射频（300KHz-300MHz）：包括LF，MF，HF，VHF
微波（300MHz-3000GHz）：包括UHF，SHF，EHF，PHF
微波频段的划分
E 60.00-90.00
F 90.00-140.00
G 140.00-220.00
R 220.00-325.00
| 波段 | 频率范围 /GHz |
|---|---|
| UHF | 0.3-1.12 |
| L | 1.12-1.70 |
| LS | 1.70-2.60 |
| S | 2.60-3.95 |
| C | 3.95-5.85 |
| XC | 5.85-8.20 |
| X | 8.20-12.40 |
| Ku | 12.10-18.0 |
| K | 18.0-26.0 |
| Ka | 26.5-40 |
| Q | 33.0-50.0 |
| U | 40.0-60.0 |
| M | 50.0-75.0 |
| E | 60.0-90.0 |
| F | 90.0-140.0 |
| G | 140.0-220.0 |
| R | 220.0-325.0 |