Gizmotchy

Each element consists of three rods arranged 120 degrees apart in an inverted "Y" configuration.

The driven element is essentially a three-part dipole.

The third rod is what would be the other half of a regular dipole and points downward 120 degrees from vertical on the opposite side of the support pole from the downward-pointing driven rod.

The other elements are parasitic radiators like those of a Yagi except consisting of inverted "Y"s. Like the Yagi, the Gizmotchy is a directional antenna with a forward gain of approximately 12 dBi and a front-to-back ratio of 28 dB.

The unique design of the Gizmotchy allows both vertical or horizontal polarization, through the use of separate gamma matches and transmission lines.

A schematic drawing of a Gizmotchy antenna