[SOLVED] probe length for dielectric resonator antenna excitation using hfss software

[redcrystalline]

hi im simulating a dielectric resonator antenna using hfss softwar, the question is about antenna feeding, im using probe fed and i dont know how shoud i choose probe length
my guess is that shorter length probe give better return loss .
regards

 

[D.A.(Tony)Stewart]

Yes I believe dielectric loss can be indicated dB /cm using k * 10 log (loss tangent.)

 

[redcrystalline]

yes thats right, but the question is about probe length sir.!
thanks

 

[D.A.(Tony)Stewart]

The probe length is generally chosen to be less than the height of the DRA, to avoid probe radiation. YOu might consider a stub on the other side for tuning the antenna. (Added) other side of DRA on same surface.

 

[redcrystalline]

so interesting, your answer was so useful , thanks for your answer
regards