Gain vs. isotr. Rad.  19.0 dBi
Gain vs. Dipole       16.8 dBD
-3 dB E-plane         22.2 deg.
-3 dB H-plane         22.8 deg.
F/B                  -37.7 dB
F/R                  -32.5 dB
Impedance               50 ohms
VSWR Band Width       1.05:1 *
Mechan. Length        1940.1 mm plus 2 x 15 mm offset
Electr. Length        8.39 λ

Stacking Dist. h-pol. (1296.2 MHz)
top-to-bottom         0.585 m or 1.92 ft
side-by-side          0.601 m or 1.97 ft

*) at 1300.0 MHz

How many VHF operators have been looking up this design since Dec. 2020?

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Geometry

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This Yagi with 3.2 mm elements

Ele. 3.2 mm DE 4.0 mm Boom 7.5 x 7.5 mm ABS Plastic Ele. fastening &. photo acc. F4FEY

"Ready to saw and drill" data for mounting elements through this plastic boom:


Coming soon ...


The Drivers diameter is 4 mm.
The EZNEC model is done with Auto-Segmentation at 1296.2 MHz

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This Yagi with 3/16 inch = 4.763 mm elements

PLEASE NOTE THAT THE FOLLOWING DATA ARE UNTESTED!

This table is engineered with care but in case you decide to build this Yagi
be prepaired to not get a fully working on 1296.2 MHz Yagi!

Boom shape: square Boom dim: 5/8 x 5/8 inch Wall thickn.: 1.6 mm Holes in boom: 7.5 mm Offset rear: 70 mm Offset front: 70 mm

"Ready to saw and drill" data for mounting elements through this plastic boom:

The Drivers diameter is 4.763 mm.
The EZNEC model is done with Auto-Segmentation at 1296.2 MHz

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Pattern and VSWR Plots

Elevation and Azimuth plot at 1296.2 MHz

 

Return Loss and SWR plots - simulated

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Downloads

None so far.

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73, Hartmut, DG7YBN