Boda antenna construction

This is the place for any magazine-related discussions that don't fit in any of the column discussion boards below.
Post Reply
Rodney
Posts: 162
Joined: Sat Aug 31, 2002 1:01 am
Location: Titusville, FL USA
Contact:

Boda antenna construction

Post by Rodney » Sun Aug 03, 2014 11:58 am

I am curious as to what a BODA antenna is. One of my source describe it as a boosted omni directional antenna constructed by just taking the outer shield of a coax and folding it back over the original cable and leaving the center conductor that is now exposed as the antenna. The length of the exposed center conductor being a 1/4 wavelength and the folded back portion of the shield of course also being 1/4 wavelength. This is for 2.4GHz use so that 1/4 wavelength is about 38 mm. This is supposedly superior to just having the 1/4 wavelength center conductor exposed. Any thoughts on this from any of you?

User avatar
Lenp
Posts: 1454
Joined: Thu Oct 26, 2006 8:11 pm
Location: Maryland
Contact:

Re: Boda antenna construction

Post by Lenp » Sun Aug 03, 2014 7:51 pm

Never heard of that, but by your description, a 'ground plane' comes to mind.
A quick Google seems to show it is in the R/C field!
Len
Len

“To invent, you need a good imagination and a big pile of junk.” (T. Edison)
"I must be on the way to success since I already have the junk". (Me)

Robert Reed
Posts: 2276
Joined: Wed Nov 24, 2004 1:01 am
Location: ASHTABULA,OHIO
Contact:

Re: Boda antenna construction

Post by Robert Reed » Sun Aug 03, 2014 9:07 pm

I have seen Vertical Dipoles described in that way.

User avatar
Externet
Posts: 1857
Joined: Fri Feb 01, 2002 1:01 am
Location: Mideast USA
Contact:

Re: Boda antenna construction

Post by Externet » Mon Aug 04, 2014 5:16 pm

The description turns a ground plane quarter wave into a dipole as Robert says. The BODA seems an acronym (boosted omni directional ant.) that has no boosting at all, unless referred of the gain change from quarter wave to half wave dipole. Check if under another name vertical 'bazooka' antenna fits your description.

----> http://api.ning.com/files/KhKaa56BSVXe* ... coxial.jpg

----> http://www.iw5edi.com/ham-radio/?the-ve ... antenna,18

Miguel
- Abolish the deciBel ! -

User avatar
jwax
Posts: 2201
Joined: Mon Feb 09, 2004 1:01 am
Location: NY
Contact:

Re: Boda antenna construction

Post by jwax » Wed Aug 06, 2014 3:56 am

Reminescent of a "colinear" antenna.
Here's one with some Gain:
http://www.nodomainname.co.uk/Omnicolin ... linear.htm

Post Reply

Who is online

Users browsing this forum: No registered users and 39 guests