ETSI EN 302 372-1 V1.1.1 (2006-01)

Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Equipment for Detection and Movement; Tanks Level Probing Radar (TLPR) operating in the frequency bands 5,8 GHz, 10 GHz, 25 GHz, 61 GHz and 77 GHz; Part 1: Technical characteristics and test methods

DEN/ERM-TGTLPR-0113-1

Elektromagnetna združljivost in zadeve v zvezi z radijskim spektrom (ERM) – Naprave kratkega dosega (SRD) – Oprema za odkrivanje in premikanje – Radar za sondiranje nivoja v rezervoarjih (TLPR), ki deluje v frekvenčnih pasovih 5,8 GHz, 10 GHz, 25 GHz, 61 GHz in 77 GHz – 1. del: Tehnične karakteristike in preskusne metode

General Information

• Status: Published
• Publication Date: 02-Apr-2006
• Technical Committee: ERM TGTLPR - Tank Level Probing Radar
• Current Stage: 12 - Completion
• Due Date: 10-Apr-2006
• Completion Date: 03-Apr-2006
• Ref Project: SIST EN 302 372-1 V1.1.1:2006 - Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices (SRD); Equipment for Detection and Movement; Tanks Level Probing Radar (TLPR) operating in the frequency bands 5,8 GHz, 10 GHz, 25 GHz, 61 GHz and 77 GHz; Part 1: Technical characteristics and test methods

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 302 372-1 V1.1.1:2006
01-julij-2006
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1DSUDYHNUDWNHJDGRVHJD65'±2SUHPD]DRGNULYDQMHLQSUHPLNDQMH±5DGDU]D
VRQGLUDQMHQLYRMDYUH]HUYRDUMLK7/35NLGHOXMHYIUHNYHQþQLKSDVRYLK*+]
*+]*+]*+]LQ*+]±GHO7HKQLþQHNDUDNWHULVWLNHLQSUHVNXVQH
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Electromagnetic compatibility and Radio spectrum Matters (ERM); Short Range Devices
(SRD); Equipment for Detection and Movement; Tanks Level Probing Radar (TLPR)
operating in the frequency bands 5,8 GHz, 10 GHz, 25 GHz, 61 GHz and 77 GHz; Part
1: Technical characteristics and test methods
Ta slovenski standard je istoveten z: EN 302 372-1 Version 1.1.1
ICS:
33.060.20 Sprejemna in oddajna Receiving and transmitting
oprema equipment
33.100.01 Elektromagnetna združljivost Electromagnetic compatibility
na splošno in general
SIST EN 302 372-1 V1.1.1:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 302 372-1 V1.1.1:2006

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SIST EN 302 372-1 V1.1.1:2006

ETSI EN 302 372-1 V1.1.1 (2006-04)
European Standard (Telecommunications series)

Electromagnetic compatibility
and Radio spectrum Matters (ERM);
Short Range Devices (SRD);
Equipment for Detection and Movement;
Tanks Level Probing Radar (TLPR) operating in the
frequency bands 5,8 GHz, 10 GHz, 25 GHz, 61 GHz and 77 GHz;
Part 1: Technical characteristics and test methods

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SIST EN 302 372-1 V1.1.1:2006
 2 ETSI EN 302 372-1 V1.1.1 (2006-04)



Reference
DEN/ERM-TGTLPR-0113-1
Keywords
EHF, radar, regulation, SHF, short range, SRD,
testing, UWB
ETSI
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ETSI

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SIST EN 302 372-1 V1.1.1:2006
 3 ETSI EN 302 372-1 V1.1.1 (2006-04)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope.6
2 References.6
3 Definitions, symbols and abbreviations .7
3.1 Definitions.7
3.2 Symbols.8
3.3 Abbreviations.8
4 Technical requirements specifications.9
4.1 Presentation of equipment for testing purposes.9
4.2 Choice of model for testing .9
4.3 Mechanical and electrical design.9
4.3.1 Marking (equipment identification).9
4.3.1.1 Equipment identification.9
4.4 Auxiliary test equipment .9
4.5 General requirements for RF cables .10
4.6 Interpretation of the measurement results .10
4.6.1 Measurement uncertainty is equal to or less than maximum acceptable uncertainty.10
4.6.2 Measurement uncertainty is greater than maximum acceptable uncertainty.10
5 Test conditions, power sources and ambient temperatures .11
5.1 Normal and extreme test conditions .11
5.2 External test power source.11
5.3 Normal test conditions.11
5.3.1 Normal temperature and humidity.11
5.3.2 Normal test power source .11
5.3.2.1 Mains voltage.11
5.3.2.2 Regulated lead-acid battery power source.12
5.3.2.3 Other power sources.12
5.4 Extreme test conditions .12
5.4.1 Extreme temperatures.12
5.4.1.1 Procedure for tests at extreme temperatures.12
5.4.1.2 Extreme temperature ranges.12
5.4.2 Extreme test source voltages.12
5.4.2.1 Mains voltage.12
5.4.2.2 Regulated lead-acid battery power source.12
5.4.2.3 Other power sources.12
6 General conditions.13
6.1 Radiated measurement arrangements.13
6.2 Measuring receiver.13
7 Measurement uncertainty.13
8 Methods of measurement and limits.14
8.1 Frequency band of operation.14
8.1.1 Definition.14
8.1.2 Method of measurement.14
8.1.3 Limits.15
8.2 Duty cycle.15
8.2.1 Duty cycle resulting from application.15
8.2.2 Duty cycle resulting from modulation .16
8.2.2.1 Method of measurement.16
8.3 Equivalent isotropically radiated power (e.i.r.p.) .16
8.3.1 Definition.16
ETSI

