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39 Threads found on Hfss Coaxial Line
How to connect feed line of an antenna to a point source excitation in hfss? Thanking you.
Hello, I am using hfss V13,and simulating a Planer Inverted F antenna with coaxial feed line.Validation check is successful.But no result found in s11 plot.I attached the view of design.Anyone can help me please?
How to make coaxial probe for horn antenna in feko. In feko example of horn with line feed i changed parameters and have achieved my desired results now i want to place probe like in hfss Microstrip patch antenna but i have no infinite ground in case of horn. Kindly mention steps and tell me how to know what will be inner and outer diameter (...)
Dear Sahu here you go
Hello, I have a coaxial line of length L. run it at frequency f. No dielectric just one PEC cylinder in a vacuum cylinder. Defined waveguide ports. since this is a TEM mode, I would expect the s21 phase to be 2*pi*L/wl. It's not! What am I missing? Thanks
how to design the same in hfss
100140Hi everyone, I have a problem with my design. I don't know how to insert the SMA connector to the horn antennas. Could you give me some ideas about that? + What solution type should I choose (Driven modal or Terminal) ? + The excitation is lumped port or wave port ? + My antennas material is FR4, so what is the
Hi, Have a look at this website : In hfss, you can draw a 50 ohms coaxial line to feed this antenna. Look at the hfss tutorial : there is one example that deal with a rectangular patch antenna feed by a coaxial line. A PIFA antenna will not be difficult to draw on hfss.
could you plz try it :( i tried every thing i swear and still can't get S- Parameter I opened your file and tried applying a lumped port, but it seems my skills are still rusty on hfss. But if you can upload your file using CST I'd be more than glad to help out. Hope there's someone here with better hfss ski
My hfss version is old and I cant open your file properly. But I think that you don't add boundary condition to outer conductor of coaxial line.
hi,all i'm trying simulate periodic structure in Collin's book " foundations for microwave engineering" chapter 8 page 552 ( capacitively loading of coaxial line),by hfss, I want define Master and Slave and Floquet port, but i don't know how consider master and floquet? i will be great full if any suggest.
Hey peeps, Trying to do this has consumed so much of my time. Can anyone explain to me how best to feed a slot antenna with a coaxial transmission line, and how to investigate the correctness of the design. Thanks in advance
hello everyone, I'm new to hfss, and this is my first project. I have to simulate the radiation pattern of the LPDA antenna at 670MHz (E and H-Plane). My problem is that I can't get the same results as i got with 4NEC2 and EZNEC. I have uploaded my project and the 4NEC2 results. So if anyone with experience in this area could maybe check the pr
I set a PML boundary on the coaxial line and sweep its "height" to achieve a desirable Loaded Q. You don't need to set a PML boundary for coaxial. The easy way is to define Impedanace Boundary (Resistance: 377 Ohm, Reactance : 0) My question is, what do these "Eigen Qs" mean? Unloaded Q or Loaded Q? [/quo
Hi all, I am a beginner with hfss. I have its verson 10. Now, I try to design a printed dipole antenna using hfss. The project have been design alreadly but it seems that there maybe some problems. As can be seen from the S-parameter result figure in this project, the antenna in the project works at quite different frequency (around 5GHz) than t
I need to to drive a patch with coax probe. I want to know how to calculate coax outer diameter and inner conductor diameter.? Is there any relation with frequency? Irfan
I have a problem in designing PIFA, I don't know how to feed the antenna in IEEE paper said " A 50 ohmi coaxial line is used to feed the antenna. Specifically,two folded feed lines are placed between the radiator patch and the feed point". I specified that the feed point it's at the second line(Patch_9 in design) .The (...)
Am a new member in this forum.... also am new to hfss... How to feed microstrip dipole antenna? What kind of feed is to be used? coaxial or wave port or lumped port? and also please tell me how to give the feed? Plz help me in this....
Hello! Can anybody explain the meaning of "cap" in the hfss SMA model on p.16 and p.23? For what is it? Tnx
i am using hfss 9 and this might be a lot similar to 11. first make a circle that covers the coax input. i usually set this to be somewhat transparent as i find it easier to see the line i defined for my waveport later on. please make sure that your solution is in driven terminal as well. after making the circle, right click on it, assign e
come on. if you have already simulated rectangular patch in hfss, then what is the problem, i think in this forum you should discuss problem which means that you should at least try by yourself first and then ask for any problem. For reference as to what should be the dimensions and all, please refer to Balanis Chapter-14 on microstrip patch anten
Hello, I need to design a L-probe fed p.a.t.c.h antenna. I tried to follow the help but it was not so helpful. Could anyone tell me how to draw the L-shaped probe in hfss.
