Tomsin
Newbie
hi guys,
does anyone know about pillbox antenna for LMDS? now am doing a project about sector horn,but some
happened.the questions as follows:
first,how to design the aperture to meet the azimuth power pattern?now gain and HPBW are very well,but the power pattern is not suitable for ETSI.
second,the peak of elevation power pattern is starting bias 1 degree not zero degree,also the null fill is so weak that not meet the specfication that we need.i cannot find some useful information to explain it,in my opinion,the offset feed and the length of the aperture are not imperfect.
third,some literatures tell that combining ray-tracing theory and CST can complete the design,so could someone give me some advice about ray-tracing theory for the sector horn?
looking forward to ur replies!
thnx in advance.
Tomsin
does anyone know about pillbox antenna for LMDS? now am doing a project about sector horn,but some
happened.the questions as follows:
first,how to design the aperture to meet the azimuth power pattern?now gain and HPBW are very well,but the power pattern is not suitable for ETSI.
second,the peak of elevation power pattern is starting bias 1 degree not zero degree,also the null fill is so weak that not meet the specfication that we need.i cannot find some useful information to explain it,in my opinion,the offset feed and the length of the aperture are not imperfect.
third,some literatures tell that combining ray-tracing theory and CST can complete the design,so could someone give me some advice about ray-tracing theory for the sector horn?
looking forward to ur replies!
thnx in advance.
Tomsin
