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FT-RF Guide to Circular Waveguide EIA WC ID (cm) ID (mm) Cutoff Freq (GHz) Rec. Frequency (GHz) 992 25.184 251.84 0.698 0.8 - 1.1 847 21.514 215.14 0.817 0.94 - 1.29 724 18.377 183.77 0.957 1.1 - 1.51 618 15.7 157 1.12 1.29 - 1.76 528 13.411 134.11 1.311 1.51 - 2.07 451 11.458 114.58 1.534 1.76 - 2.42 385 9.787 97.87 1.796 2.07 - 2.83 329 8.362 83.62 2.102 2.42 - 3.31 281 7.142 71.42 2.461 2.83 - 3.88 240 6.104 61.04 2.88 3.31 - 4.54 205 5.199 51.99 3.381 3.89 - 5.33 175 4.445 44.45 3.955 4.54 - 6.23 150 3.81 38.1 4.614 5.3 - 7.27 128 3.254 32.54 5.402 6.21 - 8.51 109 2.779 27.79 6.326 7.27 - 9.97 94 2.383 23.83 7.377 8.49 - 11.6 80 2.024 20.24 8.685 9.97 - 13.7 69 1.748 17.48 10.057 11.6 - 15.9 59 1.509 15.09 11.649 13.4 - 18.4 50 1.27 12.7 13.842 15.9 - 21.8 44 1.113 11.13 15.794 18.2 - 24.9 38 0.953 9.53 18.446 21.2 - 29.1 33 0.833 8.33 21.103 24.3 - 33.2 28 0.714 7.14 24.62 28.3 - 38.8 25 0.635 6.35 27.683 31.8 - 43.6 22 0.556 5.56 31.617 36.4 - 49.8 19 0.478 4.78 36.776 42.4 - 58.1 17 0.437 4.37 40.227 46.3 - 63.5 14 0.358 3.58 49.103 56.6 - 77.5 13 0.318 3.18 55.28 63.5 - 87.2 11 0.277 2.77 63.462 72.7 - 99.7 9 0.239 2.39 73.552 84.8 - 116

Standard Rectangular Waveguides for Standard gain horn antenna Table as below: 　 WR Designation Physical dimensions inside in cm Cut off frequency for air-filled waveguide in GHz Standard freq range GHz Width (cm) Height (cm) 　 2300 58.42 29.21 0.315 0.32-0.47 2100 53.34 26.7 0.323 0.35-0.53 1800 45.72 22.86 0.335 0.41-0.62 1500 38.1 19.05 0.46 0.49-0.75 1150 29.21 14.605 0.51 0.61-0.98 975 24.765 12.382 0.65 0.76-1.15 770 19.55 9.799 0.767 0.96-1.46 650 16.51 8.255 0.909 1.14-1.73 510 12.954 6.477 1.158 1.45-2.2 430 10.922 5.461 1.373 1.72-2.61 340 8.636 4.318 1.737 2.17-3.3 284 7.214 3.404 2.079 2.6-3.95 229 5.817 2.908 2.579 3.22-4.9 187 4.755 2.215 3.155 3.94-5.99 159 4.039 2.019 3.714 4.64-7.05 137 3.485 1.58 4.304 5.38-8.17 122 2.85 1.262 5.263 6.57-9.99 90 2.286 1.016 6.562 8.2-12.5 75 1.905 0.953 7.874 9.84-15 62 1.58 0.79 9.494 11.9-18 51 1.295 0.648 11.583 14.5-22 42 1.067 0.432 14.058 17.6-26.7 34 0.864 0.432 17.361 21.7-33 28 0.711 0.356 21.097 26.4-40 22 0.569 0.284 26.362 32.9-50.1 19 0.478 0.239 31.381 39.2-59.6 15 0.376 0.188 39.894 49.8-75.8 12 0.31 0.155 48.387 60.5-91.9 10 0.254 0.127 59.055 73.8-112 8 0.203 0.102 73.892 92.2-140 7 0.165 0.084 90.909 114-173 5 0.13 0.066 115.385 145-220 4 0.109 0.056 137.615 172-261 3 0.086 0.043 174.419 217-333

