Hello everyone. I created this video to teach antenna design to some of my students and juniors. Just for convenience, I uploaded it on the channel. Thank you for all your love and support for this video. I am no longer working in the field and I am unable to help you in troubleshooting or clearing your doubts. There are many other online resources on Ansys HFSS (or Ansys Electronic Desktop, as it is called now). I hope that you will get a better response from those guys who are currently working on antenna design.
A rectenna is a combination of a rectifier and an antenna. To make a rectifier you need diodes which cannot be simulated using HFSS. You can perform the simulation in Ansoft Designer + Ansoft HFSS. You have to design the antenna separately in HFSS and the circuit parts separately in Ansoft Designer. There is some provision for importing the antenna from HFSS to Designer. I have never done it myself but I found some resources which tells about such designs. I don't have Ansoft Designer. It comes with the Ansys Electromagnetic suite 2014 and higher versions. It is difficult to get a crack of it..
This is good. Being beginer I found it very useful for antenna designing. Could you please Make video for *aperture coupled microstrip patch antenna* Thank you
Thank you. This tutorial is only for showing how to make a rectangular patch in HFSS and see the results. Inset feeding is needed to match the impedance and bring the S11 parameter below - 10 dB at 2.4 GHz. 3.7 GHz is the 2nd order resonant frequency. It will radiate in X or Y direction. In a rectangular patch antenna, we only see the first order resonant frequency (dominant mode of the cavity model).
Very Nice work I really enjoyed it. can you do something on step impedance filters. Can you also make them a little longer because this is a very interesting topic and package to use.
Thank you, Idris Musa. I basically work on antenna design. My next videos will contain inset feeding, antennas with variable dimensions, and the optimetrics tool of HFSS. After that I will try to make some videos on step impedance filters.
Thank you for that, I shall be expecting it. I have the problem that I need your help on; I have designed and have been simulating a low pass filter, the validations were checked to be good but after analysis i got thi error message " [error] Port refinement, process hf3d error: Port 1 is assigned to an internal face. Only allowed with lumped ports.. (6:55:53 PM Dec 11, 2017) [error] Simulation completed with execution error on server: Local Machine. (6:55:53 PM Dec 11, 2017)" Can you suggest the best way to solve this problem? I know you are busy but any help will be most appreciated. This part of my PhD work. Thank you.
One of my students encountered the same error. I found that a lumped port of his design was touching more than two conductor parts. So, there may be some similar silly mistake in your design. Observe thoroughly and you will find.
Good tutorial, but this antenna is not resonating at 2.4Ghz instead it is resonating at 3.7Ghz, Since -10 dB is considered standard value of return loss(S11).
After some numerous modification of L and W I discovered that : for 28mm/46mm I get 2.42Gh S11 as -23.06 and this is the max.. the next resonating fr is at 3.02 and -16db
Hi sir, I appreciate your video, and this is very useful for me, thank you., But I am stuck in a problem. I tried a lot in designing metamaterial antenna, and want to obtain some desired results. But after so many attempts, I am no where. I designed atleast 35 metamaterials antenna, but not able to understand what dimensions I chose, so that required results are obtain. Please help.
This is good..but i want 2*2 microstrip patch antenna in 4 different relative axis.here you are doing it with respect to one axis..could you please make a video of that? it will be very helpful if you do so.
Sir when i am assigning the excitation port as lumped port . It gives an error saying "all faces selected to form a port must lie on the same plane". How should i resolve it?
In the video, you must have seen that I always enter the coordinates (or any dimensions) using the keyboard. If you are just using your mouse to draw the structures, sometimes it may happen that one or two points are not properly aligned. Even a minute misalignment may lead to error. Please check the coordinates and positions of each component of your antenna and make sure that everything is in the same plane.
this antenna doesn't work at 2.4 Ghz due to -10dB criteria. As far as I know you have to take those frecuencies which are under -10dB and 2.4 Ghz is above -10dB
There is no direct answer to this question. You have to adjust the dimensions a bit. Sometimes we need to use inset feeding to lower the S11 parameter. You will find some online tools or mathematical equations to calculate the dimensions but they usually give an approximate result only. You must adjust the parameters and run multiple simulations to get the most expected result.
you should add gaps near feed point to fine tune the resonant frequency or tweak the ground plane as the first resonant frequency is near 3.7GHz with a return loss of -14dB and not at 2.4GHz frequency. Also you are having one more resonant frequency near 4.6GHz which is having a return loss of -10dB so this is no way working at specified 2.4GHz frequency as the return loss is higher than -10dB
This is just a preliminary tutorial to teach our students how to create a basic antenna using HFSS. The techniques you are saying were covered during the live classes.
@@helpbeingengineer4726 always make videos which point to the title, now if u r making video like an amateur and telling me u teach this is total non sense and nobody will believe. at least and first ill never coz im an electrinics design and development professional indulged 24x7 in these kind of a activities for my clients like dlink, wipro, hitachi etc. etc.
No. This was an introductory video on how to design a microstrip antennas using HFSS. You need to match the impedance using some other method such as inset feeding.
