HELP in simulation using HFSS -- URGENT PLEASE HELP

Hi

I have attached a loop antenna layout. It is to be done on a PCB.
Please see the HFSS project file attached
It is to work at 434MHz.

I have the following doubts.
1. Do i need to have a ground plane.
2. How to exite the antenna. the input to the antenna is on the center of the loop on the x axis.
3.how to simulate and get the s parammeters and the gamma.

Everybody please help. needed for my thesis and i am not an antenna student.

Please help...

HI,
You didn't attached the project. I am unable to open it. PLease upload whole project file then only I can help.

Hi ,

Here is the project file. please help me.

I want to know how to get a plot of gamma vs frequency showing at dip at 434MHz for my thesis defense. Also i am going to exite this structure through a 50 Ohm connector.

Your help will be much appreciated.

First you need to use a ground plan under the substrat, by Cu for exp.
And you need to apply the radiation condition for the air box, change the stripline length to excite the ring from edge of substrat, suppose lumpport.

s and gamma would be got in hfss/report.
Goodluck

Added after 5 minutes:

Sorry i mistook your meaning, no need a ground plane, for a loop ant