BS-9220-N002-1971.pdf

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1、BRITISH STANDARD BS 9220 N002:1971 Detail specification for medium flat rectangular (4 : 1) rigid waveguide tubing Standard wall thickness General application category UDC 621.372.822 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncon

2、trolled Copy, (c) BSI BS 9220 N002:1971 BSI 03-2000 ISBN 0 580 06571 5 A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer imm

3、unity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on t

4、he inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N002:1971 BSI 03-2000i Contents Page 1Ratings (including limiting conditio

5、ns of use) and characteristics1 2Marking2 3Related documents2 4Ordering information2 5Certified test records2 6Test schedule2 Table 1 Dimensions for medium flat rectangular waveguides5 Table 2 Surface roughness in micrometres and micro-inches6 Table 3 Weight data for medium flat rectangular waveguid

6、e Type M6 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 92

7、20 N002:1971 BSI 03-20001 1 Ratings (including limiting conditions of use) and characteristics. See Table 1. 1.1 Ratio between inside width and height. The standard ratio of inside width to inside height is in principle 4 : 1. For some types of waveguides given in this specification this ratio has n

8、ot been observed because a different value of the ratio was already in extensive use. 1.2 Deviation on inside width and height. Deviations for the inside width and heights are in principle 1/1000 of the internal width. 1.3 Theoretical attenuation. The values given in the tables are based on a figure

9、 for the resistivity of copper equivalent to 1.7241 1087 m and apply to a frequency equal to 1.5fc. For the general case attenuation is given by the following formula: in which = resistivity of inside non-magnetic wall metal, o= resistivity of copper = 1.7241 1087 m, a = inside width in millimetres,

10、 b = inside height in millimetres, fc= cut off frequency for Hol (TEol) mode =GHz, f = frequency at which the attenuation is to be calculated. ELECTRONIC PART OF ASSESSED QUALITY: DETAIL SPECIFICATION MEDIUM FLAT RECTANGULAR WAVEGUIDE (4 : 1) STANDARD WALL THICKNESS GENERAL APPLICATION CATEGORY M22

11、TO M 100 MATERIALS: CLASSES 1 TO 4 149.9 a - - Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N002:1971 2 BSI 03-2000 For other materials multiply the values quoted by the factor given in the following

12、 table: 2 Marking The marking shall be in accordance with 1.1.6 of BS 9220. 3 Related documents BS 9220, Rigid waveguide tubing of assessed quality: Generic data and methods of test. BS 2871, Schedule of copper and copper alloys. Tubes. BS 1471, Wrought aluminium and aluminium alloys for general eng

13、ineering purposes. Drawn tube. BS 3839, Oxygen-free high conductivity copper for electronic valves and semi-conductor devices. 4 Ordering information Orders for waveguides conforming to the requirements of this specification shall contain the following information, in accordance with the requirement

14、s of 1.1.15 of BS 9220. 1) BS number of this detail specification. 2) Reference code (see 1.1.6.2 of BS 9220:1971). 3) Piece length. 5 Certified test records The CTR, as issued at 6-monthly intervals, will contain attributes information for all subgroup A2 tests. In addition, the CTR will contain me

15、asurements information for all Group D tests. 6 Test schedule The sample size for the Group D inspection of each class of material shall be one tube, 1 m (3 ft 3 in) long, selected at random for each of the approval ranges of sizes listed below: Ranges of sizes Range 1. M22 to M45 Range 2. M48 to M1

16、00 Classes of materials Class 1. Aluminium or aluminium alloys containing not less than 95 % aluminium. Class 2. Copper zinc alloys containing between 1 % and 35 % zinc. MaterialCode letterResistivity 7 m ( 10 8)Factor Aluminium to BS 1471 T1C Aluminium alloy to BS 1471 HT4 Aluminium alloy to BS 147

17、1 HT6 Aluminium alloy to BS 1471 HT9 Aluminium alloy to BS 1471 HT15 Aluminium alloy to BS 1471 HT20 Aluminium alloy to BS 1471 HT30 A B C D E F G 2.8 3.0 4.6 4.9 6.4 6.5 3.3 3.5 4.8 5.0 4.0 4.3 3.4 3.8 1.275 1.320 1.635 1.685 1.930 1.945 1.380 1.425 1.670 1.705 1.525 1.580 1.405 1.490 Brass to BS 2

18、871 CZ101 Brass to BS 2871 CZ105 Copper to BS 2871 C101 or C102 Copper to BS 2871 C103 Copper to BS 2871 C106 Copper to BS 3839 Silver (92.5 % silver 7.5 % copper) H J K L M N S (Annealed) 3.90 6.2 1.724 1.737 1.724 2.436 1.724 1.80 (Drawn) 4.3 7.8 1.777 1.777 1.777 2.538 1.777 (Annealed) 1.505 1.89

