15 Threads found on edaboard.com: Stub Hfss
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
RF, Microwave, Antennas and Optics :: 11-02-2014 09:52 :: biff44 :: Replies: 1 :: Views: 592
I'm using hfss...how 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:
Electromagnetic Design and Simulation :: 04-19-2014 04:04 :: bruteece :: Replies: 0 :: Views: 270
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.....
RF, Microwave, Antennas and Optics :: 11-20-2013 09:30 :: prachi gupta :: Replies: 1 :: Views: 313
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 (...)
Electromagnetic Design and Simulation :: 10-31-2012 15:10 :: abidethedude :: Replies: 1 :: Views: 574
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.
RF, Microwave, Antennas and Optics :: 06-09-2012 08:37 :: SunnySkyguy :: Replies: 4 :: Views: 933
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...
RF, Microwave, Antennas and Optics :: 04-26-2012 11:58 :: mudassar-nauman :: Replies: 0 :: Views: 412
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...
Electromagnetic Design and Simulation :: 04-26-2012 09:50 :: mudassar-nauman :: Replies: 0 :: Views: 459
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
RF, Microwave, Antennas and Optics :: 01-29-2012 19:11 :: m.kelley :: Replies: 6 :: Views: 2425
I have problem with microstrip delta stub design.
I referenced some paper about radial stub, ... but can't find exact program for calculation, even wrote some maltlab m-file for it.But my results are different from others done by some author.
Specially, in the paper "A NEW KIND OF RADIAL stub AND SCME APPLICATIONS"-attached (...)
RF, Microwave, Antennas and Optics :: 03-29-2011 11:25 :: thaithien :: Replies: 5 :: Views: 923
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 (...)
Electromagnetic Design and Simulation :: 01-24-2011 14:32 :: mequitnever :: Replies: 2 :: Views: 1655
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
Electromagnetic Design and Simulation :: 08-29-2010 00:19 :: mprathap :: Replies: 7 :: Views: 2075
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????
RF, Microwave, Antennas and Optics :: 05-14-2009 02:18 :: adesiregar_ps :: Replies: 0 :: Views: 647
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
RF, Microwave, Antennas and Optics :: 03-18-2009 22:01 :: lwking412 :: Replies: 1 :: Views: 725
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
Electromagnetic Design and Simulation :: 08-02-2008 18:29 :: 3HzT :: Replies: 0 :: Views: 1332
can you send the structure, may be you have made a mistake in implementing the stubs
Electromagnetic Design and Simulation :: 03-18-2006 11:49 :: adel_48 :: Replies: 2 :: Views: 777