Re: Q: Biquad Antennas


Arthur Shapiro wrote:
I've decided to build one of these guys, and have been looking at the several
annotated web sites that describe the modest construction details.

Unless I'm missing something, they differ in one possibly critical area: on
some of them the N jack seems to be electrically connected via screw or
solder to the metal plate (is that a ground plane?) In others, the N jack is
clearly isolated from the metal of the plate.

Is anyone here well versed in antenna theory to assert which of these two
possibilities is optimal?

Art

Do you have an URL for a floating reflector biquad?

While both are at ground potential, I consider the surface to be a
ground plane when the spacing from the element to the plane doesn't
matter, while a reflector has a critical spacing between the element
and the grounded surface.

A ground plane would be under a vertical antenna.

I'm of the school of grounding the reflector, but there are cases where
reflectors float, such as in yagis.

.