[TowerTalk] Effect of element shape was: Re: InnovAntennas contact info

[David Gilbert]

Sorry, Chip.

Both Cebik and the paper linked below disagree with you, and therefore 
so do I.

http://www.academia.edu/2441284/Design_and_Development_of_UHF_Moxon_Antenna

Ever wonder why you never see a three element Moxon if a Moxon is 
nothing more than a close-spaced yagi with bent ends?  Apparently you 
haven't.

Dave   AB7E



On 3/20/2013 10:22 AM, W1YW at aol.com wrote:
> Sorry Dave; the Moxon phasing is caused by the 1/8 wave separation. It is a
>   close-spaced 2 el Yagi.
>   
> The Hex is a Moxon with W bendbacks of the driven and parisitic.
>   
> The virtue of the Moxon is that it fits in a  form factor that  is  about
> 1/4 wave by 1/8 wave, as opposed to 1/2 wave by 1/8 wave. This  makes it
> practical to support as wires as opposed to tubes. The Hex shrinks the  long
> extent a bit more.
>   
> Best,
> Chip W1YW
>   
> -------------------------------------------------------------------------
>   
>   
>   
>   
> In a message dated 3/20/2013 1:16:10 P.M. Eastern Daylight Time,
> xdavid at cis-broadband.com writes:
>
> Yes.  A true Moxon has less forward gain (only slightly so on  a proper
> design) and less front-to-side than a normal yagi, but it has a  really
> deep notch off the back.  The statement that a Moxon is  nothing more
> than a 2 element yagi with bent ends is simply false. There  is a phasing
> component that is not purely  parasitic.
>
> 73,
> Dave    AB7E
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>