SIST EN 61580-4:1999

Methods of measurement for waveguides -- Part 4: Attenuation of waveguide and waveguide assemblies

Is applicable to attenuation of wavegides and waveguides assemblies. The objective of the given test procedures is to characterize the attenuation.

Meßverfahren für Hohlleiter -- Teil 4: Dämpfung von Hohlleitern und Hohlleiterbauteilen

Méthodes de mesure appliquées aux guides d'ondes -- Partie 4: Atténuation des guides d'ondes et des ensembles de guides d'ondes

Est applicable à l'atténuation des guides d'ondes et des ensembles de guides d'ondes. L'objectif de ces procédures d'essai est de caractériser cette atténuation.

Methods of measurement for waveguides - Part 4: Attenuation of waveguide and waveguide assemblies (IEC 61580-4:1997)

General Information

• Status: Published
• Publication Date: 30-Apr-1999
• ICS: 33.120.10 - Coaxial cables. Waveguides
• Technical Committee: iTEL - Communication cables
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-May-1999
• Due Date: 01-May-1999
• Completion Date: 01-May-1999
• Ref Project: EN 61580-4:1998 - Methods of measurement for waveguides - Part 4: Attenuation of waveguide and waveguide assemblies

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61580-4:1999
01-maj-1999
Methods of measurement for waveguides - Part 4: Attenuation of waveguide and
waveguide assemblies (IEC 61580-4:1997)
Methods of measurement for waveguides -- Part 4: Attenuation of waveguide and
waveguide assemblies
Meßverfahren für Hohlleiter -- Teil 4: Dämpfung von Hohlleitern und Hohlleiterbauteilen
Méthodes de mesure appliquées aux guides d'ondes -- Partie 4: Atténuation des guides
d'ondes et des ensembles de guides d'ondes
Ta slovenski standard je istoveten z: EN 61580-4:1998
ICS:
33.120.10 Koaksialni kabli. Valovodi Coaxial cables. Waveguides
SIST EN 61580-4:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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NORME
CEI
INTERNATIONALE
IEC
61580-4
INTERNATIONAL
Première édition
STANDARD
First edition
1997-08
Méthodes de mesure appliquées
aux guides d’ondes –
Partie 4:
Atténuation des guides d’ondes
et des ensembles de guides d’ondes
Methods of measurement for waveguides –
Part 4:
Attenuation of waveguide and
waveguide assemblies
 IEC 1997 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.
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Pour prix, voir catalogue en vigueur
For price, see current catalogue

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61580-4 © IEC:1997 – 3 –
CONTENTS
Page
FOREWORD . 5
Clause
1 Scope and object. 7
2 General . 7
3 Test equipment. 7
3.1 Method 1 . 9
3.2 Method 2 . 11
3.3 Method 3 . 13
3.4 Test set-up for method 4. 15
4 Procedure. 17
4.1 Method 1 . 17
4.2 Method 2 . 17
4.3 Method 3 . 17
4.4 Method 4 . 17
5 Accuracy . 19
5.1 Measurement accuracy with network analysers . 19
6 Requirements . 19

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61580-4 © IEC:1997 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_________

METHODS OF MEASUREMENT FOR WAVEGUIDES –

Part 4: Attenuation of waveguide and
waveguide assemblies



FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61580-4 has been prepared by subcommittee 46B: Waveguides and
their accessories, of IEC technical committee 46: Cables, wires, waveguides, R.F. connectors
and accessories for communication and signalling.
The text of this standard is based on the following documents:
FDIS Report on voting
46B/225/FDIS 46B/228/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
The contents of the corrigendum of July 2006 have been included in this copy.

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61580-4 © IEC:1997 – 7 –
METHODS OF MEASUREMENT FOR WAVEGUIDES –
Part 4: Attenuation of waveguide and
waveguide assemblies
1 Scope and object
This part of IEC 61580 is applicable to attenuation of waveguides and waveguides assemblies.
The objective of the test procedures given below is to characterize the attenuation.
2 General
The swept frequency method may be used to determine the attenuation.
The conditions for attenuation measurements on waveguides are characterized by access to
only one end or a very low loss to be measured or else by both together.
Four methods are presented hereinafter in order to cover each case:
Method 1: insertion method using swept frequency. It is used for general purposes.
Method 2: reflection method using swept frequency. It is used when only one end is available
but there may be some limitations on the insertion loss values that may be measured.
Method 3: reflection method using discrete frequencies. It is used when low attenuation is to
be measured and where one end only is available.
Method 4: uses an automatic network analyser. The use of an automatic network analyser
requires that, for measurement on long lengths of waveguide, particular attention must be
given to the number of frequencies and the frequency sweep rate selected. Care must be taken
to ensure that any sharp "peaks" or "troughs" in the amplitude response are not effectively
smoothed out to produce an erroneous result.
3 Test equipment
Suitable test set-ups are shown in figures 1, 2 and 3. Other equivalent set-ups can be used by
agreement between customer and supplier.
a) Sweep RF generator: the sweep rate should be s
...