A Modified Vivaldi Antenna for Improved Angular-Dependent Fidelity Property

Table 2

Computed fidelity factor of the original antenna in H-plane and E-plane.

H-plane (𝜑=90)		E-plane (𝜑=0)
θ (degree)	Fidelity factor	θ (degree)	Fidelity factor
0	1	0	1
5	0.99998	5	0.99182
10	0.99157	10	0.99154
15	0.99012	15	0.99040
20	0.98533	20	0.98758
25	0.97260	25	0.98263
30	0.94303	30	0.97626
35	0.88816	35	0.97320
40	0.77987	40	0.97004
45	0.62700	45	0.97318
50	0.46141	50	0.97558
55	0.53453	55	0.97288
60	0.53101	60	0.96154
65	0.44638	65	0.93226
70	0.34619	70	0.86615
75	0.33003	75	0.73830
80	0.35294	80	0.57766
85	0.35444	85	0.63184