Modeling dispersion and radiation characteristics of conductor-backed CPW with finite ground width

Modeling dispersion and radiation characteristics of conductor-backed CPW with finite ground width

Dispersion and radiation properties of the conductor-backed coplanar waveguide (CPW) with finite ground planes are analyzed and modeled. A frequency-domain finite-difference method using the perfectly matched layer absorbing boundary condition is used as reference. Based on these results, a closed-f...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2003-01, Vol.51 (1), p.137-143
Hauptverfasser: Schnieder, F., Tischler, T., Heinrich, W.
Format: Artikel
Sprache:eng
Schlagworte:
Circuit synthesis
Conductors
Conductors (devices)
Coplanar waveguides
Dielectric substrates
Dispersion
Dispersions
Finite difference method
Finite difference methods
Frequency
Ground plane
Mathematical analysis
Mathematical models
Microwaves
MMICs
Perfectly matched layers
Radiation effects
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Beschreibung
Zusammenfassung:Dispersion and radiation properties of the conductor-backed coplanar waveguide (CPW) with finite ground planes are analyzed and modeled. A frequency-domain finite-difference method using the perfectly matched layer absorbing boundary condition is used as reference. Based on these results, a closed-form description is derived and implemented into an existing quasi-static CPW model. This leads to a comprehensive and efficient CPW description accounting for all relevant effects from conductor loss to high-frequency dispersion. Additionally, design rules to avoid parasitic radiation effects are given.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2002.806926