crossed yagi for sat reciever

[hejas.sp]

hi
for a crossed yagi antenna how can we feed a 90 degree phase shifted signal?
please help

 

[jiripolivka]

The feed should be made with a delay section of the feed line. Consult e.g. the ARRL Radio Amateur's Handbook or ARRL Antenna Handbook for details.
In principle the delay section is a quarter-wave long feed line. As coaxial cables have a dielectric inside, you should use the "shortening" factor available from cable specifications.

 

[vfone]

**broken link removed**

 

[hejas.sp]

HI
thanks a lot for ur help