pls help to design an uwb antenna using Hfss

I am new to hfss. I want to do my final year project in uwb antenna design using hfss 11.please help me to design an antenna.I attached my base paper.

Hello,

Some things to consider before starting the actual design and simulation:

Frequency range
Acceptable VSWR ? Return Loss within the required frequency range
Directivity
Dependency of directivity on frequency.
Radiation efficiency
Gain
Polarization
Maximum size
2D or 3D shape allowed
Allowable dispersion (depends on system requirements)

Designing wide band antennas is (always) a compromise. Small, wide bandwidth and good radiation efficiency don't go together.

Ultra Wide Band Antennas in PCB can have an elliptical 2D form, for instance.
You can find some HFSS tutorials, as starting point to know how to use the software. Ex.
em: talk - HFSS Tutorial 1: Microstrip Patch Antenna

Hi abinaya,

You want to design omnidirectional or Directional UWB antenna ?


/SC

i want to design omnidirectional uwb antenna

hi,
Well then its not a big deal. you can easily design an omnidirectional UWB antenna which covers the entire UWB frequency range from 3.1-10.6 GHz. For example you can have a look at Circular patch antennas,Bow-tie antennas,circular fractal monopole antenna,quasi-selfcomplimentary-UWB antenna etc....all these antennnas are UWB omnidirectional antennas.

They have simple Geometry and very easy to build and simulate in HFSS.

/SC

how about designing an uwb antenna in lower frequency range (UHF range), is it as easy as designing in 3.1-10.6 Ghz?

omni directional UWB at 3.1-10.6 very easy but at low frequency it has some hardship for more information about UHF log priodic antenna u can see the A-info website

Freuency range of ultra wide band antenna is 3.1 to 10.6GHz.

[/COLOR]so can i conclude, that antenna in frequency range 400 Mhz-800 Mhz is not an ultra wide band one

no this range is UWB at UHF band

do you have some hfss simulation for that antenna? or any paper for reference?

this software calculate LPDA antenna for u and you and simulated in hfss after calculate with this software

sir ferdows, thanks alot for this program, it's give me an option to use LPDA, as a Ultrawide band one :)

---------- Post added at 18:44 ---------- Previous post was at 18:40 ----------

sir ferdows, thanks alot for this program, it's give me an option to use LPDA, as a Ultrawide band one :)