Wire-bond free technique for right-angle coplanar waveguide bend structures

Hosaeng Kim; Rhonda R Franklin

doi:10.1109/TMTT.2008.2011207

Wire-bond free technique for right-angle coplanar waveguide bend structures

Hosaeng Kim, Rhonda R Franklin

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

This paper presents a new wire-bond free technique for suppressing slot-line mode excitation in coplanar waveguides (CPWs) bends. The suppression of slot-line mode is obtained by applying a slow wave structure to the shorter slot of the right-angle bend. The structure is modified into a circular-shaped bend where the slow wave compensation is then used to equalize the electrical length of the inner and outer slots. The insertion loss of the modified CPW bend with slow wave structure is evaluated on a silicon substrate and is similar to straight CPW lines with return loss (S₁₁) values below 20 dB over a 50-GHz bandwidth.

Original language	English (US)
Article number	4752856
Pages (from-to)	442-448
Number of pages	7
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	57
Issue number	2
DOIs	https://doi.org/10.1109/TMTT.2008.2011207
State	Published - Feb 2009

Keywords

Coplanar waveguides (CPWs)
Slow wave structures
Waveguide discontinuities

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10.1109/TMTT.2008.2011207

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abstract = "This paper presents a new wire-bond free technique for suppressing slot-line mode excitation in coplanar waveguides (CPWs) bends. The suppression of slot-line mode is obtained by applying a slow wave structure to the shorter slot of the right-angle bend. The structure is modified into a circular-shaped bend where the slow wave compensation is then used to equalize the electrical length of the inner and outer slots. The insertion loss of the modified CPW bend with slow wave structure is evaluated on a silicon substrate and is similar to straight CPW lines with return loss (S11) values below 20 dB over a 50-GHz bandwidth.",

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AB - This paper presents a new wire-bond free technique for suppressing slot-line mode excitation in coplanar waveguides (CPWs) bends. The suppression of slot-line mode is obtained by applying a slow wave structure to the shorter slot of the right-angle bend. The structure is modified into a circular-shaped bend where the slow wave compensation is then used to equalize the electrical length of the inner and outer slots. The insertion loss of the modified CPW bend with slow wave structure is evaluated on a silicon substrate and is similar to straight CPW lines with return loss (S11) values below 20 dB over a 50-GHz bandwidth.

KW - Coplanar waveguides (CPWs)

KW - Slow wave structures

KW - Waveguide discontinuities

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ER -

Wire-bond free technique for right-angle coplanar waveguide bend structures

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