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mathmatica
Hi,
I try to learn some software for mathematic function, I try to understand diffetent in these software...n I still doubt and confuse...
I like to be able to do some calclulus, plotting, and some basic 3D fucntion
So, which is the one I need?
Can anyone tell me?
Thanks for the...
Re: RF discuss
Hi all,
I am a manufacturing engineer.
Currently, I am looking for any information on the coax to microstrip transition.
Pls let me know if you have information here.
my email: camel_1213@hotmail.com
principles of tdr +pdf
Hi,
Allow me to share my comment here.
Guess by now you should have some understanding on theTDR.
By learning the TDR measurement, it is very useful to identify the bad location and discontinueties.
SOMEHOW, I have learned that not much theory/comments on the correction...
HFSS waveport
Hi,
I am currently start to explore the HFSS v9.2.
Before that, I have learned that there are wave and lumped port for the simulation.
My question is if I would like to simulate a structure (assuming it a retangular model), it is always a "must" that I need to draw a 2-D...
Hi
I am confuse about the TEM and Quasi TEM mode.
I have read a few comment and some book but still can't get a good understanding.
I need to know the different between these 2 and when will this occur?
I wish someone out that can help me to understand it.
Thanks for your time.
camelRF
Re: I want to learn RFIC
I guess the below are needed:
1. Experience
2. Technical know how
3. Some luck
I am still struggling to do my best.
May if there are any good information.
Do share it here.
Good luck. :D
Re: ADS-MWO-Eagleware
Hi,
Allow me to add my 2-cent comment here:
ADS is very useful for active and passive simulation. It also have 2D RF simualtion - Momentum. I personally feel that this is like the most luxuary class CAD tool. Plus, it is an expenisve tool.
MWO is very useful for passive...
Re: Simulation
I think if you require RF result in
1. S-parameter ---> Advance Design System(ADS) and Microwave office (cheaper)
2. EM Wave pattern + S-parameter ---> 3D simulator: Ansoft HFSS and CST
It seem like you are looking for the SMA cox to microstrip transition then 3D simulator is...
Probably what I am asking is any considerating before go for simulation? Any trick or limitation that I shlould look at and others practical experience to share on this design?
Do I need to consider the width of the microstrip line under right below the connector pin?
And etc...
Re: Impedance in ADS
use the below formula..
Zin_ohm=zin(s(1,1)).
Place in the display equation format...
plot it using rectangular...
Hope this step help..
Hi,
I got this formula that I need some explanation:
Z=Z0*(1-stepResp)/(1+stepResp)
stepReps = TDR Step Response
TDR = Time Domain Reflectometry
Any paper/application note and others related infor is very much appreciated.
Hi,
Can anyone tell me how I can optimize the transition between the coax to microstrip surface?
Any rule of thumb like solder, epoxy amount, shape of connector etc?
I am refering to high frequency usage that use connector like 1mm or 2.4mm.
Thanks in advance
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