UWB antenna

[Admin 2545]

,,,look...

[sandeepv 10]

 

this is the vswr plot we require :).....they are not same please check  where minimum and maximum values of vswr occuring in both plots

[Admin 2545]

,,,it"s ok,,,,but you have the primitive UWB antenna...!!!

[sandeepv 10]

Last question, Can I follow the steps which were used to implement the antennas mentioned in above-attached base papers ? .... with the knowledge I have in antenna design( of course it is low), I will design an antenna. thereafter can I go to the fabrication of the antenna or not? 

[Admin 2545]

,,,you can  go to the fabrication of the antenna but attention to the type of  PCB material ...!!!

[sandeepv 10]

thank you very much.....for your time and suggestions...

[Admin 2545]

sandeepv, would be better if you try and this option....

61eba8bcc42d4e57ab76e65acd6dba90d033.pdf

[sandeepv 10]

definitely jomy  ....I will try today itself ...

[Admin 2545]

,,,a few animation...

[sandeepv 10]

hello, good afternoon... how can we plot peak gain vs frequency plot in HFSS for the above antenna.

[Admin 2545]

For plotting the gain over frequency you need to make a frequency sweep and activate the "save field" option. Then you select under plot Far Fields Reports -> Rectangular plot. Now you can plot the gain versus the frequency.

or...Results/Create far field reports/Rectangular plot

[sandeepv 10]

can you reproduce the radiation efficiency vs frequency plot and peak gain vs frequency plot in the below attached file...i got return loss very well

UWB monopole 9.35mm wo slot1.hfss

UWB (30x30) guitar paper.pdf

[sandeepv 10]

i have calculated efficiency by taking the ratio of (realized gain/ directivity)*100 ...is that expression correct....because i got the efficiencies greater than  100%.

[sandeepv 10]

the below image shows the calculation procedure i did for efficiency

[Admin 2545]

,,,put  a real function value on   Output Variable>Quantities>>>Function....(not "none")

[sandeepv 10]

i modified it but no change in results

[Admin 2545]

sandeepv,,,,you can try and this....??

[sandeepv 10]

is it correct simulation ?

sss.hfss

[Admin 2545]

8 hours ago, sandeepv said:

is it correct simulation ?

sss.hfss

Now I'll try, but why do not you put the plug sma?

[sandeepv 10]

I am not happy with that SMA connector. can you attach the reference paper for the above antenna.

[Admin 2545]

I think something is not ok...

[sandeepv 10]

attach  the reference paper i will check .

[Admin 2545]

New Folder.zip

 

ahaa,ok, the reference paper...I will try to find it...!!

[Admin 2545]

,,,, the reference paper ...!!!

http://www.intechopen.com/books/ultra-wideband-communications-novel-trends-antennas-and-propagation/design-of-a-cpw-fed-dual-band-notched-planar-wideband-antenna-for-uwb-applications

[Admin 2545]

,,,or this...