EN 62810:2015
(Main)Cylindrical cavity method to measure the complex permittivity of low-loss dielectric rods
Cylindrical cavity method to measure the complex permittivity of low-loss dielectric rods
IEC 62810:2015(E) relates to a measurement method for complex permittivity of a dielectric rod at microwave frequency. This method has been developed to evaluate the dielectric properties of low-loss materials in coaxial cables and electronic devices used in microwave systems. It uses the TM010 mode in a circular cylindrical cavity and presents accurate measurement results of a dielectric rod sample, where the effect of sample insertion holes is taken into account accurately on the basis of the rigorous electromagnetic analysis.
Zylindrisches Hohlraumverfahren zur Messung der komplexen Permittivität von verlustarmen dielektrischen Stäben
Mesure de la permitivité complexe des barreaux diélectriques à faibles pertes par la méthode de la cavité cylindrique
L'IEC 62810:2015 traite d’une méthode de mesure de la permittivité complexe d'un barreau diélectrique en hyperfréquence. La présente méthode a été développée pour évaluer les propriétés diélectriques des matériaux à faibles pertes dans les câbles coaxiaux et les dispositifs électroniques utilisés dans les systèmes à hyperfréquences. Elle utilise le mode TM010 dans une cavité cylindrique circulaire et présente des résultats de mesure précis d'un échantillon de barreau diélectrique, pour lequel l'effet des trous d'insertion de l’échantillon est pris en compte avec précision, en se fondant sur l'analyse électromagnétique rigoureuse.
Metoda s valjasto votlino za merjenje kompleksne permitivnosti (dielektrične konstante) nizkoizgubnih dielektričnih palic (IEC 62810:2015)
Ta mednarodni standard se nanaša na metodo za merjenje kompleksne permitivnosti dielektrične palice pri mikrovalovni frekvenci. Ta metoda je bila razvita za oceno dielektričnih lastnosti nizkoizgubnih materialov v koaksialnih kablih in elektronskih napravah, ki se uporabljajo v mikrovalovnih sistemih. Uporablja način TM010 v krožni valjasti votlini in predstavlja točne merilne rezultate vzorca dielektrične palice, pri čemer se učinek vstavitvenih lukenj v vzorcu točno upošteva na podlagi stroge elektromagnetne analize. V primerjavi z običajno metodo iz standarda IEC 60556 [2]1 ima ta metoda naslednje značilnosti:
• vrednosti relativne permitivnosti εr in izgubnega faktorja tanδ vzorca dielektrične palice je mogoče izmeriti točno in neporušitveno;
• merilna točnost je v območju 1,0 % za ε ' in znotraj 20 % za tand;
• učinek vstavitvenih lukenj v vzorcu se popravi z uporabo predstavljenih korekcijskih tabel;
• ta metoda se uporablja za meritve pod naslednjim pogojem:
– frekvenca: 1 GHz ≦ f ≦ 10 GHz;
– relativna permitivnost: 1 ≦ε ' ≦100;
– izgubni faktor: 10–4 ≦tand ≦10–1.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2015
0HWRGDVYDOMDVWRYRWOLQR]DPHUMHQMHNRPSOHNVQHSHUPLWLYQRVWL GLHOHNWULþQH
NRQVWDQWH QL]NRL]JXEQLKGLHOHNWULþQLKSDOLF ,(&
Cylindrical cavity method to measure the complex permittivity of low-loss dielectric rods
(IEC 62810:2015)
Zylindrisches Hohlraumverfahren zur Messung der komplexen Permittivität von
verlustarmen dielektrischen Stäben (IEC 62810:2015)
Mesure de la permitivité complexe des barreaux diélectriques à faibles pertes par la
méthode de la cavité cylindrique (IEC 62810:2015)
Ta slovenski standard je istoveten z: EN 62810:2015
ICS:
33.120.30 5DGLRIUHNYHQþQLNRQHNWRUML R.F. connectors
5)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 62810
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2015
ICS 33.120.30
English Version
Cylindrical cavity method to measure the complex permittivity of
low-loss dielectric rods
(IEC 62810:2015)
Mesure de la permitivité complexe des barreaux Zylindrisches Hohlraumverfahren zur Messung der
diélectriques à faibles pertes par la méthode komplexen Permittivität von verlustarmen
de la cavité cylindrique dielektrischen Stäben
(IEC 62810:2015) (IEC 62810:2015)
This European Standard was approved by CENELEC on 2015-03-24. CENELEC members 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 application to the CEN-CENELEC
Management Centre 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
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© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62810:2015 E
Foreword
The text of document 46F/242/CDV, future edition 1 of IEC 62810, prepared by SC 46F, "R.F. and
microwave passive components", of IEC TC 46, "Cables, wires, waveguides, R.F. connectors, R.F. and
microwave passive components and accessories" was submitted to the IEC-CENELEC parallel vote and
approved by CENELEC as EN 62810:2015.