@@helpbeingengineer4726 thank you sir! It was my doubt.. & now it cleared but I have some other questions... is it necessary that, a gap between substrate & ground plane, & substrate & feed line to be present there in order to design that antenna? I meant we can directly put ground, substrate & patch by avoiding those copper materials gap?
@swetapadmapanda6349 in simulator, you can do anything. But you must keep it in mind that those antennas are to be fabricated, and the measurement results should match simulation results. That's why you have to keep the gaps as close as possible to the specifications of the PCB boards you have purchased.
Hello Sir, when I am doing simulation, the error is showing taht, Port refinement, process hf3d error: Terminal Rectangle2_T2 on port p1 contains a non-conducting edge. The terminal may need to be assigned manually. Please suggest me how to remove this error.
The plane you assign for making the lumped must touch the ground plane and the feed line. If they are not properly connected this error may occur. The arrow line that you draw to define the lumped port must be withing that plane.
This is good..but i want 2*2 microstrip patch antenna in 4 different relative axis.here you are doing it with respect to one axis..could you please make a video of that? it will be very helpful if you do so.
Hello everyone. I created this video to teach antenna design to some of my students and juniors. Just for convenience, I uploaded it on the channel. Thank you for all your love and support for this video. I am no longer working in the field and I am unable to help you in troubleshooting or clearing your doubts. There are many other online resources on Ansys HFSS (or Ansys Electronic Desktop, as it is called now). I hope that you will get a better response from those guys who are currently working on antenna design.
Your videos are informative and very helpful. Thanks, Dr. Kyle!
Your videos are well done and super helpful. Thanks Dr. Kyle!
Best video for beginners and for scholars... Thanx sir...
Thanks, really good crisp video.
Thank you so much for giving your wonderful work. Really it is so good. I am impressed with your your work brother. May Almighty Allah bless you.
Thank you.
HelpBeingEngineer dot info
Could you give me a video of rectenna design by HFSS.
A rectenna is a combination of a rectifier and an antenna. To make a rectifier you need diodes which cannot be simulated using HFSS. You can perform the simulation in Ansoft Designer + Ansoft HFSS. You have to design the antenna separately in HFSS and the circuit parts separately in Ansoft Designer. There is some provision for importing the antenna from HFSS to Designer. I have never done it myself but I found some resources which tells about such designs. I don't have Ansoft Designer. It comes with the Ansys Electromagnetic suite 2014 and higher versions. It is difficult to get a crack of it..
Thank you so much..... It was so easy for understanding...
This is good. Being beginer I found it very useful for antenna designing. Could you please Make video for *aperture coupled microstrip patch antenna*
Thank you
Thank you. This tutorial is only for showing how to make a rectangular patch in HFSS and see the results. Inset feeding is needed to match the impedance and bring the S11 parameter below - 10 dB at 2.4 GHz. 3.7 GHz is the 2nd order resonant frequency. It will radiate in X or Y direction. In a rectangular patch antenna, we only see the first order resonant frequency (dominant mode of the cavity model).
wao very interesting, thanks a lot
Very Nice work I really enjoyed it. can you do something on step impedance filters. Can you also make them a little longer because this is a very interesting topic and package to use.
Thank you, Idris Musa. I basically work on antenna design. My next videos will contain inset feeding, antennas with variable dimensions, and the optimetrics tool of HFSS. After that I will try to make some videos on step impedance filters.
Thank you for that, I shall be expecting it. I have the problem that I need your help on; I have designed and have been simulating a low pass filter, the validations were checked to be good but after analysis i got thi error message " [error] Port refinement, process hf3d error: Port 1 is assigned to an internal face. Only allowed with lumped ports.. (6:55:53 PM Dec 11, 2017)
[error] Simulation completed with execution error on server: Local Machine. (6:55:53 PM Dec 11, 2017)" Can you suggest the best way to solve this problem? I know you are busy but any help will be most appreciated. This part of my PhD work. Thank you.
One of my students encountered the same error. I found that a lumped port of his design was touching more than two conductor parts. So, there may be some similar silly mistake in your design. Observe thoroughly and you will find.
Thank you, the problem has been solved after careful checking of the design.
Nice. It will be helpful for beginners
Thank you :)
hello sir, im following al your steps but cant unite the feed and patch. what to now sir?
plz help me in my mtech project
Good tutorial, but this antenna is not resonating at 2.4Ghz instead it is resonating at 3.7Ghz, Since -10 dB is considered standard value of return loss(S11).
I think if we increase the data points its get to -12.5 at 2.4
I could not paste screen shot here
however 3.7G I have -20
After some numerous modification of L and W I discovered that : for 28mm/46mm I get 2.42Gh S11 as -23.06 and this is the max.. the next resonating fr is at 3.02 and -16db
Plz provide videos to do circular polarization to microstrip antenna
Hi sir, I appreciate your video, and this is very useful for me, thank you., But I am stuck in a problem. I tried a lot in designing metamaterial antenna, and want to obtain some desired results. But after so many attempts, I am no where. I designed atleast 35 metamaterials antenna, but not able to understand what dimensions I chose, so that required results are obtain. Please help.
