A spiral-shaped defected ground structure for coplanar waveguide

The authors present a spiral-shaped defected ground structure for coplanar waveguides (DGSCPW), which can be used as a kind of periodic structure for a planar transmission line. The proposed spiral-DGSCPW adopts spiral-shaped defects on both ground planes of CPW. Due to the spiral-shaped defects, th...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2002-09, Vol.12 (9), p.330-332
Main Authors: LIM, Jong-Sik, KIM, Chul-Soo, LEE, Young-Taek, AHN, Dal, NAM, Sangwook
Format: Article
Language:English
Subjects:
Analytical models
Applied sciences
Circuit properties
Circuit simulation
Coplanar waveguides
Defects
Electric, optical and optoelectronic circuits
Electronics
Equivalence
Equivalent circuits
Exact sciences and technology
Ground plane
Grounds
Inductance
Integrated optics. Optical fibers and wave guides
Microwaves
Optical and optoelectronic circuits
Performance analysis
Performance evaluation
Periodic structures
Planar transmission lines
Planar waveguides
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Summary:The authors present a spiral-shaped defected ground structure for coplanar waveguides (DGSCPW), which can be used as a kind of periodic structure for a planar transmission line. The proposed spiral-DGSCPW adopts spiral-shaped defects on both ground planes of CPW. Due to the spiral-shaped defects, the equivalent shunt inductance and slow-wave effects increase more rapidly than the standard CPW or CPW lines combined with the conventional PBG. The modeling and analysis to extract the equivalent circuit, increased slow-wave factor, and simulated and measured performances are presented.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2002.803208