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Waveguide Flange Sizes & Types Reference Comprehensive Technical Data for Engineering & Production. Waveguide Standard Freq (GHz) Type Product Name Dimensions (Inch/mm) Drawing WR28 / WG22 R320 26.5 - 40.0 CBR WF-CBR-28-Flange Size 0.28"x0.14" (7.112x3.556mm) View PBR WF-PBR-28-Flange Size View UBR WF-UBR-28-Flange Size View WR34 / WG21 R260 22.0 - 33.0 UBR WF-UBR-34-Flange Size 0.34"x0.17" (8.636x4.318mm) View CBR WF-CBR-34-Flange Size View WR42 / WG20 R220 18.0 - 26.5 UDR WF-UBR-42-Flange Size 0.42"x0.17" (10.668x4.318mm) View PBR WF-PBR-42-Flange Size View CBR WF-CBR-42-Flange Size View WR51 / WG19 R180 15.0 - 22.0 PDR WF-PDR-51-Flange size 0.51"x0.255" (12.954x6.477mm) View PBR WF-PBR-51-Flange Size View UBR WF-UBR-51-Flange Size View UDR WF-UDR-51-Flange Size View CBR WF-CBR-51-Flange Size View WR62 / WG18 R140 12.4 - 18.0 PDR WF-PDR-62-Flange Size 0.622"x0.311" (15.7988x7.8994mm) View UBR WF-UBR-62-Flange Size View PBR WF-PBR-62-Flange Size View CBR WF-CBR-62-Flange Size View WR90 / WG16 R100 8.20 - 12.4 PDR WF-PDR-90-Flange Size 0.9"x0.4" (22.86x10.16mm) View PBR WF-PBR-90-Flange Size View UBR WF-UBR-90-Flange Size View CBR WF-CBR-90-Flange Size View WR137 / WG14 R70 5.85 - 8.20 UAR WF-UAR-137-Flange Size 1.372"x0.622" (34.8488x15.7988mm) View PAR WF-PAR-137-Flange Size View UDR WF-UDR-137-Flange Size View PDR WF-PDR-137-Flange Size View WR2300 / WG0.0 R3 0.32 - 0.49 UDR WF-UDR-2300-Flange Size 23"x11.5" (584.2x292.1mm) View

Important announcement on the fabrication of Horn Antennas To our beloved customers, FT-RF is always concerned about the environment. In order to ensure quality products and remain environmentally friendly, we have decided to transition the fabrication of our Horn Antennas from Chromium VI to Chromium III. Previous: Gold Color ➜ New: Silvery-White Finish Environmental & Health Fact: While chromium metal and Cr(III) ions are considered non-toxic, hexavalent chromium (Cr(VI)) is toxic and carcinogenic. According to the European Chemicals Agency (ECHA), Chromium Trioxide used in industrial electroplating is a Substance of Very High Concern (SVHC). By adopting Chromium III, FT-RF ensures a safer product for you and a cleaner future for the planet.

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