| Design variants | A | B | C | D |
| order of smallest segments | regular | regular | reversed | regular |
| connection between subarrays with 1, 1, 1, 2 and 4 junctions | direct | separated | separated | direct |
| ground plane | homogeneous | homogeneous | homogeneous | slots between striplines |
| number of excellent 10 V circuits | 6 | 4 | 4 | 6 |