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Ultra-wide-band coplanar waveguide based impedance transformer using slow-wave electrodes.

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Title: Ultra-wide-band coplanar waveguide based impedance transformer using slow-wave electrodes.
Author: Yao, Xia; Jaeger, Nicolas A. F.
Issue Date: 2011
Publicly Available in cIRcle 2011-11-22
Publisher Society of Photo-Optical Instrumentation Engineer
Citation: Yao, Xia; Jaeger, Nicolas A. F. Ultra-wide-band coplanar waveguide based impedance transformer using slow-wave electrodes. Photonics North 2011, edited by Raman Kashyap, Michel Têtu, Rafael N. Kleiman. Proceedings of SPIE Volume 8007, 80070G, 2011. http://dx.doi.org/10.1117/12.905674
Abstract: This paper presents a new type of broadband impedance transformer loaded with capacitive fins (ITF) suitable for use in the frequency range 10 GHz to 70 GHz. Compared with conventional, unloaded, tapered impedance transformers, these ITF structures extend the impedance matching range and the operating bandwidth for the same amount of on-chip real-estate. We have designed ITFs capable of impedance matching resistive loads from ~ 10 Ω to ~ 229 Ω, on a 650 μm thick GaAs substrate over about a 60 GHz bandwidth. Design examples are used to demonstrate the flexibility of these ITF structures. Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Affiliation: Electrical and Computer Engineering, Dept of
URI: http://hdl.handle.net/2429/39215
Peer Review Status: Reviewed
Scholarly Level: Faculty

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