This is good..but i want 2*2 microstrip patch antenna in 4 different relative axis.here you are doing it with respect to one axis..could you please make a video of that? it will be very helpful if you do so.
I tried doing the microstrip antenna at 2 GHz frequency
the patch is very big with L=52.21 mm and W=61 mm but for the substrate I used 30 mm
Sir when i am assigning the excitation port as lumped port . It gives an error saying "all faces selected to form a port must lie on the same plane".
How should i resolve it?
In the video, you must have seen that I always enter the coordinates (or any dimensions) using the keyboard. If you are just using your mouse to draw the structures, sometimes it may happen that one or two points are not properly aligned. Even a minute misalignment may lead to error.
Please check the coordinates and positions of each component of your antenna and make sure that everything is in the same plane.
for the thickness of the transmission line i have zero-line thickness, so what should I put for the dimension
this antenna doesn't work at 2.4 Ghz due to -10dB criteria. As far as I know you have to take those frecuencies which are under -10dB and 2.4 Ghz is above -10dB
You are right.
thanq soo much sir
Sir,while assigning lumped port its not coming as it is,instead its asking for a reference like patch,subtrate or ground.what should i do?
Change your solution type to modal..
it's not for 2.4 GHz cause u've to take into consideration the impedance while calculating the antennas dimensions!
it is not clear how you put for position of T.L. -30,-1,0
the -1 I cannot figure out how you did it
I have encountered serious issues with the T.L layer
How to get even/odd mode S-parameter by exciting even and odd mode for coupled line coupler in HFSS...
Is the 2nd part come out ?
I am sorry to say, but I could not make the second part of this video.
Please how do you get it to resonate at 2.4Ghz
There is no direct answer to this question. You have to adjust the dimensions a bit. Sometimes we need to use inset feeding to lower the S11 parameter.
You will find some online tools or mathematical equations to calculate the dimensions but they usually give an approximate result only. You must adjust the parameters and run multiple simulations to get the most expected result.
you should add gaps near feed point to fine tune the resonant frequency or tweak the ground plane as the first resonant frequency is near 3.7GHz with a return loss of -14dB and not at 2.4GHz frequency. Also you are having one more resonant frequency near 4.6GHz which is having a return loss of -10dB so this is no way working at specified 2.4GHz frequency as the return loss is higher than -10dB
This is just a preliminary tutorial to teach our students how to create a basic antenna using HFSS. The techniques you are saying were covered during the live classes.
@@helpbeingengineer4726 dont u think its incorrect teaching, coz i used to teach electronics and never done like this.
@@raghav1502 you can't judge a 10 days course by a 19 min video.
@@helpbeingengineer4726 well it depends on how u teach coz i judged it
@@helpbeingengineer4726 always make videos which point to the title, now if u r making video like an amateur and telling me u teach this is total non sense and nobody will believe. at least and first ill never coz im an electrinics design and development professional indulged 24x7 in these kind of a activities for my clients like dlink, wipro, hitachi etc. etc.
What about the impedance matching? Is it matching with the patch? Please reply
No. This was an introductory video on how to design a microstrip antennas using HFSS. You need to match the impedance using some other method such as inset feeding.
@@helpbeingengineer4726 thank you sir! It was my doubt.. & now it cleared but I have some other questions... is it necessary that, a gap between substrate & ground plane, & substrate & feed line to be present there in order to design that antenna? I meant we can directly put ground, substrate & patch by avoiding those copper materials gap?
@swetapadmapanda6349 in simulator, you can do anything. But you must keep it in mind that those antennas are to be fabricated, and the measurement results should match simulation results. That's why you have to keep the gaps as close as possible to the specifications of the PCB boards you have purchased.
@@helpbeingengineer4726 ohh now I understood thanks a lot sir🙏
Hello Sir, when I am doing simulation, the error is showing taht, Port refinement, process hf3d error: Terminal Rectangle2_T2 on port p1 contains a non-conducting edge. The terminal may need to be assigned manually. Please suggest me how to remove this error.
The plane you assign for making the lumped must touch the ground plane and the feed line. If they are not properly connected this error may occur.
The arrow line that you draw to define the lumped port must be withing that plane.
I need the dielectric resonator antenna design video with all the parameters mention
very interesting step by step....kindly upload how to cut slotts in patch, ground and please give your email id for my research support
hello sir very nice video.i did simulation according to ur video while running it is giving error
Can you share a screenshot of the error message?
Help Being Engineer please how do we get it to resonate at 2.4Ghz and for it to go less than -10dB please
@@lukman__ ; you can go to 12.5 .. I did get it .. but it was at 2.35GH.. I'm trying out .. will see if I can get close
Please update the requested design video
Sir, can you please provide me with the pdf ?
Sir please send link for cracked version of hfss 13
This is good..but i want 2*2 microstrip patch antenna in 4 different relative axis.here you are doing it with respect to one axis..could you please make a video of that? it will be very helpful if you do so.