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Ansoft Designer / Ansys Designer 在线帮助文档：

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Stripline >
   SL Butterfly Radial Stub, Inner Radius Specified (SLRSTBR)       

SL Butterfly Radial Stub, Inner Radius Specified (SLRSTBR)

 

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Properties

Description

Units

Default

Range

A

Aperture angle

degree

Required

(0,180)

RI

Inner radius

m

Required

> 0

RL

Outer radius

m

Required

> 0

W

Width of the feedline

m

Required

> 0

sub

Substrate name

none

Required

string

 

Notes

1. Valid for B/lg << 1, where B is the ground-to-ground distance defined in the corresponding .SUB statement, and lg is the guide wavelength.

2. Inline configurations of the Radial Stub model includes coupling to the main line. Implied SLTEE or SLCROSS junctions are included in this model.

3. The stub is open at the outer radius RL.

4. Conductor and dielectric losses are included if the metallization or the surface resistivity are specified with the substrate data.

Netlist Form

SLRSTBR:NAME n1 n2 A=val RI=val RL=val W=val SUB=label

Netlist Example

SLRSTBR:RSTBR1 1 2 A=130 RI=2UM RL=20UM W=10UM SUB=SUB1

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

References

1. J. P. Vinding, “Radial Line Stubs as Elements in Stripline Circuits,” NEREM Record, 1967, pp. 108-109.

2. Jorgen P. Vinding, “Stripline Electrical Filter Element,” United States Patent Office, number 3, 566, 315, February 23, 1971.

3. F. Gianinni, “CAD-Oriented Lossy Models for Radial Stubs,” IEEE MTT-36, No. 2, Feb. 1988, pp. 305-313.



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