IEC 61338-1-4:2005

INTERNATIONAL IEC
STANDARD 61338-1-4
First edition
2005-11
Waveguide type dielectric resonators –
Part 1-4:
General information and test conditions –
Measurement method of complex relative
permittivity for dielectric resonator materials
at millimetre-wave frequency
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INTERNATIONAL IEC
STANDARD 61338-1-4
First edition
2005-11
Waveguide type dielectric resonators –
Part 1-4:
General information and test conditions –
Measurement method of complex relative
permittivity for dielectric resonator materials
at millimetre-wave frequency
 IEC 2005  Copyright - all rights reserved
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– 2 – 61338­1­4 ¤ IEC:2005(E)
CONTENTS
FOREWORD.4
1 Scope and object.6
2 Normative references.6
3 Measurement parameter.7
4 Dielectric rod resonator method excited by NRD­guide .8
4.1 Measurement equipment and apparatus .8
4.2 Theory and calculation equations. 11
4.3 Measurement procedure . 16
4.4 Example of measurement result. 19
5 Cut­off waveguide method excited by coaxial cables with small loops . 21
5.1 Measurement equipment and apparatus . 21
5.2 Theory and calculation equations. 23
5.3 Measurement procedure . 28
Annex A (informative)  Errors on H  caused by air gap between dielectric specimen
r
and upper conducting plate . 30
Annex B (informative)  Derivation of equation (15) for V . 31
r
Bibliography. 33
Figure 1 – Schematic diagram of measurement equipment .8
Figure 2 – Measurement apparatus of dielectric rod resonator method  excited by
NRD­guide.9
Figure 3 – Waveguide transducer from NRD­guide to waveguide. 11
Figure 4 – Configuration of a cylindrical dielectric rod resonator short­circuited  at both
ends by two parallel conducting plates. 12
2 2
Figure 5 –Calculations of u  and W  as a function of v   for TE , TE  and TE
011 021 031
resonance modes . 13
Figure 6 –Configuration of reference dielectric resonator  for measurement of V  of
r
conducting plates . 15
Figure 7 – Diameter d of TE , TE  and TE  mode resonators  with resonance
011 021 031
frequency of 60 GHz. 18
Figure 8 – Diameter d of TE , TE  and TE mode resonators  with resonance
011 021 031
frequency of 77 GHz. 19
Figure 9 – Example of TE mode resonant peak . 20
Figure 10 – Measurement result of temperature dependence of f  and  of sapphire. 21
H'
Figure 11 – Measurement apparatus for cut­off waveguide method. 22
Figure 12 – Frequency response for the empty cavity with dimensions of d = 7 mm and
h = 31 mm . 24
Figure 13 – Correction term 'H /H . 26
a
Figure 14 – Correction terms  and . 27
'A/ A 'B / B
61338­1­4 ¤ IEC:2005(E) – 3 –
Figure 15 – Measurement apparatus for temperature coefficient of relative permittivity. 28
Figure 16 – Mode chart of TE  and TE  modes for an empty cavity. 29
011 013
Figure A.1 – Error on  caused by air gap between dielectric specimen  and upper
H'
conducting plates . 30
Table 1 – Diameter of conducting plate. 10
Table 2 – Dimension of dielectric strip of NRD­guide. 10
Table 3 – Dimensions of waveguide transducer . 10
Table 4 – Dimensions of reference sapphire resonators and their partial electric energy
filling factor P  and geometric factor G . 15
e
Table 5 – Diameter d of test specimens for 60 and 77 GHz measurement. Height h is
fixed to 2,25 mm and 1,80 mm for 60 GHz and 77 GHz measurement, respectively . 17
Table 6 – Measurement results of V  of conducting plates. 20
r
Table 7 – Measurement results of H'  and tan G of sapphire and PTFE specimen. 20
Table 8 – Recommended dimensions for conducting cylinder. 23

– 4 – 61338­1­4 ¤ IEC:2005(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WAVEGUIDE TYPE DIELECTRIC RESONATORS –
Part 1­4: General information and test conditions –
Measurement method of complex relative permittivity for
dielectric resonator materials at millimetre­wave frequency
FOREWORD
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International Standard IEC 61338­1­4  has  been prepared  by IEC Technical committee 49:
Piezoelectric and dielectric devices for frequency control and selection.
The text of this standard is based on the following documents:
FDIS Report on voting
49/748/FDIS 49/751/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.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

61338­1­4 ¤ IEC:2005(E) – 5 –
IEC 61338 consists of the following parts, under the general title Waveguide type dielectric
resonators:
Part 1: Generic specification
Part 1­3:   General  information  and  test  conditions   Measurement  method  of  complex
relative permittivity for dielectric resonator materials at microwave frequency
Part 1­4:   General  information  and  test  conditions   Measurement  method  of  complex
relative permittivity for dielectric resonator materials at millimetre­wave frequency
Part 2: Guidelines for oscillator and filter applications
Part 4: Sectional specification
Part 4­1:   Blank detail specification
The committee has decided that the contents of this publication will remain unchanged until
the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in
the data related to the specific publication. At this date, the publication will be
reconfirmed,
withdrawn,
replaced by a revised edition, or
amended.
A bilingual version of this publication may be issued at a later date.

– 6 – 61338­1­4 ¤ IEC:2005(E)
WAVEGUIDE TYPE DIELECTRIC RESONATORS –
Part 1­4: General information and test conditions –
Measurement method of complex relative permittivity for
dielectric resonator materials at millimetre­wave frequency
1  Scope and object
This  part  of  IEC 61338  describes  the  measurement  method  of  dielectric  properties  for
dielectric resonator materials at millimetre­wave frequency.
This standard consists of two measurement methods: a) the dielectric rod resonator method
excited  by  NRD­guide  (Non­Radiative  Dielectric  waveguide)  and  b)  the  cut­off  waveguide
method excited by coaxial cables with small loops.
a)  The dielectric rod resonator method excited by NRD­guide is similar to the dielectric rod
resonator method giv
...