Cadence Virtuoso is a Design Framework.TLINE in virtuoso has delay time.
If you mean Spectre Primitive, "tline", it is derived from SPICE which is oriented for signal delay originally.I know there are mathematical relations among these parameters
but I am confused why they are not consistent.
Someone please clarify.
Ideal T-element Transmission Lines
Syntax
General form:
Txxx in refin out refout Z0=val TD=val [L=val]
+ [IC=v1,i1,v2,i2]
Txxx in refin out refout Z0=val F=val [NL=val]
+ [IC=v1,i1,v2,i2]
I am using spectre simulator but mostly I never used HSPICE syntax or something, I only use GUI.What simulator do you use from Cadence Virtuoso ?
What do you want to mean ?I only use GUI.
Surely see "spectre -h tline".So I am stuck on how to solve it using smitch chart utility in ADS
to find those line length and implement the schematic in Virtuoso.
Let's take 1 GHz.Fisrt of all, what is your operating frequency ?
His purposes are satisfied if he set z0, f and nl instead of z0 and td for Spectre Primitive, “tline”.You didn't yet clarify where you see inconsistency of different parameters
I know there are mathematical relations among these parameters but I am confused why they are not consistent.
It's based on users needs. ADS users are usually RF designers, so they don't think in terms of delay time. That's why ADS ideal line models are based on phase delay at a given frequency.
His purposes are satisfied if he set z0, f and nl instead of z0 and td for Spectre Primitive, “tline”.
Physical length is not required at all in Spectre Primitive, "tline".This makes sense,
So I always need to convert from electrical length (EL, found in smith chart utility) to physical length(EL*lambda/360)
Yes.is this normalized electrical length equal to electrical length ( in terms lambda)/ lambda ?
Spectre Primitive, "tline" does not have this.2.Electrical length (in terms of angle)
circuitking mentioned ADS TLIN model, which of course has electrical length parameter
1.Electrical length (in terms of lambda)
3.Physical length
ADS TLIN model does not have the followings.
MDS which was one of ancestor of ADS was frequency domain simulator originally.That is how ADS is designed:
it uses different line models for electrical and physical parameters: TLIN and TLINP.
Still completely wrong.This time I got 15.22+j30.48.
No.For example, If it is a short stub, I should connect X and Y (In the figure) correct?
Still completely wrong.
Surely consider relation between TLIN and TLIN4 of ADSsim.
TLIN is only for single-ended.I don't even know why there are TLIN and TLIN4 and their purposes.
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