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Table 4 Dimensions of the proposed filtenna in \(\text{mm}\)

From: Efficient design of a wideband tunable microstrip filtenna for spectrum sensing in cognitive radio systems

Parameter

Value \((\text{mm})\)

Parameter

Value \((\text{mm})\)

\({d}_{1}\)

8

\({a}_{1}\)

4

\({d}_{2}\)

5.5

\({a}_{2}\)

2

\({d}_{3}\)

1. 5

\({a}_{3}\)

3

\({d}_{4}\)

0.75

\({R}_{h}\)

1

\({d}_{5}\)

0.75

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