Implanted PIFA antennas
dear friends
I performed a simulation for a PIFA antenna embedded in a tissue model.this antenna designed for 402-405MHz but I face with a bad S_Parameter result.
how can I improve it?
I attached the antenna configuration and the properties of the tissue.
It's so urgent for me.
thanks.
如果PDF里的圖6.6不是CST軟件仿真出來的，有些差異是能夠接受的哈。我覺得你的仿真結(jié)果更接近實(shí)測結(jié)果。
Dear Charles.l
Thanks for your reply.
I'm so confused because I think it's better to resonate at 402-405MHz(i.e medical frequency band)with -10dB of S11,is'nt it?
呵呵，你的文件我看不太懂，我打開了文件，只有PDF我才看懂一點(diǎn)，你使用的是陶瓷板么？我是覺得挺不錯的，如果你考慮用其它的介質(zhì)板不太了解，我們可以互相溝通下，這只是我的建議！
Dear friend
I just want to know how can I improve my S-parameter result?
in the below picture you can see thecorrect result and my results together.
the first one is the correct result and the second one is my result.
it shouldbe work in 402-405MHz.(i.e -10dB S parameter should be in this frequency band)
so,how can I improve it?
I think that you can chage the locations of short point and feed point .Try it.
Dear james
the positions of the feeding and short pin are as the below picture
do you think that it may be wrong?
anyway, thanks for your view.
I do my best and change the short pin and feeding together and report the result.
I used a parametric sweep and changed the short pin location and then got the following result :
I think it's a good resonating for 402-405MHz.
but there is another important question,yet.
in the main reference in which I found this antenna the location of short pin is not a correct location
why thewriters of that paper determine the short pin location dishonesty?
Do I make a mistake?
樓主你這個問題解決了嗎？沒有的話，能把你的附件改成ZIP格式嗎？
The problem has solved.
Thanks to all the dear friends.
