Table 1 Circular antenna dimensions

Substrate width \(W_{{\text{s}}}\)

27.8

Substratelength:\(L_{{\text{S}}}\)

47.8

Circular patch radius:\(a\)

11.5

Feed line width:\(W_{{\text{f}}}\)

3.1

Slot 1 width:\(W_{1}\)

14

Slot 1 length:\(L_{1}\)

2

Slot 2 width:\(W_{2}\)

13

Slot 2 length:\(L_{2}\)

2