scholarly journals Analysis of the Reflection Properties in Electromagnetic Bandgap Coplanar Waveguides Loaded with Reactive Elements

2003 ◽  
Vol 42 ◽  
pp. 27-48 ◽  
Author(s):  
F. Martín ◽  
F. Falcone ◽  
J. Bonache ◽  
T. Lopetegi ◽  
M. A. G. Laso ◽  
...  
Keyword(s):  
Reactive Elements ◽  
Coplanar Waveguides ◽  
Electromagnetic Bandgap

ANALYSIS OF THE REFLECTION PROPERTIES IN ELECTROMAGNETIC BANDGAP COPLANAR WAVEGUIDES LOADED WITH REACTIVE ELEMENTS - ABSTRACT

2003 ◽  
Vol 17 (9) ◽  
pp. 1319-1322 ◽  
Author(s):  
F. Martín ◽  
F. Falcone ◽  
J. Bonache ◽  
T. Lopetegi ◽  
M. A. G. Laso ◽  
...  
Keyword(s):  
Reactive Elements ◽  
Coplanar Waveguides ◽  
Electromagnetic Bandgap

New electromagnetic bandgap nonlinear coplanar waveguides

2003 ◽  
Vol 37 (6) ◽  
pp. 397-401 ◽  
Author(s):  
Ferran Martín ◽  
Francisco Falcone ◽  
Jordi Bonache ◽  
Txema Lopetegi ◽  
Miguel A. G. Laso ◽  
...  
Keyword(s):  
Coplanar Waveguides ◽  
Electromagnetic Bandgap

Periodic-loaded sinusoidal patterned electromagnetic bandgap coplanar waveguides

2003 ◽  
Vol 36 (3) ◽  
pp. 181-184 ◽  
Author(s):  
Ferran Martín ◽  
Francisco Falcone ◽  
Jordi Bonache ◽  
Txema Lopetegi ◽  
Miguel A. G. Laso ◽  
...  
Keyword(s):  
Coplanar Waveguides ◽  
Electromagnetic Bandgap

High spatial resolution AEM observations of yttrium segregation in chromia scales grown on Co-45%Cr

1986 ◽  
Vol 44 ◽  
pp. 518-519
Author(s):  
K. Przybylski ◽  
A. J. Garratt-Reed ◽  
G. J. Yurek
Keyword(s):  
Spatial Resolution ◽  
Outer Surface ◽  
Maximum Concentration ◽  
High Spatial Resolution ◽  
Reactive Elements ◽  
Chromia Scales

The addition of so-called “reactive” elements such as yttrium to alloys is known to enhance the protective nature of Cr2O3 or Al2O3 scales. However, the mechanism by which this enhancement is achieved remains unclear. An A.E.M. study has been performed of scales grown at 1000°C for 25 hr. in pure O2 on Co-45%Cr implanted at 70 keV with 2x1016 atoms/cm2 of yttrium. In the unoxidized alloys it was calculated that the maximum concentration of Y was 13.9 wt% at a depth of about 17 nm. SIMS results showed that in the scale the yttrium remained near the outer surface.

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