The following dates are fixed:
(dop) 2015-12-24
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2018-03-24
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 62810:2015 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60556 NOTE Harmonised as EN 60556.
IEC 62810 ®
Edition 1.0 2015-02
INTERNATIONAL
STANDARD
colour
inside
Cylindrical cavity method to measure the complex permittivity of low-loss
dielectric rods
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.120.30 ISBN 978-2-8322-2264-5
– 2 – IEC 62810:2015 © IEC 2015
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Measurement parameters . 5
4 Theory and calculation equations . 5
5 Measurement system . 12
6 Measurement procedure . 14
6.1 Preparation of measurement apparatus. 14
6.2 Measurement of reference level . 14
6.3 Measurement of cavity parameters: σ . 14
r
6.4 Measurement of complex permittivity of test sample: ε', tan d. 15
Annex A (informative) Example of measurement results and accuracy . 16
A.1 Measurement of ε' and tand values . 16
A.2 Measurement uncertainty of ε' and tand . 17
Bibliography . 19
Figure 1 – Structure of a cylindrical cavity resonator . 6
Figure 2 – Correction factor C for ε’. 7
Figure 3 – Correction factor C for tand with the different values of d . 9
2 1
Figure 4 – Schematic diagram of measurement systems . 13
Figure 5 – Resonance frequency f , insertion attenuation IA and half-power band
0 0
width f . 14
BW
Figure 6 – Frequency responses of the TM mode of cylindrical cavity . 15
Table 1 – Numerical values of correction factor C . 8
Table 2 – Numerical values of correction factor C . 10
Table 3 – Numerical values of correction factor C . 11
Table A.1 – The parameters of the cavity and the rod sample . 16
Table A.2 – The resonant frequencies and unloaded Q-factors . 16
Table A.3 – The approximate values and the relative conductivity value . 16
Table A.4 – Correction factors and the measurement results . 16
Table A.5 – The measurement uncertainty of ε’ . 17
Table A.6 – The measurement uncertainty of tand . 18
IEC 62810:2015 © IEC 2015 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CYLINDRICAL CAVITY METHOD TO MEASURE
THE COMPLEX PERMITTIVITY OF LOW-LOSS DIELECTRIC RODS
FOREWORD
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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62810 has been prepared by subcommittee 46F: R.F. and
microwave passive components, of IEC technical committee 46: Cables, wires, waveguides,
R.F. connectors, R.F. and microwave passive components and accessories.
The text of this standard is based on the following documents:
CDV Report on voting
46F/242/CDV 46F/260/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
– 4 – IEC 62810:2015 © IEC 2015
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
IEC 62810:2015 © IEC 2015 – 5 –
CYLINDRICAL CAVITY METHOD TO MEASURE
THE COMPLEX PERMITTIVITY OF LOW-LOSS DIELECTRIC RODS
1 Scope
This International Standard relates to a measurement method for complex permittivity of a
dielectric rod at microwave frequency. This method has been developed to evaluate the
dielectric properties of low-loss materials in coaxial cables and electronic devices used in
microwave systems. It uses the TM mode in a circular cylindrical cavity and presents
accurate measurement results of a dielectric rod sample, where the effect of sample insertion
holes is taken into account accurately on the basis of the rigorous electromagnetic analysis.
In comparison with the conventional method described in IEC 60556 [2] , this method has the
following characteristics:
• the values of the relative permittivity ε' and loss tangent tand of a dielectric rod sample
can be measured accurately and non-destructively;
• the measurement accuracy is within 1,0 % for ε' and within 20 % for tand;
• the effect of sample insertion holes is corrected using correction charts presented;
• this method is applicable for the measurements on the following condition:
– frequency: 1 GHz ≦f ≦10 GHz;
– relative permittivity: 1 ≦ε' ≦100;
–4 –1
– loss tangent: 10 ≦tand ≦10 .
2 Normative references
Void
...
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