19、5 1.000 1.002 1.000 1.190 1.000 1.020 (Drawn) 1.580 2.130 1.015 1.015 1.015 1.213 1.015 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N002:1971 BSI 03-20003 Class 3. Copper with not more than 1 % of o

20、ther materials. Class 4. Silver or silver copper alloys containing more than 87 % silver. Inspection requirements InspectionBS 9220:1971 reference and conditions of testRequirements Group A(To be applied on a sampling basis lot-by-lot) Subgroups A1, A3 and A4 are not applicable Non-destructive tests

21、 Subgroup A0 Visual inspection Dimensions Eccentricity Material verification 1.2.2 1.2.3.1 1.2.3.2 1.2.5.2 100 % inspection (Excluding corner radii) at each end of the waveguide length At each end of the waveguide length As in 1.2.2 of BS 9220 As in Table 1 As in Table 1 Confirm that correct materia

22、l from those listed under Classes 1 to 4 in 1.1.6.2 (4) of BS 9220 has been used Subgroup A2 Dimensions Bow Twist Shape of cross section Internal finish 1.2.3.1 1.2.3.3 1.2.3.4 1.2.3.5 1.2.5.1 Inspection level S-2 AQL 2.5 % Corner radii only at each end Any 600 mm (2 ft) of stock length Any 300 mm (

23、1 ft) run of stock length Accumulated twist per stock length May be assessed by measurement of manufacturers tool As in Table 1 Edgewise bow: 0.25 mm (0.01 in) Flatwise bow: 0.5 mm (0.02 in) May not exceed 0.5 May not exceed 3 As in 1.2.3.5 of BS 9220 As in Table 2 Subgroup A5 CTR informationAttribu

24、tes information for subgroup A2 GROUPS B AND CNo tests required Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N002:1971 4 BSI 03-2000 Inspection requirements InspectionBS 9220:1971 reference and condi

25、tions of testRequirements Group D(To be applied on a sampling basis at three-yearly intervals) Subgroups D2, D3, D4 and D5 are not applicable Subgroup D1 Visual inspectiona Bowa Twista Dimensions Eccentricity Shape of cross section Internal finisha Material verificationa 1.2.2 1.2.3.3 1.2.3.4 1.2.3.

26、1 1.2.3.2 1.2.3.5 1.2.5.1 1.2.5.2 Any 600 mm (2 ft) of stock length Any 300 mm (1 ft) run of stock length Accumulated twist per stock length (Including corner radii) at each end of waveguide length and at intermediate points along the length At each end of waveguide length and at intermediate points

27、 along the length At each end of waveguide length and at intermediate points along the length Destructive tests As in 1.2.2 of BS 9220 Edgewise bow: 0.25 mm (0.01 in) Flatwise bow: 0.05 mm (0.02 in) May not exceed 0.5 May not exceed 3 As in Table 1 As in Table 1 As in 1.2.3.5 of BS 9220 As in Table

28、2 Confirm that correct material from those listed under Classes 1 to 4 in 1.1.6.2 (4) of BS 9220 has been used Subgroup D6 CTR informationMeasurements information for all Group D tests a Measurements from Group A tests may be used. Licensed Copy: London South Bank University, London South Bank Unive

29、rsity, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N002:1971 BSI 03-20005 Table 1 Dimensions for medium flat rectangular waveguides Type designation Frequency range for dominant modea Inside cross sectionOutside cross section Eccentricity Nominal width a Nominal height b D

30、eviation on width and height Maximum radius of corner r1 Nominal wall thickness ta Nominal width a1 Nominal height b1 Deviation on width and height Radius of corner r2 Theoretical attenuation at 1.5fc for coppera Peak power ratinga Preferred stock length FromToMinimum Maximum GHzGHzmmmmmmmmmmmmmmmmm

31、mmmmmdB/mMWmm 50 Dimensions in millimetres M14 M22 M26 M32 M40 M45 M48 M58 M70 M100 1.14 1.72 2.17 2.60 3.22 3.70 3.94 4.64 5.38 8.20 1.73 2.61 3.30 3.95 4.90 5.61 5.99 7.05 8.17 12.50 165.10 109.22 86.360 72.140 58.170 50.800 47.550 40.390 34.850 22.860 41.28 27.30 21.600 18.000 14.500 16.942 11.90

32、0 10.100 8.700 5.000 0.20 0.11 0.086 0.072 0.058 0.064 0.048 0.040 0.035 0.023 1.2 1.2 1.2 1.2 1.2 0.8 0.8 0.8 0.8 0.8 2.030 2.030 2.030 2.030 1.625 1.58 1.625 1.625 1.625 1.270 169.16 113.28 90.42 76.20 61.42 53.96 50.800 43.640 38.100 25.400 45.35 31.36 25.66 22.06 17.75 20.10 15.150 13.350 11.950

