请问：如果需要设计RFID芯片的天线，最好（或者最易上手）的软件是什么？谢谢了

推荐Zeland IE3D软件，建模简单，直接画上去就行了，且仿真速度较快，比较适合设计平面结构 。

wnat is the operating frequency? HF or UHF or MW? you should learn how to ask question first.

thanks panda.  operating frequency is UHF,about 915MHz. .
因为公司现在要立项研究UHF方面，而我对这方面不是很清楚。希望可以得到支持。如果有熟悉这方面的也可以说说设计RFID芯片天线的历程或心得。
LF和HF的芯片天线相对简单一点，有机会可以大家交流一下。谢谢各位！

同时也要谢谢kzlxp ，我正在找IE3D，看看是否合用。谢谢了

simply speaking, dipole antennas can be used for UHF RFID tags if you don't consider the object which the tags will be attached to. There is one paper published in IEEE T-MTT which discussed the effects of objects on the performance of the antennas and co-design concept. It may be helpful to you.

the key is to know exact output impedance of the chip used in tags.

Is  paper's name  "The Art of UHF RFID Antenna Design:Impedance-Matching andSize-Reduction Techniques"
The writer is  Gaetano Marrocco.
if you have another papers, please Email to me,or upload it. thanks

HFSS就挺容易上手的。不过有限元的算法计算速度相对矩量法没有优势。