BS EN 61830-1998 Microwave ferrite components - Measuring methods for major properties《微波铁氧体元件 主要性能的测量方法》.pdf
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1、BRITISH STANDARD BS EN 61830:1998 IEC 61830: 1997 Microwave ferrite components Measuring methods for major properties The European Standard EN 61830:1998 has the status of a British Standard ICS 29.100.10BSEN61830:1998 This British Standard, having been prepared under the directionof the Electrotech
2、nical Sector Board, was published underthe authority of the Standards Board and comes into effect on 15 April 1998 BSI 04-1999 ISBN 0 580 29289 4 National foreword This British Standard is the English language version of EN61830:1998. It is identical with IEC61830:1997. The UK participation in its p
3、reparation was entrusted to Technical Committee EPL/51, Transformers, inductors, magnetic components and ferrite materials, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or propo
4、sals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 600
5、00 added to the old number. For instance, IEC 27-1 has been renumbered as IEC60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC stand
6、ards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under th
7、e section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applic
8、ation. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 10 and a back cover. This standard has been updated (see copyright date) a
9、nd may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSEN61830:1998 BSI 04-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 61830 3ii blankEUROPEAN ST
10、ANDARD NORME EUROPENNE EUROPISCHE NORM EN 61830 February 1998 ICS 29.100.10 Descriptors: Microwave ferrite components, major microwave properties, measuring methods, return loss, forward loss, reverse loss, phase-shift, group-delay English version Microwave ferrite components Measuring methods for m
11、ajor properties (IEC 61830:1997) Composants ferrites pour hyperfrquences Mthodes de mesure des principales proprits (CEI 61830:1997) Mikrowellenferritbauelemente Meverfahren fr die Hauptmikrowelleneigenschaften (IEC 61830:1997) This European Standard was approved by CENELEC on 1998-01-01. CENELEC me
12、mbers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on applica
13、tion to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat
14、 has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdo
15、m. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form and by any means reserved w
16、orldwide for CENELEC members. Ref. No. EN 61830:1998 EEN61830:1998 BSI 04-1999 2 Foreword The text of document 51/486/FDIS, future edition 1 of IEC61830, prepared by IEC TC 51, Magnetic components and ferrite materials, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN
17、61830 on1998-01-01. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Endorsement notice The text of the International Standard IEC61830:1997 was approved by CENELEC as a E
18、uropean Standard without any modification. Contents Page Foreword 2 1 Scope 3 2 Normative reference 3 3 Return loss 3 3.1 The relationship between impedance, return loss, reflection coefficient and voltage standing wave ratio (VSWR) 3 3.2 Method of measurement of return loss 3 3.3 General considerat
19、ions of the measuring equipment 3 3.4 Measuring procedure 4 3.5 Presentation of results 4 3.6 Detail to be specified 4 4 Forward loss and reverse loss 4 4.1 Definition and general considerations 4 4.2 Method of measurement 4 4.3 General considerations of the measuring equipment 4 4.4 Measuring proce
20、dure 5 4.5 Presentation of results 5 5 Phase-shift and group-delay 5 5.1 Definition and general considerations 5 5.2 Method of measurement 6 5.3 Presentation of results 6 Annex ZA (normative) Normative references to international publications with their corresponding European publications 10 Figure
21、1 Arrangement of equipment for measuring return loss 7 Figure 2 Example of oscilloscope display of return loss 7 Figure 3 Arrangement of equipment for measuring forward loss and reverse loss 8 Figure 4 Example of oscilloscope display of forward loss and reverse loss 8 Figure 5 Arrangement of equipme
22、nt for measuring phase-shift and group-delay 9 Figure 6 Example of oscilloscope display of phase-shift and group-delay 9 latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1998-10-01 latest date by which the na
23、tional standards conflicting with the EN have to be withdrawn (dow) 1998-10-01EN61830:1998 BSI 04-1999 3 1 Scope This International Standard gives guidance on the measuring methods for major microwave properties, such as return loss, forward loss, reverse loss, phase shift and group delay, of microw
24、ave ferrite components. NOTE 1The methods of measurement are compiled after the model of IEC60510-1-3. NOTE 2Network analyzers are being used by most manufacturers to evaluate such properties of microwave ferrite components at present. However, knowledge of basic measuring methods is necessary for u
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