Circularly Polarized Patch Feed for 1296MHz

[Admin 2545]

Features

Compact circularly polarized patch feed for small dishes

Top notch performance

Focus and easy manufacturing and low tolerance sensitivity

Feed it in quadrature for circular polarization

Also an excellent choice for linear polarization in deep dishes ,use each port separately for linear polarization

Suitable for f/D from 0.28 to 0.45 covered in two variants

Comprising a choke(baffle) structure as well as a Beam Forming Ring(BFR)

 

,,,by SM6FHZ Swedish EME

[Admin 2545]

,,,good, and the results, after simulations....

Dimensions...

 

[Admin 2545]

,,,and here's how the BFRing antenna behaves in a parabolic dish with a diameter of 1800mm and f / D = 0.43...

[eco32 27]

@Admin
This is amazing, this ring makes no obfuscation effect. The feed on the 1296MHz is usually large, and here it works as in an ofset antenna. I have not seen such a design before. BTW, Are You doing EME?