas gain

by chenfire
Replies
3
Views
323

### Closed: Two patch antennas gain

Hello all,

I have a question regarding two patch antenna array. does the distance between the patches varies the gain? (they are separated with at least lambda/2 so neglect coupling)
I think that...
3. ## Thread: Virtual antenna array vs pattern multiplication

by chenfire
Replies
0
Views
145

### Closed: Virtual antenna array vs pattern multiplication

Hello,

I have a general question regarding to the difference (if exists) of these two terms.
In some papers, virtual antenna arrays is used to described the spatial convolution between Tx and Rx...
4. ## Thread: extraction s11_phase s11_magnitude s21_phase and s11_magnitude in cst

by chenfire
Replies
5
Views
2,327

### Closed: Re: extraction s11_phase s11_magnitude s21_phase and s11_magnitude in cst

Are u sure that your matlab code is correct?

Did u solve ambiguity issues?
5. ## Thread: Computing scattered field when using floquet ports

by chenfire
Replies
0
Views
299

### Closed: Computing scattered field when using floquet ports

Hey there,

I have a simulation that uses floquet ports.
My goal is to compute the scattered field at the origin,

I've noticed that when using floquet ports i can't choose whether to compute...
6. ## Thread: Plane wave with Master Slave in HFSS

by chenfire
Replies
3
Views
1,188

### Closed: Re: Plane wave with Master Slave in HFSS

I've thought about that, but i wonder what does I simulate if master/slave applied on three axes?

Is this type of warning is critical If I look for the E field at the origin?
7. ## Thread: Plane wave with Master Slave in HFSS

by chenfire
Replies
3
Views
1,188

### Closed: Plane wave with Master Slave in HFSS

Hey ,

I created HFSS simulation that contains a structure, surrounded by air box.
Mastr\Slave boundary conditions were forced on each face of the box (3 masters and 3 slaves).

The structure...
8. ## Thread: Looking for a specific material

by chenfire
Replies
2
Views
512

### Closed: Looking for a specific material

hey there,

Im looking for materials that thier relative permetivity is in between 10 to 200.

I hope that somone here knows where can I find a list

thanks a lot
9. ## Thread: Feeding a rectangular wavegude with two pins

by chenfire
Replies
1
Views
680

### Closed: Feeding a rectangular wavegude with two pins

hey there,

I built in hfss a rectangular wave guide and two pins that should feed him.
I wish that the waveguide will only let TE20 mode to propogate.

How can i make it?
which kind of ports...
10. ## Thread: S parameters in HFSS

by chenfire
Replies
2
Views
3,504

### Closed: S parameters in HFSS

hey there,

I built a simulation in hfss, and want to view a graph of S11 vs freq.

The simulation contains two floquet ports (1 and 2).

I can't understnad the meaning of...
11. ## Thread: Bi anisotropic slab in hfss

by chenfire
Replies
7
Views
1,123

### Closed: Re: Bi anisotropic slab in hfss

never mind,
I found the tan(dleta) for mu.

I still dont know how to make bi -anisotropic material.
12. ## Thread: Bi anisotropic slab in hfss

by chenfire
Replies
7
Views
1,123

### Closed: Re: Bi anisotropic slab in hfss

Another issue, what is the loss tangent for mu?
i mean, tan(delta) is the loss tangent for epsilon, so what is the loss tangent for mu?

thanks
13. ## Thread: Bi anisotropic slab in hfss

by chenfire
Replies
7
Views
1,123

### Closed: Re: Bi anisotropic slab in hfss

In the following picture u can see zeta and Xsi, which i call them couplling matrices:

133071
14. ## Thread: Bi anisotropic slab in hfss

by chenfire
Replies
7
Views
1,123

### Closed: Re: Bi anisotropic slab in hfss

Well,

I found how to make mu and epsilon matrices, but what about coupling matrices?
I dont think that they are there...
15. ## Thread: radial current - quasistatics

by chenfire
Replies
0
Views
403

### Closed: radial current - quasistatics

hey there,

i've noticed that in any quasistatic problem, the current (that can be induced) is a radial current.

Is it true? why is that?

thanks a lot!
16. ## Thread: Assigning Wave Propagation Vector K in HFSS

by chenfire
Replies
3
Views
1,211

### Closed: Re: Assigning Wave Propagation Vector K in HFSS

sure,

right click -> add excitation -> plane wave.

then a new window will show up, u will be able to select the zero phase place (which is setted to the origin),

then press next and it will...
17. ## Thread: Assigning Wave Propagation Vector K in HFSS

by chenfire
Replies
3
Views
1,211

### Closed: Re: Assigning Wave Propagation Vector K in HFSS

hey there,
it seems that u want to excite ur structure with a plane wave.
just add a plane wave excitation and select Ex and ky.
note that if u select EX=1, Ky=1, then Hz=-1/n (when n is the...
18. ## Thread: Bi anisotropic slab in hfss

by chenfire
Replies
7
Views
1,123

### Closed: Bi anisotropic slab in hfss

hey there,

I want to define a bianisotropic slab ( i have the required 4 matrices),

how do i do it using hfss?

thanks a lot!
19. ## Thread: improving accuracy in hfss

by chenfire
Replies
3
Views
1,169

### Closed: Re: improving accuracy in hfss

do u know if there is a chance to increase the number of the mesh's tirangles?
20. ## Thread: improving accuracy in hfss

by chenfire
Replies
3
Views
1,169

### Closed: improving accuracy in hfss

hey there,

what can i do, besides increassing maximum number of passes and decressing maximum delat energy
to get more accurate results?

thank you
21. ## Thread: reading files in matlab after exporting in hfss

by chenfire
Replies
1
Views
644

### Closed: reading files in matlab after exporting in hfss

hey there, i 've exported hfss's magnetic field file.

the file contains a lot of samples in this form:
Rho, Phi, Z, Complex Vector data "<Hx,Hy,Hz>"
when Hx,Hy,Hz has 2 components.

I wold...
22. ## Thread: static field excitation in hfss

by chenfire
Replies
0
Views
473

### Closed: static field excitation in hfss

hey there,

is there any option to excite a structure with a static field?

Thank you
23. ## Thread: Extracting currents or fields from hfss

by chenfire
Replies
13
Views
1,173

### Closed: Re: Extracting currents or fields from hfss

As i said, polyine 1 is a non model line and appears in the field report. this isn't the problem,
Reciving field on one line will not solve my issue which is to recive it over a surface.
24. ## Thread: Extracting currents or fields from hfss

by chenfire
Replies
13
Views
1,173

### Closed: Re: Extracting currents or fields from hfss

polyine 1 is a non model line.
i've also tried to draw a non model structure, and i couldn't see it in the drop down list.
25. ## Thread: Extracting currents or fields from hfss

by chenfire
Replies
13
Views
1,173

### Closed: Re: Extracting currents or fields from hfss

For sure, no.
Torus's surface, like any other surface is a 2D essence, but it varies in X Y and Z.

What i'm tring to say is that variation in X Y or Z alone, won't solve the problem.
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