发表日期 : 2023-03-17
波导（WAVEGUIDE），是用来定向引导电磁波的结构。在电磁学和通信工程中，波导这个词可以指在它的端点间传递电磁波的任何线性结构，最初和最常见的意思是指用来传输无线电波的空心金属管。
波导主要用作微波频率的传输线，在微波炉、雷达、通讯卫星和微波无线电链路设备中用来将微波发送器和接收机与它们的天线连接起来。
波导管的优点是导体损耗和介质损耗小；功率容量大；没有辐射损耗；结构简单，易于制造。
| WR Model | Inner Size (inch） | Freq. Range(GHz） | TE10 Cutting Freq. (GHz） | Inner Size (mm） | UIY WR Flange size (mm） |
| WR-1 | 0.010 x 0.005 | 750-1100 | 590.551 | 0.0254*0.127 | / |
| WR-1.5 | 0.0150 x 0.0075 | 500-750 | 393.701 | 0.381*0.1905 | / |
| WR-2 | 0.020 x 0.010 | 325-500 | 295.276 | 0.508*0.254 | / |
| WR-3 | 0.034 x 0.017 | 220-325 | 173.691 | 0.8636*0.4318 | / |
| WR-4 | 0.0430 x 0.0215 | 170-260 | 137.337 | 1.0922*0.5461 | / |
| WR-5 | 0.0510 x 0.0255 | 140-220 | 115.794 | 1.2954*0.6477 | / |
| WR-6 | 0.0650 x 0.0325 | 110-170 | 90.854 | 1.651*0.8255 | / |
| WR-8 | 0.08 x 0.04 | 90-140 | 73.8189 | 2.032*1.016 | / |
| WR-10 | 0.10 x 0.05 | 75-110 | 59.0551 | 2.54*1.27 | dia19.1 |
| WR-12 | 0.122 x 0.061 | 60-90 | 48.4058 | 3.099*1.549 | dia19.1 |
| WR-15 | 0.148 x 0.074 | 50-75 | 39.9021 | 3.76*1.88 | dia19.1 |
| WR-19 | 0.188 x 0.094 | 40-60 | 31.4123 | 4.775*2.388 | dia28.6 |
| WR-22 | 0.224 x 0.112 | 33-50 | 26.3639 | 5.69*2.85 | dia28.6 |
| WR-28 | 0.280 x 0.140 | 26.5-40 | 21.0911 | 7.112*3.556 | 19.0*19.0 |
| WR-34 | 0.340 x 0.170 | 20-33 | 17.3692 | 8.64*4.32 | 21.1*21.1 |
| WR-42 | 0.420 x 0.170 | 18-26.5 | 14.0607 | 10.67*4.32 | 22.4*22.4 |
| WR-51 | 0.510 x 0.255 | 15-22 | 11.5794 | 12.95*6.48 | 30.2*30.2 |
| WR-62 | 0.622 x 0.311 | 12.4-18 | 9.49439 | 15.8*7.9 | 33.4*33.4 |
| WR-75 | 0.750 x 0.375 | 10 ~ 15 | 7.87401 | 19.05*9.53 | 38.1*38.1 |
| WR-90 | 0.900 x 0.400 | 8.2-12.4 | 6.56167 | 22.86*10.16 | 41.3*41.3 |
| WR-112 | 1.122 x 0.497 | 7.05-10 | 5.26338 | 28.5*12.62 | 47.8*47.8 |
| WR-137 | 1.372 x 0.622 | 5.85-8.2 | 4.30431 | 34.85*15.8 | 68.3*49.2 |
| WR-159 | 1.590 x 0.795 | 4.9-7.05 | 3.71416 | 40.4*20.2 | 81.0*61.9 |
| WR-187 | 1.872 x 0.872 | 3.95-5.85 | 3.15465 | 47.55*22.15 | 88.9*63.5 |
| WR-229 | 2.29 x 1.15 | 3.3-4.9 | 2.57882 | 58.17*29.08 | 98.4*69.9 |
| WR-284 | 2.84 x 1.34 | 2.6-3.95 | 2.07941 | 72.1*34 | 114.3*76.2 |
| WR-340 | 3.4 x 1.7 | 2.2-3.3 | 1.73692 | 86.36×43.18 | 138.2*95 |
| WR-430 | 4.30 x 2.15 | 1.7-2.6 | 1.37337 | 109.22*54.61 | 161.1*106.4 |
| WR-650 | 6.50 x 3.25 | 1.12-1.17 | 0.90854 | 165.1*82.55 | 220.7*138.1 |
| WR-770 | 7.700 x 3.385 | 0.96-1.5 | 0.76695 | 195.58*97.79 | 285*187.4 |
| WR-975 | 9.75 x 4.875 | 0.75-1.1 | 0.59203 | 247.65*123.82 | 336.6*212.7 |
| WR-1150 | 11.50 x 5.75 | 0.64-0.96 | 0.51352 | 292.1*146.1 | 381*235 |
| WR-1500 | 15.0 x 7.5 | 0.49-0.74 | 0.3937 | 381*190.5 | 469.9*279.4 |
| WR-1800 | 18 x 9 | 0.43-0.62 | 0.32808 | 457.2*228.6 | 546.1*317.5 |
| WR-2100 | 21.0 x 10.5 | 0.35-0.53 | 0.28121 | 533.4*266.7 | 625.5*358.8 |
| WR-2300 | 23.0 x 11.5 | 0.32-0.49 | 0.25676 | 584.2*292.1 | 676.3*384.2 |
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