International Journal of Antennas and Propagation

Research Article

Design of Shaped Beam Planar Arrays of Waveguide Longitudinal Slots

Table 1

(a) Required normalized amplitude of slots excitations for the 8 × 8 planar array with a circular radiation pattern. (b) Required phase (degrees) of slots excitations for the 8 × 8 planar array with a circular radiation pattern. (c) Designed slots lengths (mm) for the 8 × 8 planar array with a circular radiation pattern. (d) Designed slots offsets (mm) for the 8 × 8 planar array with a circular radiation pattern.

(a)


Radiat. waveg.	Slot 1	Slot 2	Slot 3	Slot 4	Slot 5	Slot 6	Slot 7	Slot 8

1	0.10	0.10	0.15	0.16	0.16	0.15	0.10	0.10
2	0.10	0.18	0.17	0.10	0.10	0.17	0.18	0.10
3	0.15	0.17	0.19	0.49	0.49	0.19	0.17	0.15
4	0.16	0.10	0.49	1.00	1.00	0.49	0.10	0.16
5	0.16	0.10	0.49	1.00	1.00	0.49	0.10	0.16
6	0.15	0.17	0.19	0.49	0.49	0.19	0.17	0.15
7	0.10	0.18	0.17	0.10	0.10	0.17	0.18	0.10
8	0.10	0.10	0.15	0.16	0.16	0.15	0.10	0.10

(b)


Radiat. waveg.	Slot 1	Slot 2	Slot 3	Slot 4	Slot 5	Slot 6	Slot 7	Slot 8

1	129.9	10.9	3.6	0.0	0.0	3.6	10.9	129.9
2	10.9	6.5	19.3	47.9	47.9	19.3	6.5	10.9
3	3.6	19.3	129.9	139.4	139.4	129.9	19.3	3.6
4	0.0	47.9	139.4	149.1	149.1	139.4	47.9	0.0
5	0.0	47.9	139.4	149.1	149.1	139.4	47.9	0.0
6	3.6	19.3	129.9	139.4	139.4	129.9	19.3	3.6
7	10.9	6.5	19.3	47.9	47.9	19.3	6.5	10.9
8	129.9	10.9	3.6	0.0	0.0	3.6	10.9	129.9

(c)


Radiat. waveg.	Slot 1	Slot 2	Slot 3	Slot 4	Slot 5	Slot 6	Slot 7	Slot 8

1	16.04	15.58	15.82	16.24	16.24	15.82	15.58	16.04
2	15.44	15.98	15.49	17.29	7.29	15.49	15.98	15.44
3	16.23	14.82	16.17	16.27	16.27	16.17	14.82	16.23
4	15.92	13.47	16.85	16.16	16.16	16.85	13.47	15.92
5	15.89	13.17	16.33	16.34	16.34	16.33	13.17	15.89
6	15.74	15.24	16.71	16.16	16.16	16.71	15.24	15.74
7	16.28	15.60	15.63	7.31	17.31	15.63	15.60	16.28
8	16.55	15.97	15.70	16.27	16.27	15.70	15.97	16.55

(d)


Radiat. waveg.	Slot 1	Slot 2	Slot 3	Slot 4	Slot 5	Slot 6	Slot 7	Slot 8

1	−0.19	−0.20	0.27	−0.12	0.12	−0.27	0.20	0.19
2	−0.15	0.26	−0.33	−0.21	0.21	0.33	−0.26	0.15
3	0.08	−0.60	−0.13	0.58	−0.58	0.13	0.60	−0.08
4	−0.29	0.86	0.67	−1.05	1.05	−0.67	−0.86	0.29
5	0.24	−1.18	−0.64	1.11	−1.11	0.64	1.18	−0.24
6	−0.20	0.49	0.32	−0.48	0.48	−0.32	−0.49	0.20
7	0.06	−0.25	0.39	0.25	−0.25	−0.39	0.25	−0.06
8	0.30	0.21	−0.25	0.12	−0.12	0.25	−0.21	−0.30