S-shaped DMS [11] |
0–12 GHz |
Maximum of approximately 30
dB |
T-shaped DMS [15] |
0–10GHz |
Maximum of approximately 35
dB |
Irregular-shaped DMS [16] |
0–12 GHz |
Maximum of approximately 24
dB |
G-shaped DMS and stepped structure [17] |
1–8 GHz |
Maximum of
approximately 20 dB |
TL-shaped DMS |
0–8 GHz |
Maximum of approximately 42 dB |