How to test EMC Antenna - Dual Polarized Horn Antennas ( Quad ridged horn antenna & Open boundary quad ridged horn antenna? The Dual Polarized Horn Antenna includes HQ model - Quad-ridged Horn Antenna, Open Boundary Quad-Ridged Horn Antenna -HR Model. These Horn antennas have an electronic switch that may simultaneously test horizontal and vertical or +-45deg polarization, as well as a couple that can test circular polarization. The dual-polarized antennas are mounted on a special table or wall. FT-RF also supply the calibration service for these antennas in case the customer wants to use them for a certain purpose. How to test EMC Antenna - Single-polarized Horn Antennas (Double ridged horn antenna & Open boundary double ridged horn antenna)? HA Model - Double-Ridged Horn Antenna & HB model - Open Boundary Double-Ridged Horn Antenna are commonly used to replace the antenna method's calibration antenna. When HA calibration is utilized, the calibration site is lost (patch loss uses a network analyzer) Enter the antenna's gain (minus the gain of the antenna, equal to the address of the object under test, return to zero) There is only one technique to compute antenna gain. The path loss patch loss subtracts the antenna's gain and substitutes the antenna under test to obtain the antenna's gain. Rotate the object under test...

With constant research and innovation, we officially launched the HA-1840G-NF product line - 18GHz to 40GHz Double Ridged Broadband Waveguide Horn Antenna next to the HA-1040G-NF product (with an o...

Milli Watts to dBm Reference/ Conversion Table mW dBm mW dBm mW dBm mW dBm mW dBm 0 - 1 0.00000 2 3.01030 3 4.77121 4 6.02060 5 6.98970 6 7.78151 7 8.45098 8 9.03090 9 9.54243 10 10.0000 11 10.4139 12 10.7918 13 11.1394 14 11.4613 15 11.7609 16 12.0412 17 12.3045 18 12.5527 19 12.7875 20 13.0103 21 13.2222 22 13.4242 23 13.6173 24 13.8021 25 13.9794 26 14.1497 27 14.3136 28 14.4716 29 14.6240 30 14.7712 31 14.9136 32 15.0515 33 15.1851 34 15.3148 35 15.4407 36 15.5630 37 15.6820 38 15.7978 39 15.9106 40 16.0206 41 16.1278 42 16.2325 43 16.3347 44 16.4345 45 16.5321 46 16.6276 47 16.7210 48 16.8124 49 16.9020 50 16.9897 51 17.0757 52 17.1600 53 17.2428 54 17.3239 55 17.4036 56 17.4819 57 17.5587 58 17.6343 59 17.7085 60 17.7815 61 17.8533 62 17.9239 63 17.9934 64 18.0618 65 18.1291 66 18.1954 67 18.2607 68 18.3251 69 18.3885 70 18.4510 71 18.5126 72 18.5733 73 18.6332 74 18.6923 75 18.7506 76 18.8081 77 18.8649 78 18.9209 79 18.9763 80 19.0309 81 19.0849 82 19.1381 83 19.1908 84 19.2428 85 19.2942 86 19.3450 87 19.3952 88 19.4448 89 19.4939 90 19.5424 91 19.5904 92 19.6379 93 19.6848 94 19.7313 95 19.7772 96 19.8227 97 19.8677 98 19.9123 99 19.9564 100 20.0000 101 20.0432 102 20.0860 