OK1DFC Septum Feed

Septum polarize - transformer, feed and all about

Feed with septum transformer 640kB edit from Power Point

Mechanical solution of 10386 MHz Septum feed  33kB

Drawing of mechanical solution for 23 and 13 cm

Theory of septum polarization transformer IEEE source pdf 560kB

Other IEEE source 333kB

DL4MUP solution

Interesting experience of Jan PA0PLY

(Jan do not using tuning screw)

 

If you do not use Excel here is .pdf

23cm 13cm 9cm 6cm 3cm

  Flare for Septum polarization feed theoretical calculation

Flare for all bands - practical solution

Practical experience from Cassegrain system by OK1CA

 

Diagrams of septum polarizer witch calculated Paul W1GHZ

Click on the picture for detail  

    Without flare f/D 0,35 – 0,45   

     With flare for f/D 0,45 – 0,6     

 

W1GHZ page and Antenna book

Analysis of the OK1DFC septum feed by W1GHZ  451 kB

Power Point presentation of Paul W1GHZ - 7Mb

 

Septum polarization transformer-calculation sheet – Excel 24kB