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Stripline >
SL Coupled Lines (SLMCPLn, where n is the number of lines)

SL Coupled Lines (SLMCPLn, where n is the number of lines)

Schematic Symbol Example

(n = 8, SLMCPL8)

Properties	Description	Units	Default	Range
NL	Number of lines	none	Required	[1,20]
W1	Width of line 1	m	Required	> 0
W2 ¼Wm	Widths of line 2 through line NL. Line widths must be numbered consecutively.	m	0.0	³ 0
S1, S2…Sm-1	Line spacing, where Si is the spacing between line i and line i+1, i<NL.	m	0.0	³ 0
S0	Spacing from the left enclosure wall to the first line	m	NL=1: 50´W1 NL>1: 50´ (Wmax+Smax)	³ 0
Sn	Spacing from right enclosure wall to the NLth line.	m	NL=1: 50´W1 NL>1: 30´ (Wmax+Smax)	³0
P	Physical length of the lines	m	Required
Discretization	Discretization type (equidistant or non-equidistant)	none	NonUniform	[Uniform, NonUniform]
Density	Density of discretization	none	0	³0
Type	Wall type	none	EE	[EE, ME, EM, MM]
label	Substrate name	none	Required	string

Notes

1. Only the quasi-static formulation is available.

2. The numbering of the line widths and spacings must be consecutive, e.g., “MCPL 1 2 3 4… W1=val S1=val W3=val SUB ...” is not allowed because W2 and S2 are missing.

3. The left and right wall types include EE (electric-electric,) ME (magnetic-electric,) EM (electric-magnetic,) and MM (magnetic-magnetic).

4. The default value for S0 and/or SN is 5x(1/2B), where B is the ground planes spacing of the stripline.

5. If the Density parameter is not set, or is set to zero, a value for Density is calculated based on the structure. For example, a higher density (uniform or non-uniform) is required for smaller metal or separation widths.

Netlist Form

SLMCPL:NAME n1 n2 [ n3 ] [ n4 ] … [ n40 ]
+ NL=val W1=val [S1=val] [W2=val] [S2=val] [W3=val] [S3=val]
+ [W4=val] … [S0=val] [SN=val] P=val
+ [DISCRETIZATION=val] [DENSITY=val] [TYPE=val] sub=label

Netlist Example (10 coupled striplines)

SLMCPL:MCPL1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
+ NL=10 W1=0.3MM S1=0.3MM W2=0.3MM S2=0.15MM W3=0.2MM S3=0.4MM
+ W4=0.3MM S4=0.2MM W5=0.1MM S5=0.1MM W6=0.2MM S6=0.15MM
+ W7=0.8MM S7=0.3MM W8=0.1MM S8=0.1MM W9=0.5MM S9=0.5MM
+ W10=0.5MM P=20MM S0=10MM SN=5MM SUB=SUB1

where SUB1 needs to be defined in the corresponding .SUB statement.

References

HFSS视频教程 ADS视频教程 CST视频教程 Ansoft Designer 中文教程


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