103 20.1284 104 20.1703 105 20.2119 106 20.2531 107 20.2938 108 20.3342 109 20.3743 110 20.4139 111 20.4532 112 20.4922 113 20.5308 114 20.5690 115 20.6070 116 20.6446 117 20.6819 118 20.7188 119 20.7555 120 20.7918 121 20.8279 122 20.8636 123 20.8991 124 20.9342 125 20.9691 126 21.0037 127 21.0380 128 21.0721 129 21.1059 130 21.1394 131 21.1727 132 21.2057 133 21.2385 134 21.2710 135 21.3033 136 21.3354 137 21.3672 138 21.3988 139 21.4301 140 21.4613 141 21.4922 142 21.5229 143 21.5534 144 21.5836 145 21.6137 146 21.6435 147 21.6732 148 21.7026 149 21.7319 150 21.7609 151 21.7898 152 21.8184 153 21.8469 154 21.8752 155 21.9033 156 21.9312 157 21.9590 158 21.9866 159 22.0140 160 22.0412 161 22.0683 162 22.0952 163 22.1219 164 22.1484 165 22.1748 166 22.2011 167 22.2272 168 22.2531 169 22.2789 170 22.3045 171 22.3300 172 22.3553 173 22.3805 174 22.4055 175 22.4304 176 22.4551 177 22.4797 178 22.5042 179 22.5285 180 22.5527 181 22.5768 182 22.6007 183 22.6245 184 22.6482 185 22.6717 186 22.6951 187 22.7184 188 22.7416 189 22.7646 190 22.7875 191 22.8103 192 22.8330 193 22.8556 194 22.8780 195 22.9003 196 22.9226 197 22.9447 198 22.9667 199 22.9885 200 23.0103 201 23.0320 202 23.0535 203 23.0750 204 23.0963 205 23.1175 206 23.1387 207 23.1597 208 23.1806 209 23.2015 210 23.2222 211 23.2428 212 23.2634 213 23.2838 214 23.3041 215 23.3244 216 23.3445 217 23.3646 218 23.3846 219 23.4044 220 23.4242 221 23.4439 222 23.4635 223 23.4830 224 23.5025 225 23.5218 226 23.5411 227 23.5603 228 23.5793 229 23.5984 230 23.6173 231 23.6361 232 23.6549 233 23.6736 234 23.6922 235 23.7107 236 23.7291 237 23.7475 238 23.7658 239 23.7840 240 23.8021 241 23.8202 242 23.8382 243 23.8561 244 23.8739 245 23.8917 246 23.9094 247 23.9270 248 23.9445 249 23.9620 250 23.9794 251 23.9967 252 24.0140 253 24.0312 254 24.0483 255 24.0654 256 24.0824 257 24.0993 258 24.1162 259 24.1330 260 24.1497 261 24.1664 262 24.1830 263 24.1996 264 24.2160 265 24.2325 266 24.2488 267 24.2651 268 24.2813 269 24.2975 270 24.3136 271 24.3297 272 24.3457 273 24.3616 274 24.3775 275 24.3933 276 24.4091 277 24.4248 278 24.4404 279 24.4560 280 24.4716 281 24.4871 282 24.5025 283 24.5179 284 24.5332 285 24.5484 286 24.5637 287 24.5788 288 24.5939 289 24.6090 290 24.6240 291 24.6389 292 24.6538 293 24.6687 294 24.6835 295 24.6982 296 24.7129 297 24.7276 298 24.7422 299 24.7567 300 24.7712 301 24.7857 302 24.8001 303 24.8144 304 24.8287 305 24.8430 306 24.8572 307 24.8714 308 24.8855 309 24.8996 310 24.9136 311 24.9276 312 24.9415 313 24.9554 314 24.9693 315 24.9831 316 24.9969 317 25.0106 318 25.0243 319 25.0379 320 25.0515 321 25.0651 