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  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Fri Dec 04, 2009 4:53 pm   Subject: Vehicle antennas
Is there an option on POSTFEKO to see the trend of current on the wire (vehicular antenna)?
If there is how they work settings and its operation?

Thanks and good day!
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Sun Nov 22, 2009 8:03 pm   Subject: Vehicle antennas
I wanted to use as reference impedance 50 ohm similar to the impedance of a normal coaxial cable. Finally wanted to find a way to get the graph of SVWR (in my case a parable) centered on the band cent ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Sat Nov 21, 2009 1:05 pm   Subject: Vehicle antennas
Hello,
I have a problem with a vehicular antenna designs. I'm doing simulations on a frequency band with center frequency of 470 MHz and I have set as the reference impedance of 50 Ohm. I got this fr ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Tue Nov 17, 2009 10:57 am   Subject: Vehicle antennas
I managed to reduce the time of the simulation, changing some settings. I removed the calculation of currents and I did a local mesh around the entire structure of the vehicle except on the reference ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Mon Nov 09, 2009 9:28 am   Subject: Vehicle antennas
Initially I had set these parameters:
star frequency: 460 MHz
end frequency: 480MHz
But the simulation time had become very long, I tried to set a narrower range using the parameters that I report ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Sun Nov 08, 2009 10:11 pm   Subject: Vehicle antennas
star frequency: 469 MHz
end frequency: 471MHz
The frequency band center is the frequency that I used the top that was 470 MHz.
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Sun Nov 08, 2009 2:09 pm   Subject: Vehicle antennas
Hello
I'm doing a simulation on a certain frequency band, I've set this thing on continuos (interpolated) range. I set the start frequency and end frequency but I left everything else default. The pr ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Tue Nov 03, 2009 10:00 am   Subject: Vehicle antennas
Ok I'll try as you suggested, thanks for the help.
But my question is this, I can have a radiation pattern in a different position from origin of the axes?

I traslate the vehicle in order to ha ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Mon Nov 02, 2009 11:27 am   Subject: Vehicle antennas
When I start the simulation with feko I have not problems, but when I start postfeko I have a problem about displaying far fields.
In fact the radiation field is not displayed in the position where ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Sat Oct 24, 2009 11:28 am   Subject: Vehicle antennas
When I go on postfeko where I find the option to see the bandwidth?
I realized the metallic box with a monopole, when I run the simulation with a single frequency does everything correctly.
But when ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Sun Oct 18, 2009 12:22 pm   Subject: Vehicle antennas
Maybe I have not explained well I am sorry.

1) I meant the wire antenna. I built using the line.
2)For the roof of the car, I built using the polygon and I set face type as default.
Basically I ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Sat Oct 17, 2009 12:11 pm   Subject: Vehicle antennas
I'm trying to simulate the antenna spin placed on the roof of the car.
But I have doubts about setting up some parameters.
To set up the rays, I have to individually set the radius of the antenna a ...
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Tue Sep 22, 2009 9:43 am   Subject: Vehicle antennas
Okay I will follow your advice, if I have a problem I'll know you. Thanks for your help and availability.
Hello
  Topic: Vehicle antennas
engineer

Replies: 24
Views: 55205

PostForum: Questions Related to Antenna Theory   Posted: Mon Sep 21, 2009 4:23 pm   Subject: Vehicle antennas
Hello everyone, I have to vehicular antenna design for a university thesis.
I have to evaluate the performance of 2 antennas, individually, based on the location that can have on a vehicle. In the f ...
 
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