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

Xia Yao; Nicolas A. F. Jaeger

doi:10.1117/12.905674

31 August 2011 Ultra-wide-band coplanar waveguide based impedance transformer using slow-wave electrodes

Xia Yao, Nicolas A. F. Jaeger

Proceedings Volume 8007, Photonics North 2011; 80070G (2011) https://doi.org/10.1117/12.905674
Event: Photonics North 2011, 2011, Ottawa, Canada

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.

Citation Download Citation

Xia Yao and Nicolas A. F. Jaeger "Ultra-wide-band coplanar waveguide based impedance transformer using slow-wave electrodes", Proc. SPIE 8007, Photonics North 2011, 80070G (31 August 2011); https://doi.org/10.1117/12.905674

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