[South Florida DX Association] The CCD antenna

[npalex at bellsouth.net]

Bill ,
You might want to get a copy of World Radio and see the comments of Kurt N Sturba, well known author of antenna articles and comment on antennas.   Although a pen name, he does do a good job in his evaluations and has debunked many and critized many manufacturers regarding their claims.  
He makes the point that in affect there is no distributed current improvement.   You might make the simple argument that if you insert lumped constant L into the antenna to shorten it physically, then adding series C lump constants will just require it to be physically longer.  That was the basic idea of Mosley's capacitive coupling of the feed point in their Classic design.  A longer driven element, feed with a length of coax stuck in the end (a capacitor) of the proper length to give a matched feed.
--
Regards, 
Norm



> I saw this ad on QRZ and copied the claims below...Has any one has bought it 
> or has any experience with this type antenna? Yes I have Googled it and read 
> all the stories. Just wondering if any one on SFDXA had used one. 
> Bill W2CQ 
> 
> http://www.ccdantennas.com/CCD/ 
> a.. A wire antenna with about 4.5db gain over a half wave dipole 
> b.. An antenna that is markedly quieter on receive..generally as quiet as 
> a loop or better 
> c.. An antenna you can hide from that little old lady in the HOA yet not 
> compromise in size and performance...with antennas size does matter! 
> d.. Something you can mount up high, close to the ground, or even laying 
> ON the ground!! 
> e.. It doesn't compromise by trying to be a multi-band antenna and working 
> marginally on all bands - it works exceptionally well on the band it's made 
> for. 
> f.. Handles static discharges as needed all along the antenna in lightning 
> and sand storms. 
> g.. Can run full legal power on the band it's designed for. (note: if 
> installing it along eaves or fence lines power should be lowered to safe 
> exposure levels) 
> The CCD antenna is like nothing else on the market. And it just might be 
> that bit of magic you've been looking for. 
> 
> CCD means Controlled Current Distribution. This is a full wave dipole (or 
> long wire) that has a series of capacitors mounted along the wire on 
> specially designed boards. The idea being that the current distribution 
> along the entire antenna wire is relatively constant. 
>