Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

HFSS Eigenmode simulation problem

Status
Not open for further replies.

zhul3

Member level 5
Joined
Feb 11, 2008
Messages
90
Helped
7
Reputation
14
Reaction score
3
Trophy points
1,288
Location
canada
Activity points
1,855
HI

I am trying to simulate the eigenmode of a cylinder cavity, but everytime I hit the running, the process bar just gets stuck while doing "Lambda refinement" and never go forward.

I attached the model (HFSS-V12) here, can somebody tell me how to solve this issue?

THanks.

 

Attachments

  • Project1.7z
    29.1 KB · Views: 23

tallface65

Full Member level 6
Joined
Dec 8, 2009
Messages
345
Helped
190
Reputation
394
Reaction score
173
Trophy points
1,323
Location
land of the free
Activity points
3,407
It sounds like you either have 1) a very electrically large problem at the minimum frequency, 2) Have a very high permittivity, or 3) both. Also, check the units of your minimum frequency and the units in your drawing that everything is correct.

have fun :)
 
Last edited:
  • Like
Reactions: zhul3

    zhul3

    Points: 2
    Helpful Answer Positive Rating

zhul3

Member level 5
Joined
Feb 11, 2008
Messages
90
Helped
7
Reputation
14
Reaction score
3
Trophy points
1,288
Location
canada
Activity points
1,855
You are right, units problem.

Appreciate!!
 

vikkycoolboy

Newbie level 1
Joined
Sep 28, 2010
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,290
Hi Everyone
I am new to HFSS and using HFSS v12 to simulate a UWB monopole rugby antenna as a part of my project.
I designed the antenna using CAD and imported the IGES file to setup the antenna for EIGENMODE analysis
but I am also experiencing problem of similar kind,wherein the simulation is stuck on lambda refinement.
I tried a few things but it did not work out. I even tried drawing the antenna in HFSS but still the simulation
hanged up to that place and would not move on.I read the above posts saying that it is somewhat a case of units
or a case of electrically large problem. but my antenna dimensions including ground plane and reflector do not exceed 150 mm in any direction and
i am trying to get the 10 Eigenmodes above 3 Ghz. Can somebody help me regarding the modifications that can be done on order
to get my results.
Any help will be appreciated

REGARDS!!
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top