Triple-Band Antenna help

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unicorn_yun

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Hi,
I am designing a triple-band antenna for both GSM900/1800 and Bluetooth, and I want to know which antenna is suitable for such antenna whose Gain is also required to be 2dBi plus. Now I choose one Folded PIFA, which works for GSM/DCS/Bluetooth Triple-Band Application.
The paper is here,


Thanks for your help.
 

please see the attached paper
 

hi unicorn_yun,

I've tried to simulate but i couldnt get expected results as mentioned in paper.
Do u get good result?
Which simualtor r u using?
 

I cannot get the results as the paper said either. I found that when I adjusted the position of v1 and v2, I could adjust the frequency of Bluetooth.

I use HFSS to simulate the antenna project.
 

A Vialdi has more than enough bandwidth and is easily able to produce more than 2 dBi.
 

I've simulated with the help of ie3d.
I didnt get expected results,
attached here is the RL plot.

regards,
balaguru.
 

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