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Apresentação do PowerPoint · Scattering, in physics, a change in the direction of motion of a...
Transcript of Apresentação do PowerPoint · Scattering, in physics, a change in the direction of motion of a...
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VNA Basics Germán Andrés Álvarez Botero
Laboratório de Radiofrequência
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S-parameters
Incident Wave (A)
Reflected Wave (B)
Transmitted Wave (T)
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S-Parameters
Scattering, in physics, a change in the direction of motion of a particle because of a collision with another particle.
"scattering". Encyclopædia Britannica. Encyclopædia Britannica Online. Encyclopædia Britannica Inc., 2015. Web. 16 Sep. 2015 <http://global.britannica.com/science/scattering>.
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S-Parameters
Incident wave
Backward scattering
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S-Parameters
Incident wave
Backward scattering
Incident wave
Forward scattering
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VNA Basics
Incident wave (a1)
Backward scattered (b1)
Device Under Test (DUT) Reflection coefficient
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VNA Basics
Directional coupler
Device Under Test (DUT)
1 2
3 4
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VNA Basics
Directional coupler
Device Under Test (DUT) D2
K1
D2: Directivity K1: Coupling
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VNA Basics
Directional coupler
Device Under Test (DUT) D2
K1
Directional coupler
Device Under Test (DUT) D1
K2 D1, D2 : Directivities K1, K2: Coupling
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VNA Basics
Directional coupler
Device Under Test (DUT)
EinK1
D2 D1
ErK2
Em2 Em1
D1, D2 : Directivities K1, K2: Coupling Ein: Input Signal Er: Reflected Signal Em: Measured Signal (Including error)
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VNA Basics
Device Under Test (DUT)
D2
ErK2
Em2 EinK1
D1
Em1
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VNA Basics
R
P2
P1
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VNA Basics
R
P2
P1 D1, D2 : Directivities K1, K2: Coupling
D1, D2 : Directivities K1, K2: Coupling
Switching error
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VNA Basics
Incident wave (a1)
Backward scattered wave (b1)
Forward scattered wave (b2)
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VNA Basics
Incident wave (a1)
Backward scattered wave (b1)
Forward scattered wave (b2)
Forward scattered wave (b1)
Incident wave (a2)
Backward scattered wave (b2)
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VNA Basics
Incident wave (a1)
Backward scattered wave (b1)
Incident wave (a2)
Backward scattered wave (b2)
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VNA Basics
Incident wave (a1)
Backward scattered wave (b1)
Incident wave (a2)
Backward scattered wave (b2)
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VNA Basics
Incident wave (a1)
Backward scattered wave (b1)
Backward scattered wave (b2)
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VNA Basics
Incident wave (a1)
Backward scattered wave (b1)
Backward scattered wave (b2)
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VNA Basics
Incident wave (a1)
Backward scattered wave (b1)
Backward scattered wave (b2)
(a2)
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VNA Basics
Incident wave (a1)
Backward scattered wave (b1)
Backward scattered wave (b2)
(a2)
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- -
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VNA Basics
a1
b1
a2
b2
+ +
- - Switching Directivities Coupling
Switching Directivities
Coupling
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VNA Basics
a1
b1
a2
b2
+ +
- - Switching Directivities Coupling
Switching Directivities
Coupling
Source/Load Match
Load/Source Match
Isolation Reflection/Transmission tracking
Transmission/Reflection tracking
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VNA Basics
a1
b1
a2
b2
+ +
- - Switching Directivities Coupling
Switching Directivities
Coupling
Source/Load Match
Load/Source Match
Isolation Reflection/Transmission tracking
Transmission/Reflection tracking
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VNA Basics
a1
b1
a2
b2
+ +
- -
Open Short Load Thru
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VNA Basics
a1
b1
+
-
Calibration Std.
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VNA Basics
a1
b1
+
-
Calibration Std.
VNA model for Open, Short, Match
Calibration procedure use a polinomial fitting to obtain the constitutive parameters
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VNA Basics
a1
b1
+
-
Calibration Std. Open
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VNA Basics
a1
b1
+
-
Calibration Std. Short
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VNA Basics
a1
b1
+
-
Calibration Std. Match
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VNA Basics
a1
b1
+
-
Calibration Std.
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VNA Basics
a1
b1
+
-
Calibration Std.
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VNA Basics
a1
b1
+
-
Calibration Std.
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VNA Basics
a1
b1
+
-
Calibration Std.
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Obrigado Galera!!!
¡¡¡ Gracias a todos!!!
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Germán Andrés Álvarez Botero [email protected]
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% Código Mathematica ParametricPlot3D[{(1 + Cos[v]) Cos[u] + 0.085 Cos[5 u] + (0.994 v/p)^100, (1 + Cos[v]) Sin[u]6 Sin[v] + 2 Cos[v] - 0.7 Log[1 - v/p]}, {u, -p, Pi}, {v, -p, Pi}, Mesh -> True, BoxRatios -> 1, PlotStyle -> {Green, Specularity[Yellow, 10]}]