322 25.0786 323 25.0920 324 25.1055 325 25.1188 326 25.1322 327 25.1455 328 25.1587 329 25.1720 330 25.1851 331 25.1983 332 25.2114 333 25.2244 334 25.2375 335 25.2504 336 25.2634 337 25.2763 338 25.2892 339 25.3020 340 25.3148 341 25.3275 342 25.3403 343 25.3529 344 25.3656 345 25.3782 346 25.3908 347 25.4033 348 25.4158 349 25.4283 350 25.4407 351 25.4531 352 25.4654 353 25.4777 354 25.4900 355 25.5023 356 25.5145 357 25.5267 358 25.5388 359 25.5509 360 25.5630 361 25.5751 362 25.5871 363 25.5991 364 25.6110 365 25.6229 366 25.6348 367 25.6467 368 25.6585 369 25.6703 370 25.6820 371 25.6937 372 25.7054 373 25.7171 374 25.7287 375 25.7403 376 25.7519 377 25.7634 378 25.7749 379 25.7864 380 25.7978 381 25.8092 382 25.8206 383 25.8320 384 25.8433 385 25.8546 386 25.8659 387 25.8771 388 25.8883 389 25.8995 390 25.9106 391 25.9218 392 25.9329 393 25.9439 394 25.9550 395 25.9660 396 25.9770 397 25.9879 398 25.9988 399 26.0097 400 26.0206 401 26.0314 402 26.0423 403      

dBm to MilliWatts (mW) Conversion Table To convert from dBm to milli-Watt (mW), find the dBm value in the left column. The corresponding value in the right column is the milli-Watt value. dBm mW dBm mW dBm mW dBm mW dBm mW 0.0 1.00000 0.1 1.02329 0.2 1.04713 0.3 1.07152 0.4 1.09648 0.5 1.12202 0.6 1.14815 0.7 1.17490 0.8 1.20226 0.9 1.23027 1.0 1.2589 1.1 1.2882 1.2 1.3183 1.3 1.3490 1.4 1.3804 1.5 1.4125 1.6 1.4454 1.7 1.4791 1.8 1.5136 1.9 1.5488 2.0 1.5849 2.1 1.6218 2.2 1.6596 2.3 1.6982 2.4 1.7378 2.5 1.7783 2.6 1.8197 2.7 1.8621 2.8 1.9055 2.9 1.9498 3.0 1.9953 3.1 2.0417 3.2 2.0893 3.3 2.1380 3.4 2.1878 3.5 2.2387 3.6 2.2909 3.7 2.3442 3.8 2.3988 3.9 2.4547 4.0 2.5119 4.1 2.5704 4.2 2.6303 4.3 2.6915 4.4 2.7542 4.5 2.8184 4.6 2.8840 4.7 2.9512 4.8 3.0200 4.9 3.0903 5.0 3.1623 5.1 3.2359 5.2 3.3113 5.3 3.3884 5.4 3.4674 5.5 3.5481 5.6 3.6308 5.7 3.7154 5.8 3.8019 5.9 3.8905 6.0 3.9811 6.1 4.0738 6.2 4.1687 6.3 4.2658 6.4 4.3652 6.5 4.4668 6.6 4.5709 6.7 4.6774 6.8 4.7863 6.9 4.8978 7.0 5.0119 7.1 5.1286 7.2 5.2481 7.3 5.3703 7.4 5.4954 7.5 5.6234 7.6 5.7544 7.7 5.8884 7.8 6.0256 7.9 6.1660 8.0 6.3096 8.1 6.4565 8.2 6.6069 8.3 6.7608 8.4 6.9183 8.5 7.0795 8.6 7.2444 8.7 7.4131 8.8 7.5858 8.9 7.7625 9.0 7.9433 9.1 8.1283 9.2 8.3176 9.3 8.5114 9.4 8.7096 9.5 8.9125 9.6 9.1201 9.7 9.3325 9.8 9.5499 9.9 9.7724 10.0 10.0000 10.1 10.2329 10.2 10.4713 10.3 10.7152 10.4 10.9648 10.5 11.2202 10.6 11.4815 10.7 11.7490 10.8 12.0226 10.9 12.3027 11.0 12.5893 11.1 12.8825 11.2 13.1826 11.3 13.4896 11.4 13.8038 11.5 14.1254 11.6 14.4544 11.7 14.7911 11.8 15.1356 11.9 15.4882 12.0 15.8489 12.1 16.2181 12.2 16.5959 12.3 16.9824 