毫米波太赫兹波导法兰定义
Waveguide & Flange Designations
This reference is about rectangular electromagnetic waveguides at millimeter wave / THz frequencies. The table below presents commonly used rectangular waveguide and flange designations. Note that above 75 GHz new waveguide designations have been proposed by IEEE in order to extend standards to 1.1 THz.
| Operating Frequency (GHz) | Frequency Band Designation | Waveguide Designation | Flange UG | Flange Type | Cut-off Frequency (GHz) | Inner Dimensions (mm) | ||
| EIA -1 | RCSC -2 | IEEE -3 | ||||||
| 18.00 - 26.50 | K Band | WR 42 | WG 20 | UG 599/U | Square | 14.051 | 10.668 x 5.334 | |
| 22.00 - 33.00 | WR 34 | WG 21 | Square | 17.357 | 8.636 x 4.318 | |||
| 26.50 - 40.00 | Ka Band | WR 28 | WG 22 | UG 595/U | Square | 21.077 | 7.112 x 3.556 | |
| 33.00 - 50.00 | Q (B) Band | WR 22 | WG 23 | UG 383/U | Round | 26.346 | 5.690 x 2.945 | |
| 40.00 - 60.00 | U Band | WR 19 | WG 24 | UG 383/U-M | Round | 31.391 | 4.775 x 2.3875 | |
| 50.00 - 75.00 | V Band | WR 15 | WG 25 | UG 385/U | Round | 38.875 | 3.760 x 1.880 | |
| 60.00 - 90.00 | E Band | WR 12 | WG 26 | UG 387/U | Round | 48.373 | 3.098 x 1.550 | |
| 75.00 - 110.00 | W Band | WR 10 | WG 27 | WM-2540 | UG 387/U-M | Round | 59.015 | 2.540 x 1.270 |
| 90.00 - 140.00 | F Band | WR 08 | WG 28 | WM-2032 | UG 387/U-M | Round | 73.768 | 2.032 x 1.016 |
| 110.00 - 170.00 | D Band | WR 06 | WG 29 | WM-1651 | UG 387/U-M | Round | 90.791 | 1.651 x 0.8255 |
| 140.00 - 220.00 | G Band | WR 05 | WG 30 | WM-1295 | UG 387/U-M | Round | 115.714 | 1.295 x 0.6475 |
| 170.00 - 260.00 | WR 04 | WG 31 | WM-1092 | UG 387/U-M | Round | 137.243 | 1.092 x 0.546 | |
| 220.00 - 330.00 | WR 03 | WG 32 | WM-864 | UG 387/U-M | Round | 173.571 | 0.864 x 0.432 | |
| 260.00 - 400.00 | WR 2.8 | WM-710 | UG 387/U-M | Round | 211.12 | 0.710 x 0.355 | ||
| 330.00 - 500.00 | WR 2.2 | WM-570 | UG 387/U-M | Round | 262.97 | 0.570 x 0.285 | ||
| 500.00 - 750.00 | WR 1.5 | WM-380 | UG 387/U-M | Round | 394.46 | 0.380 x 0.190 |
-1 EIA: Electronic Industries Alliance
-2 RCSC: Radio Components Standardization Committee
-3 IEEE: new standard
-4 Above
about 100 GHz there are often incompatibilites between flanges produced
by a variety of companies. This has arisen because the MIL STD flanges
have insufficient precision to achieve good performance at shorter
wavelengths. A series of ad hoc adjustments have been made by
manufacturers in an effort to improve performance, however this can lead
to interconnection issues. VivaTech recommends that the customer always
specifies the required flange dimensions including the dowel holes and
pin diameter when ordering components > 100 GHz.
