| Frequency Range (GHz) | Waveguide Designation | Internal Dimensions (mm) | ‘Standard’ flange details Please see page 113 - 118 for outline dimensions | |||
| British | IEC R | EIA WR | Designation | Description | ||
| WG | ||||||
| 1.14 - 1.73 | 6 | 14 | 650 | 165.100 x 82.550 | UG-417B/U Type (but without groove) | Rectangular, Ten hole fixing + 2 dowel holes |
| 1.72 - 2.61 | 8 | 22 | 430 | 109.220 x 54.610 | UG-435B/U Type (but without groove) | Rectangular, Ten hole fixing + 2 dowel holes |
| 2.17 - 3.30 | 9A | 26 | 340 | 90.42 x 47.24 | UDR26 | Rectangular, Ten hole fixing |
| 2.60 - 3.95 | 10 | 32 | 284 | 72.140 x 34.040 | 5985-99-083-1560 also drilled for the 5985-99-083-0010 | Circular, Six/Eight hole fixing |
| 3.22 - 4.90 | 11A | 40 | 229 | 58.170 x 29.083 | UDR 40 | Rectangular, Ten hole fixing |
| 3.94 - 5.99 | 12 | 48 | 187 | 47.550 x 22.149 | UAR 48 | Circular, Eight hole fixing |
| 4.64 - 7.05 | 13 | 58 | 159 | 40.390 x 20.193 | UAR 58 | Circular, Six hole fixing |
| 5.38 - 8.18 | 14 | 70 | 137 | 34.850 x 15.799 | UAR 70 | Circular, Six hole fixing |
| 6.58 - 10.0 | 15 | 84 | 112 | 28.449 x 12.624 | UBR 84 | Square, Four hole fixing |
| 8.20 - 12.5 | 16 | 100 | 90 | 22.860 x 10.160 | UBR 100 | Square, Four hole fixing |
| 9.84 - 15.0 | 17 | 120 | 75 | 19.050 x 9.525 | UBR 120 | Square, Four hole fixing |
| 11.9 - 18.0 | 18 | 140 | 62 | 15.799 x 7.899 | UBR 140 | Square, Four hole fixing |
| 14.5 - 22.0 | 19 | 180 | 51 | 12.954 x 6.477 | UBR 180 | Square, Four hole fixing |
| 17.6 - 26.7 | 20 | 220 | 42 | 10.668 x 4.318 | UBR 220 Type | Square, Four hole fixing |
| 21.7 - 33.0 | 21 | 260 | 34 | 8.636 x 4.318 | UBR 260 Type | Square, Four hole fixing |
| 26.4 - 40.1 | 22 | 320 | 28 | 7.112 x 3.556 | UG-599/U | Square, Four hole fixing |
| 33.0 - 50.1 | 23 | 400 | 22 | 5.690 x 2.845 | *UG-383/U | Circular, Four hole fixing/doweled |
| 39.3 - 59.7 | 24 | 500 | 19 | 4.775 x 2.388 | *UG-383/U (Modified) | Circular, Four hole fixing/doweled |
| 49.9 - 75.8 | 25 | 620 | 15 | 3.759 x 1.880 | *UG-385/U | Circular, Four hole fixing/doweled |
| 60.5 - 92.0 | 26 | 740 | 12 | 3.099 x 1.549 | *UG-387/U | Circular, Four hole fixing/doweled |
| 73.8 - 112 | 27 | 900 | 10 | 2.540 x 1.270 | *UG-387/U (Modified) | Circular, Four hole fixing/doweled |
| 92.3 - 140.0 | 28 | 1200 | 8 | 2.032 x 1.016 | *UG-387/U (Modified) | Circular, Four hole fixing/doweled |
| 114.0 - 173.0 | 29 | 1400 | 6 | 1.651 x 0.826 | *UG-387/U (Modified) | Circular, Four hole fixing/doweled |
| 145.0 - 220.0 | 30 | 1800 | 5 | 1.295 x 0.648 | *UG-387/U (Modified) | Circular, Four hole fixing/doweled |
| 172.0 - 261.0 | 31 | 2200 | 4 | 1.092 x 0.546 | *UG-387/U (Modified) | Circular, Four hole fixing/doweled |
| 217.0 - 330.0 | 32 | 2600 | 3 | 0.864 x 0.432 | *UG-387/U (Modified) | Circular, Four hole fixing/doweled |
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