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System Simulator >
System Component Models >
Microstrip >
MS Ring Coupler (MSCOUPR)

MS Ring Coupler (MSCOUPR)

Properties	Description	Units	Default	Range
W1	Width of line connected to node n1, node n4	m	Required	> 0
W2	Width of line connected to node n2, node n3	m	Required	> 0
W3	Width of line between nodes n1 and n4	m	Required	> 0
W4	Width of line between nodes n1, n2; Width of line between and n3 , n4	m	Required	> 0
W5	Width of line between nodes n2 and n3	m	Required	> 0
L1	Length along center line of W4	m	Required	> 0
L2	Half length along center line of W3	m	Required	> 0
L3	Half length along center line of W5	m	L2	> 0
sub	Substrate name	none	Required	string
CoSimulator	Simulation engine	none		Planar EM
CoSimStackup	Stackup used for simulation	none	Layout Stackup	Layout Stackup, Footprint stackup, Substrate

Notes

Netlist Form

MSCOUPR:NAME n1 n2 n3 n4 W1=val W2=val W3=val W4=val W5=val L1=val L2=val [L3=val] SUB=label

Netlist Example

MSCOUPR:COUPLER 1 2 3 4 W1=0.0606cm W2=0.0606cm W3=0.0263cm W4=0.0263cm W5=0.0263cm L1=0.591cm L2=0.295cm L3=0.886cm SUB=sub1

where sub1 needs to be defined in the corresponding .sub statement.

References

1. R. Mehran, “CAD of Microstrip Filters considering dispersion loss and discontinuity effects,” IEEE Trans. MTT-27, Mar. 1979, pp. 239-245.

2. R. Mehran, “A method of analysis and design of microstrip directional couplers considering dispersion and discontinuity effects,” Proc. of the 1970 Informational Symposium on Computer-Aided Design of the Electrics for Space Application, Bologna (Italy) 1979, pp. 7A.

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