64
3 Modeling Composite Structures
40
50
60
70
80
90
100
110
0
50
100
150
200
250
300
350
400
R(Ohms)
Rotational Angle (degrees)
Angular Response of Layered Composite Structure
0 degrees
90 degrees
-240
-220
-200
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
50
100
150
200
250
300
350
400
X(Ohms)
Rotational Angle (degrees)
Angular Response of Layered Composite Structure
0 degrees
90 degrees
Fig. 3.3 Response of the two-layered structure of Fig. 3.2 when a racetrack coil excites the
structure. The x-axis is the orientation of the coil, and the frequency of excitation is 1 MHz