High Gain Array of Monopoles-Coupled Antennas for Wireless Applications

Table 1

Normalized incident waves and reference impedances which optimize the efficiency of the array antenna for a specified radiation pattern (5.6 GHz).

Monopoles	Length; (mm)	𝛽 (= weights for the coupled radiation patterns)	Normalized incident waves (𝑎𝑖) and antenna impedances (𝑍ref_𝑖) that optimize the efficiency
			𝑎𝑖	𝑍ref_𝑖
1	10.8	0.286⋅exp^(−𝑗∗48∘)	0.288⋅exp^(−𝑗∗49∘)	29+𝑗^∗13
2	9.8	0.293⋅exp^(𝑗∗155∘)	0.30⋅exp^(𝑗∗152∘)	32+𝑗^∗10
3	9.3	0.279⋅exp^(−𝑗∗3∘)	0.286⋅exp^(−𝑗∗6∘)	31+𝑗^∗9
4	9.3	0.284⋅exp^(−𝑗∗155∘)	0.291⋅exp^(−𝑗∗146∘)	30+𝑗^∗1
5	9.3	0.284⋅exp^(𝑗∗47∘)	0.287⋅exp^(𝑗∗35∘)	27−𝑗^∗2
6	8.8	0.280⋅exp^(−𝑗∗120∘)	0.283⋅exp^(−𝑗∗124∘)	29+𝑗^∗7.5
7	8.8	0.266⋅exp^(𝑗∗82∘)	0.262⋅exp^(𝑗∗79∘)	24+𝑗^∗8.5
8	8.8	0.264⋅exp^(−𝑗∗74∘)	0.251⋅exp^(−𝑗∗77∘)	20+𝑗^∗8.5
9	8.8	0.254⋅exp^(𝑗∗131∘)	0.227⋅exp^(𝑗∗124∘)	15+𝑗^∗3
10	8.8	0.275⋅exp^(−𝑗∗24∘)	0.257⋅exp^(−𝑗∗35∘)	18−𝑗^∗1.5
11	8.8	0.319⋅exp^(𝑗∗180∘)	0.323⋅exp^(𝑗∗165∘)	28−𝑗^∗7
12	8.3	0.361⋅exp^(𝑗∗0∘)	0.377⋅exp^(𝑗∗0∘)	48+𝑗^∗17