33、 7.540 0.25 0.22 0.17 0.14 0.12 0.15 0.095 0.081 0.070 0.046 1.0 1.0 1.0 1.0 0.8 0.8 0.8 0.8 0.8 0.65 1.5 1.5 1.5 1.5 1.3 1.3 1.3 1.3 1.3 1.15 0.20 0.15 0.15 0.13 0.13 0.10 0.10 0.10 0.076 0.064 0.009 0.0164 0.0233 0.0306 0.0422 0.0430 0.0559 0.0728 0.0854 0.1931 6.75 2.95 1.90 1.28 0.80 0.83 0.56 0

34、.40 0.30 0.11 4 270 4 270 4 270 3 660 3 660 3 050 3 050 3 050 3 050 3 050 Dimensions in inchesinininininininininininin 2 M14 M22 M26 M32 M40 M45 M48 M58 M70 M100 1.14 1.72 2.17 2.60 3.22 3.70 3.94 4.64 5.38 8.20 1.73 2.61 3.30 3.95 4.90 5.61 5.99 7.05 8.17 12.50 6.500 4.3000 3.4000 2.8400 2.2900 2.0

35、000 1.8720 1.5900 1.3720 0.9000 1.625 1.0748 0.8504 0.7087 0.5709 0.6670 0.4685 0.3976 0.3425 0.1969 0.008 0.0043 0.0034 0.0028 0.0023 0.0025 0.0019 0.0016 0.0014 0.0009 0.05 0.05 0.05 0.05 0.05 0.03 0.03 0.03 0.03 0.03 0.080 0.080 0.080 0.080 0.064 0.062 0.064 0.064 0.064 0.050 6.660 4.4600 3.5600

36、3.0000 2.4180 2.124 2.0000 1.7180 1.5000 1.0000 1.785 1.2350 1.0100 0.8690 0.6990 0.791 0.5970 0.5260 0.4710 0.2970 0.010 0.0086 0.0068 0.0057 0.0046 0.006 0.0037 0.0032 0.0027 0.0018 0.04 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.03 0.025 0.06 0.06 0.06 0.06 0.05 0.05 0.05 0.05 0.05 0.045 0.008 0.006 0.

37、006 0.005 0.005 0.004 0.004 0.004 0.003 0.0025 0.009 0.0164 0.0233 0.0306 0.0422 0.0430 0.0559 0.0728 0.0854 0.1931 6.75 2.95 1.90 1.28 0.80 0.83 0.56 0.40 0.30 0.11 168 168 168 144 144 120 120 120 120 120 a Non-mandatory. Licensed Copy: London South Bank University, London South Bank University, Fr

38、i Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N002:1971 6 BSI 03-2000 Table 2 Surface roughness in micrometres and micro-inches Table 3 Weight data for medium flat rectangular waveguide Type M Type designation Material Class 1 Class 2 Class 3Class 4 Brass 70/30Brass 90/10 M14

39、M22 M26 M32 M40 M45 M48 M58 M70 M100 1.600 1.600 1.600 0.762 0.635 0.635 0.635 0.508 0.508 0.432 63 63 63 30 25 25 25 20 20 17 a a a 1.270 1.016 1.016 1.016 0.762 0.762 0.635 a a a 50 40 40 40 30 30 25 1.270 1.270 1.270 1.270 1.016 1.016 1.016 0.762 0.762 0.635 50 50 50 50 40 40 40 30 30 25 0.635 0.

40、635 0.635 0.635 0.508 0.508 0.508 0.457 0.457 0.406 25 25 25 25 20 20 20 18 18 16 a a a a a a a a a a a a a a a a a a a a a For future consideration. Waveguide BS 9220 N002 Weighta kg/mWeighta lb/ft Class 1 Class 2 Class 3Class 4Class 1 Class 2 Class 3Class 4 Brass 70/30 Brass 90/10 Brass 70/30 Bras

41、s 90/10 M14 M22 M26 M32 M40 M45 M48 M58 M70 M100 2.55 1.59 1.26 1.06 0.68 0.617 0.565 0.485 0.420 0.212 7.48 4.87 3.88 3.26 2.08 1.89 1.73 1.48 1.29 0.66 7.75 5.04 4.00 3.36 2.18 1.96 1.80 1.48 1.34 0.68 7.93 5.14 4.07 3.42 2.20 1.99 1.83 1.56 1.36 0.69 9.11 5.90 4.70 3.97 2.54 2.30 2.09 1.80 1.56 0

42、.80 1.71 1.07 0.847 0.713 0.458 0.415 0.38 0.326 0.283 0.143 5.02 3.28 2.60 2.19 1.40 1.27 1.16 0.998 0.870 0.444 5.20 3.39 2.69 2.26 1.46 1.32 1.21 1.03 0.900 0.456 5.32 3.45 2.79 2.30 1.48 1.34 1.23 1.05 0.915 0.463 6.12 3.97 3.16 2.67 1.71 1.55 1.41 1.21 1.05 0.537 a For information only. License

43、d Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 04:34:01 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 9220 N002:1971 BSI 389

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