Jump to content
Sign in to follow this  
KE4UVQ

Flat Ground Plane Antenna

Recommended Posts

I built this 2.4 ghz 3mm driven element GP and I understand there is an effect of the ground radials on a typical GP being at different angles affecting the performance of the antenna and its pattern, this is more like a quarter wave on a car surface. (flat)

Underneath is an SMA female to be connected via RG174 to the transmitter.

I guess my question for you guys is how well would this perform over the stock dipole attached to the transmitter? It would be mounted externally underneath the plane to the rear of the landing gear along the tail moment.

Thanks in advance,

post-2-1074827589_thumb.jpg

Share this post


Link to post
Share on other sites

I think you will be happier with a ground plane antenna (yours is a simple 1/4 wave vertical whip). A GP has ground elements composed of resonant radials, which will be a bit more efficient. And the impedance matching will be a little bit better.

Share this post


Link to post
Share on other sites

I think if you are able to trim it to a good match using a reflectometer then it may work good at high angles, but I would guess a dipole would be better for low angles as you would get at long range.

Terry

UK

Share this post


Link to post
Share on other sites

Never mind fellas, I put the stock dipole outside the fuse and Im getting

5000+ feet with little dropout. Forget the other antenna!!! :D

Edited by KE4UVQ

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...