EM Wave Absorbers Protecting Biological and Medical Environment - RF/Microwave Interaction with Biological Tissues - page 223

e r = 10 f = 2.45 GHz e r = 10 f = 3.0 GHz

7 7

6 6

5 5

-20

-15

4 4

-5 -10

-10

-5

3 3

-15

-20

2 -25 2

-20

-25

1 1

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Hole space (mm)
(b)

Hole space (mm)
(a)

e r = 25 f = 2.45 GHz

e r = 10 f = 4.0 GHz

7

7

-20

-15

-20 -20

6

6

-15

-15

5

-10

5

-15

-10

4 -5

4

-10

-5

-25

3

3

-10

2 2

5

1 1

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Hole space (mm)
(c)

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Hole space (mm)
(d)

e r = 25 f = 4.0 GHz

e r = 25 f = 3.0 GHz

7

7

-15

6

6

-10

-15
-10
-10

5

5 -10

4 -5

4 -25

-5

-20

-5

-5

3 3

2 2

1 1

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Hole space (mm)
(e)

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Hole space (mm)
(f)

FIGURE 5.23 Matching characteristics with permittivity as parameter ( Kf 1 = 4.5 GHz,
K = 3, d = 6.0 mm).