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SIST EN 302 372-1 V1.1.1:2006
 4 ETSI EN 302 372-1 V1.1.1 (2006-04)
8.3.2 Method of measurement.16
8.3.3 Limits.18
8.4 Emissions.18
8.4.1 Definition.18
8.4.2 Method of measurement.18
8.4.3 Limits.20
Annex A (normative): Radiated measurement.21
A.1 Test sites and general arrangements for measurements involving the use of radiated fields.21
A.1.1 Anechoic Chamber.21
A.1.2 Anechoic Chamber with a conductive ground plane.22
A.1.3 Open Area Test Site (OATS) .23
A.1.4 Test antenna.24
A.1.5 Substitution antenna.24
A.1.6 Measuring antenna.25
A.2 Guidance on the use of radiation test sites .25
A.2.1 Verification of the test site .25
A.2.2 Preparation of the EUT.25
A.2.3 Power supplies to the EUT.25
A.2.4 Range length.25
A.2.5 Site preparation.26
A.3 Coupling of signals.27
A.3.1 General.27
Annex B (normative): Installation requirements of Tank Level Probing Radar (TLPR)
Equipment .28
Annex C (informative): Measurement antenna and preamplifier specifications .29
Annex D (informative): Electromagnetic leakage from a EUT.30
D.1 General.30
D.2 Survey of sources of leakage.30
Annex E (normative): Requirements on Test Tank.32
Annex F (informative): Practical test distances for accurate measurements .33
F.1 Introduction.33
F.2 Conventional near-field measurements distance limit .33
F.3 Near-field conditions outside a test tank .33
History .34

ETSI

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SIST EN 302 372-1 V1.1.1:2006
 5 ETSI EN 302 372-1 V1.1.1 (2006-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee
Electromagnetic compatibility and Radio spectrum Matters (ERM).
For non-EU countries, the present document may be used for regulatory (Type Approval) purposes.
The present document is part 1 of a multi-part deliverable covering Electromagnetic compatibility and Radio spectrum
Matters (ERM); Short Range Devices (SRD); Equipment for Detection and Movement; Tanks Level Probing Radar
(TLPR) operating in the frequency bands 5,8 GHz, 10 GHz, 25 GHz, 61 GHz and 77 GHz, as identified below:
Part 1: "Technical characteristics and test methods";
Part 2: "Harmonized EN under article 3.2 of the R&TTE Directive".

National transposition dates
Date of adoption of this EN: 24 March 2006
Date of latest announcement of this EN (doa): 30 June 2006
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 December 2006
Date of withdrawal of any conflicting National Standard (dow): 31 December 2006

ETSI

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SIST EN 302 372-1 V1.1.1:2006
 6 ETSI EN 302 372-1 V1.1.1 (2006-04)
1 Scope
The present document specifies the requirements for Tank Level Probing Radar (TLPR) applications based on pulse RF,
FMCW, or similar wideband techniques, operating in the following frequency bands or part hereof:
• 4,5 GHz to 7 GHz;
• 8,5 GHz to 10,6 GHz;
• 24,05 GHz to 27 GHz;
• 57 GHz to 64 GHz;
• 75 GHz to 85 GHz.
TLPRs are used for tank level measurement applications.
The scope is limited to TLPRs operating as Short Range Devices, in which the devices are installed in closed metallic
tanks or reinforced concrete tanks, or similar enclosure structures made of comparable attenuating material, holding a
substance, liquid or powder.
The radar applications in the present document are not intended for communications purposes. Their intended usage
excludes any intended radiation into free space.
The present document applies to TLPRs radiating RF signals directly from the tank top downwards to the surface of a
substance contained in a closed tank. Any radiation outside of the tank is caused by leakage and is considered as
unintentional emission. It applies only to TLPRs fitted with dedicated antennas. The present document does not
necessarily include all the characteristics, which may be required by a user, nor does it necessarily represent the
optimum performance achievable.
The present document contains the technical characteristics and test methods for TLPR applications and references
CEPT/ERC Recommendation for SRDs, CEPT/ERC/Recommendation 70-03 [1].
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] CEPT/ERC/Recommendation 70-03: "Relating to the use of Short Range Devices (SRD)".
[2] CISPR 16: "Specification for radio disturbance and immunity measuring apparatus and methods".
[3] ETSI TR 102 215: "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Recommended approach, and possible limits for measurement uncertainty for the measurement of
radiated electromagnetic fields above 1 GHz".
[4] ANSI C63.5 (2004): "American National Standard for Electromagnetic Compatibility-Radiated
Emission Measurements in Electromagnetic Interference (EMI) Control-Calibration of Antennas
(9 kHz to 40 GHz)".
ETSI

