Re: NEC-LIST:Band width of Yagi

> HI All,
> This is probably an old question but what is the bandwidth of a
> YAGI. As far I know it is very small . Is there away of broadening the
> bandwidth ? How much can one get ? For low Gain YaGI's (3 or 4 elements) Is
> the bandwidth wider ?

 Bonjour,

Here are ways to increase the bandwidth of a Yagi :

1 - Increase elements diameter.
2 - Increase the length difference between elements : longer reflector,
shorter directors.
3 - Use a log-yagi.

How much bandwidth you can get depends, for practical reason, of your
operating frequency. Obviously it is easier to increase the bandwidth
at UHF than at HF.

For a very large bandwidth you may need to use a log-periodic instead
of a yagi.

Regards,

Gilbert.

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