David wrote:
Is it that "simple" ? If so, that would be easy to construct in a
flexible whip (which is my aim) compared to many of the other suggestions.

The non-simple part is designing the 180 deg. phase
shifting coil. I think I have one of those on my
Diamond mobile antenna.

Is the gain the same as a dipole ?

Higher than a dipole - close to 6 dBi compared to the
1/4WL ground plane at *about* 0 dBi.
--
73, Cecil http://www.qsl.net/w5dxp

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