HD 123.3 S1:1977

SLOVENSKI SIST HD 123.3 S1:2002
prva izdaja
STANDARD
september 2002
Hollow metallic waveguides - Part 3: Relevant specifications for flat rectangular
waveguides
ICS 33.120.10 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

NORME CEI
INTERNATIONALE IEC
60153 -3
INTERNATIONAL
Première édition
STANDARD
First edition
1964-01
Guides d'ondes métalliques creux
Troisième partie:
Spécifications particulières pour les guides
d'ondes rectangulaires plats
Hollow metallic waveguides
Part 3:
Relevant specifications for flat rectangular
waveguides
© IEC 1964 Droits de reproduction réservés — Copyright - all rights reserved
Aucune partie
de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée
sous quelque forme que ce soit et par aucun any form or by any means, electronic or mechanical,
procédé, électronique ou mécanique,
y compris la photo- including photocopying and microfilm, without permission in
copie et les
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http: //www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
F
PRICE CODE
International Electrotechnical Commission
IEC
Mens/tempo/mas] 3neKrporexHHVecnaR KoMHCCHa
Pour prix, voir catalogue en vigueur
• • For price, see current catalogue

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
HOLLOW METALLIC WAVEGUIDES
Part 3: Relevant specifications for flat rectangular waveguides
FOREWORD
1) The formal decisions or agreement of the I E C on technical matters, prepared by Technical Committees on which all the
National Committees having a special interest therein are represented, express, as nearly as possible, an international
consensus of opinion on the subjects dealt with.
2) They have the form of recommendations for international use and they are accepted by the National Committees in
that sense.
3) In order to promote this international unification, the I E C expresses the wish that all National Committees having as
yet no national rules, when preparing such rules, should use the I E C recommendations as the fundamental basis for
these rules in so far as national conditions will permit.
4) The desirability is recognized of extending international agreement on these matters through an endeavour to harmonize
national standardization rules with these recommendations in so far as national conditions will permit. The National
Committees pledge their influence towards that end.
5) The I E C has not laid down any procedure concerning marking as an indication of approval and has no responsibility
when an item of equipment is declared to comply with one of its recommendations.
PREFACE
This publication was prepared by Sub-Committee 46B, Waveguides and their Accessories, of Tech-
nical Committee No. 46, Cables, Wires and Waveguides for Telecommunication Equipment.
It contains Part 3, Relevant Specifications for Flat Rectan gular Wave g uides, of the complete I E C
Recommendation for hollow metallic waveguides, and it is intended to be used in conjunction with
Part 1, General Requirements and Measuring Methods, which is issued as I E C Publication 153-1.
The relevant specification for ordinary rectangular waveguides is issued as I E C Publication 153-2
and the relevant specification for circular waveguides is issued as I E C Publication 153-4.
The general outline of the Recommendation was first discussed in Paris in November 1956. A draft
was prepared which was considered in Stockholm in 1957. Successive revised drafts were then prepared
and discussed during the meetings held in London in 1958, in Ulm in 1959 and in Copenhagen in 1960. As
a result of the latter meeting, a draft was submitted to the National Committees for approval under the
Six Months' Rule, in September 1960.
Four unfavourable votes were received and several countries submitted comments which were con-
sidered during the mee ting held at Interlaken in 1961.

Amendments adopted during the latter meeting were submitted to all National Committees for
approval under the Two Months' Procedure in May 1962.
Some editorial comments were discussed and accepted at the meeting held in Bucharest in 1962.
The followin g countries voted explicity in favour of publication of Part 3 :
Belgium Norway
Czechoslovakia Poland
Denmark Romania
Finland Sweden
France Switzerland
Germany United Kingdom
Italy United States of America
Japan Yugoslavia
Netherlands
It should be noted that no recommendations are made for the materials to be used for waveguides.
The choice of material must be agreed between customer and manufacturer.

HOLLOW METALLIC WAVEGUIDES
Part 3: Relevant specifications for flat rectangular waveguides
TYPE F
RECTANGULAR FLAT WAVEGUIDES
Clause No.
of I E C
Item
Publication
153-1
1 General
Standardized types
The series of rectangular flat waveguides covered by this publication are shown in
Table I.
1.2 Type designation
For these waveguides the type designation comprises :
a) The code: 153 IEC-F
A number characterizing a particular size of waveguide. This number expresses
b)
approximately in multiples of 100 MHz (Mc/s) the geometric mean frequency of
the recommended frequency range.
Frequency range
The frequency range indicated in Table I is from 1.25 to 1.9 times the cut-off frequency
in the dominant mode. For any particular type of application the working frequency
range may be smaller or greater than the frequency range given in the table.
2. Mechanical requirements
2.1 Dimensions
2.1.3.1 Inside dimensions
The nominal values and the tolerances are specified in Table I.
The tolerances both on width and height, are : 1 of the nominal value of the
width.
2.1.3.2 Wall thickness
The nominal values are specified in Table I.
2.1.3.3 Eccentricity
The eccentricity shall not exceed 10 % of the nominal wall thickness.

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