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series stub , stub matching , radial stub , open stub
17 Threads found on Stub Hfss
hello is S11 of single stub matching network must equal S22? and is it necessary for both to satisfied matching ? answer for both question is yes. is not must be but it will be!! its because since single stub is unilateral. bilateral devices (transistors and etc) will have S11 not equal to S22. but unilateral S11
I am designing a circular patch antenna with stub. I need to connect stub at angle 112 degree from transmission line feed. how can i rotate at particular angle in hfss. Moving object with certain angle.. second any one please tell me that transmission line feed formulaes for circular patch and any thumb rule for line feed. similar for (...)
hffs is a field solver. a double stub tuner is a circuit element. You are using the wrong program to simulate the double stub tuner. Start off on a linear simulator that uses S parameters and treats transmission lines as black boxes with a length, impedance, and deielectric constant. you are tying to use a pneumatic Jackhammer to drive a tiny t
I'm using shud i add a stub to my patch antenna? shud i add it on the substrate itself? also i'v to use a switch as an interface b/w patch and the stub...what are the matching considerations required? shud i "unite" the patch, switch and stub or not? plzzz help its urgent :sad:
i have designed this model but i dont know how to use stub in hfss as given in the paper.....thats why results are not accurate as i am not using stub in my design.....................can any body help me to come out this problem? thanks in advance.....
Hi guys, I'm new here. Just a quick question: One of my assignment is to simulate an open stub through a transmission line (50ohm) to a load of 155 ohm. I used my smith chart to calculate the distance and length of the stub (in terms of wavelength) but I do not fully understand how to convert those numbers to design a physical (...)
The probe length is generally chosen to be less than the height of the DRA, to avoid probe radiation. YOu might consider a stub on the other side for tuning the antenna. (Added) other side of DRA on same surface.
please help me design stub loaded helix in hfss . i,ve given the link for the geomatry of stub loaded helix please help me to design this in hfss ....thanks... [
Hi, can anybody tell me how i can make stub loaded helical antenna or how i can add stubs in helical antenna in hfss. please help me...
Hello, I am currently building a demo of a microstrip line with a tuning stub. The transmission line is terminated in a load impedance of 100-50j ohms. The microstrip line has a Z0 of 50 ohms, and the stub has a Z0 of 100 ohms. I know my designs for the microstrip lines work, but I am having trouble terminating the transmission line with the fix
Now you can use hfss OR ADS OR AWR to setup the delta stub and can get very good results. Do you mean radial stub or delta stub? I have not seen delta stub in ADS or AWR so far.
Please help me in drawing radial stub using hfss. I have tried arc, polyline etc. But I want to have a radial stub with a thickness, which means it is 3D and not 2D. I need to know how to draw a 3D radial sub in hfss. Radial stub is like a slice of pizza. Please help!! It is urgent!!! Any reply will (...)
Hello All, I am trying to emulate the single stub matching network example given in Pozar's Microwave Engineering using a microstrip realization on a 14mil FR4 (dielectric constant = 4.4) board. The 50ohm thickness works out to be 0.675mm for this board. However I am not getting anywhere close to 50 ohms at the port in my hfss design. I have att
I want to matching bow tie antenna, and to minimize imaginary component i want to use stub, but i don't know how to assign stub in hfss Please help me????
I want to draw the stub Loaded Helix (SLH) in hfss, which offers a substantial size reduction over a conventional axial mode helix without sacrificing performance. I am having problems designing this helical antenna.I draw the structure,but it didn't work ,it have some errors,may be the stucture i have drawed is wrong.I don't understand,because
Hi guys, could anyone share your experience on how to draw/simulate Radial stub in hfss. Because my design is a 3-D stucture (CPW-TO-Microstrip), and i know the RS could be easy simulate just by drag the icon in ADS. But in hfss, I'm newbie. Many thanks.:D:D
hiall, I simulated double stub tuner example in pozar pp267 (2nd edition) for 50GHZ in hfss even for very fine mesh im getting match at 30GHz. I used CPW for simulation kindly help thanx