12.4 17.3780 12.5 17.7828 12.6 18.1970 12.7 18.6209 12.8 19.0546 12.9 19.4984 13.0 19.9526 13.1 20.4174 13.2 20.8930 13.3 21.3796 13.4 21.8776 13.5 22.3872 13.6 22.9087 13.7 23.4423 13.8 23.9883 13.9 24.5471 14.0 25.1189 14.1 25.7040 14.2 26.3027 14.3 26.9153 14.4 27.5423 14.5 28.1838 14.6 28.8403 14.7 29.5121 14.8 30.1995 14.9 30.9030 15.0 31.6228 15.1 32.3594 15.2 33.1131 15.3 33.8844 15.4 34.6737 15.5 35.4813 15.6 36.3078 15.7 37.1535 15.8 38.0189 15.9 38.9045 16.0 39.8107 16.1 40.7380 16.2 41.6869 16.3 42.6580 16.4 43.6516 16.5 44.6684 16.6 45.7088 16.7 46.7735 16.8 47.8630 16.9 48.9779 17.0 50.1187 17.1 51.2861 17.2 52.4807 17.3 53.7032 17.4 54.9541 17.5 56.2341 17.6 57.5440 17.7 58.8844 17.8 60.2560 17.9 61.6595 18.0 63.0957 18.1 64.5654 18.2 66.0693 18.3 67.6083 18.4 69.1831 18.5 70.7946 18.6 72.4436 18.7 74.1310 18.8 75.8578 18.9 77.6247 19.0 79.4328 19.1 81.2831 19.2 83.1764 19.3 85.1138 19.4 87.0964 19.5 89.1251 19.6 91.2011 19.7 93.3254 19.8 95.4993 19.9 97.7237 20.0 100.0000 20.1 102.3293 20.2 104.7129 20.3 107.1519 20.4 109.6478 20.5 112.2018 20.6 114.8154 20.7 117.4898 20.8 120.2264 20.9 123.0269 21.0 125.8925 21.1 128.8250 21.2 131.8257 21.3 134.8963 21.4 138.0384 21.5 141.2538 21.6 144.5440 21.7 147.9108 21.8 151.3561 21.9 154.8817 22.0 158.4893 22.1 162.1810 22.2 165.9587 22.3 169.8244 22.4 173.7801 22.5 177.8279 22.6 181.9701 22.7 186.2087 22.8 190.5461 22.9 194.9845 23.0 199.5262 23.1 204.1738 23.2 208.9296 23.3 213.7962 23.4 218.7762 23.5 223.8721 23.6 229.0868 23.7 234.4229 23.8 239.8833 23.9 245.4709 24.0 251.1886 24.1 257.0396 24.2 263.0268 24.3 269.1535 24.4 275.4229 24.5 281.8383 24.6 288.4032 24.7 295.1209 24.8 301.9952 24.9 309.0295 25.0 316.2278 25.1 323.5937 25.2 331.1311 25.3 338.8442 25.4 346.7369 25.5 354.8134 25.6 363.0781 25.7 371.5352 25.8 380.1894 25.9 389.0451 26.0 398.1072 26.1 407.3803 26.2 416.8694 26.3 426.5795 26.4 436.5158 26.5 446.6836 26.6 457.0882 26.7 467.7351 26.8 478.6301 26.9 489.7788 27.0 501.1872 27.1 512.8614 27.2 524.8075 27.3 537.0318 27.4 549.5409 27.5 562.3413 27.6 575.4399 27.7 588.8437 27.8 602.5596 27.9 616.5950 28.0 630.9573 28.1 645.6542 28.2 660.6934 28.3 676.0830 28.4 691.8310 28.5 707.9458 28.6 724.4360 28.7 741.3102 28.8 758.5776 28.9 776.2471 29.0 794.3282 29.1 812.8305 29.2 831.7638 29.3 851.1380 29.4 870.9636 29.5 891.2509 29.6 912.0108 29.7 933.2543 29.8 954.9926 29.9 977.2372 30 1000.000 31 1258.925 32 1584.893 33 1995.262 34 2511.886 35 3162.278 36 3981.072 37 5011.872 38 6309.573 39 7943.282 40 10000.00 41 12589.25 42 15848.93 43 19952.62 44 25118.86 45 31622.78 46 39810.72 47 50118.72 48 63095.73 49 79432.82