I am new to hfss software, I would like to simulate the electrical properties such as characteristic impedance vs. frequency of a novel grounded CPW structure embedded in a 50 ohm coaxial line. Could someone give me suggestions about how to start? Thanks a lot! Jim
For the transition between coaxial line and waveguide, the coaxial line should be about quarter-wavelength away from the short end of waveguide. In hfss model, two waveports should be set in the end of coaxial line and the open end of waveguide.
well i'm not sure but i did somthin similar with microstrip simulation on hfss add a plane at the input of the line touching the inner and outer conductors the assign this plane as a wave port the in tegration line is the center line of the pale ( the plane is a XY plane if the propagation direction is Z )
i want to design three layers electromagnetically coupled patch antenna Using the coaxial feed line as feed line can anybody help me
Hallo, the direct generalized scattering paramter results for a microstrip discontinuity show return loss of approx. -20dB at DC. With increasing frequency it reaches -5dB at 30 GHz. After deembedding the feeding lines and renormalization it shows -60dB at DC and -20dB at 30 GHz. I would prefer to show the unnormalized S-Matrix as a result, b
I did a simple calculation of radiation from slotted coaxial line about half a year ago. See attached hfss project...
You can simply connect the coax shield to one plate and the center pin to the other plate. Then assign a wave port on end of the coax line. Or you can use a lumped gap source in hfss by drawing a rectangle between the two plates. Then you would need to assign it the impedance value. Keep in mind that since the TEM horn is a balanced antenna and
In hfss, one solid (3D) object cannot intersect another or it will produce a Boolean error. You should subtract one object from the other. So in your case, you can subtract the coax pin from the substrate that is below the upper p_atch. That should fix the error. Seeding the mesh means adding more vertices (nodes) before the adaptive mesher begi
I don't have access to OTS. If someone does, may I ask a big big favor: Please ask them how do I start an analysis (analyze) only with unix command-line. Basically, I'd like to telnet to a unix box and write something like this: hfss -batchsolve my_antenna.hfss (I've tried -batchsolve and -iconic with Unix hfss9.x and (...)
Dear Sir/Madam, Let me know how to draw coaxial feeding line in hfss and IE3D? I am designing a microstrip patch with coaxial feeding for my project. How to do the matching in such case? Please share your expert comments. Sincerely, Hiru Added after 5 minutes: Dear Sir/Madam, I am designing a mic
I think this UHF Probe Design Procedure can help You: If I find an example about Balun I will post here.
Hello~. I want to know peak power in coaxial line or waveguide by mws or hfss. Please, let me know. Thank you. Hello.. simulate electric field distribution in your waveguide and find maximum value (usually near the transition). You can calculate (better to say estimate) maximum power then from breakdown of air (
Hello everybody! Does anyone experience to make coaxial cable model (not straight line model. It must be curved line) by using hfss? If someone has make it can you explain a little bit how you was make it and what materials you was use in this model.
Extend your feeding line (I suppose coaxial line or microstrip line) to the radiation boundary. Make port at same position as radiation boundary and design feeding line to be at least λ/4 far from structure.. From what you wrote I suppose you're using hfss.. However in MWS you don't (...)
Hy: I'm simulating a coaxial to waveguide transition, and the result (parameters S11 and S21) depends on length of the integration line (using lumped ports). Why?, can somebody sends me a tutorial about lumped port or excitacions in hfss in general? My mail is: Thanks and regards.
Hi all! I'm a beginner in hfss. The first thing I'm trying to do is simulate a simple monopole Lambda/4 antenna with an infinite ground plane. I have a problem with this, I'll resume what I've done: - I've drawed a 2D plane, and then substracted a circle. - Then, I've drawed a coaxial line. The outer cylinder has the same dimensions (...)
Let's say you draw a z-directed coaxial line from z=0 to z=10, the ground plane of the p_atch antenna is at z=10, the p_atch is at z=11. You would have drawn three cylinders along the z-axis: 1) one is with the radius of a the center conductor of the coaxial line, extend from z=0 to z=10, and it will be assigned the material (...)