Ka-Band Single-Layer High-Efficiency Circular Aperture Microstrip Array Antenna

Table 1

Impedance and line width of main branch and row-matching-branch of each stage of feeding network.

Stage number	1	2	3	4	5	6	7	8
Zm (Ω)	40.9	48.9	60.8	69.0	95.2	25.0	37.5	83.3
Wm (mm)	1.05	0.82	0.58	0.47	0.26	2.02	1.19	0.34
Zc (Ω)	74.5	74.5	74.5	79.1	79.1	37.8	40.8	44.7
Wc (mm)	0.38	0.38	0.38	0.34	0.34	1.18	1.06	0.64