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SIST EN 302 372-1 V1.1.1:2006
 7 ETSI EN 302 372-1 V1.1.1 (2006-04)
[5] ETSI TR 102 273 (all parts): "Electromagnetic compatibility and Radio spectrum Matters (ERM);
Improvement on Radiated Methods of Measurement (using test site) and evaluation of the
corresponding measurement uncertainties".
[6] ETSI EN 302 372-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Short
Range Devices (SRD); Equipment for Detection and Movement; Tanks Level Probing Radar
(TLPR) operating in the frequency bands 5,8 GHz, 10 GHz, 25 GHz, 61 GHz and 77 GHz; Part 2:
Harmonized EN under article 3.2 of the R&TTE Directive".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
dedicated antenna: antenna that is designed as an indispensable part of the equipment
Device Under Test (DUT): TLPR under test without a test tank
duty cycle: ratio of the total on time of the transmitter to the total time in any one-hour period reflecting normal
operational mode
emissions: signals that leaked or are scattered into the air within the frequency range (that includes harmonics) which
depend on equipment's frequency band of operation
NOTE: For TLPRs there is no intended emission outside the tank.
Equipment Under Test (EUT): TLPR under test mounted on a test tank
equivalent isotropically radiated power (e.i.r.p.): total power transmitted, assuming an isotropic radiator
NOTE: e.i.r.p. is conventionally the product of "power into the antenna" and "antenna gain". e.i.r.p. is used for
both peak and average power.
Frequency Modulated Continuous Wave (FMCW) radar: radar where the transmitter power is fairly constant but
possibly zero during periods giving a big duty cycle (such as 0,1 to 1)
NOTE: The frequency is modulated in some way giving a very wideband spectrum with a power versus time
variation which is clearly not pulsed.
integral antenna: permanent fixed antenna, which may be built-in, designed as an indispensable part of the equipment
operating frequency (operating centre frequency): nominal frequency at which equipment is operated
pulsed radar (or here simply "pulsed TLPR"): radar where the transmitter signal has a microwave power consisting
of short RF pulses
power spectral density (psd): amount of the total power inside the measuring receiver bandwidth
expressed in dBm/MHz
Pulse Repetition Frequency (PRF): inverse of the Pulse Repetition Interval, averaged over a sufficiently long time to
cover all PRF variations
radiated measurements: measurements that involve the absolute measurement of a radiated field
radiation: signals emitted intentionally inside a tank for level measurements
ETSI

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SIST EN 302 372-1 V1.1.1:2006
 8 ETSI EN 302 372-1 V1.1.1 (2006-04)
3.2 Symbols
For the purposes of the present document, the following symbols apply:
f Frequency
f Frequency at which the emission is the peak power at maximum
C
f Highest frequency of the frequency band of operation
H
f Lowest frequency of the frequency band of operation
L
t Time
k Boltzmann constant
T Temperature
G Efficient antenna gain of radiating structure
G Declared measurement antenna gain
a
d Largest dimension of the antenna aperture of the TLPR
d Largest dimension of the DUT/dipole after substitution (m)
1
d Largest dimension of the test antenna (m)
2
D Duty cycle
D Duty cycle determined by the users transmission time
U
D Duty cycle determined by the transmitters modulation type
X
P Output power of the signal generator measured by power meter
s
Δf Bandwidth
X Minimum radial distance (m) between the DUT and the test antenna
λ Wavelength
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
dB deciBel
dBi antenna gain in deciBels relative to an isotropic antenna
DUT Device Under Test
e.i.r.p. equivalent isotropically radiated power
EMC ElectroMagnetic Compatibility
ERC European Radiocommunication Committee
EUT Equipment Under Test
FMCW Frequency Modulated Continuous Wave
LNA Low Noise Amplifier
OATS Open Area Test Site
ppm parts per million
PRF Pulse Repetition Frequency
PSD Power Spectral Density
R&TTE Radio and Telecommunications Terminal Equipment
RBW Resolution BandWidth
RF Radio Frequency
SA Spectrum Analyser
SRD Short Range Device
TLPR Tank Level Probing Radar
Tx Transmitter
VBW Video BandWidth
VSWR Voltage Standing Wave Ratio
ETSI

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SIST EN 302 372-1 V1.1.1:2006
 9 ETSI EN 302 372-1 V1.1.1 (2006-04)
4 Technical requirements specifications
4.1 Presentation of equipment for testing purposes
Equipment submitted for testing, where applicable, shall fulfil the requirements of the present document on all
frequencies over which it is intended to operate.
The provider shall submit one or more samples of the equipment as appropriate for testing.
Additionally, technical documentation and operating manuals, sufficient to allow testing to be performed, shall be
supplied.
The performance of the equipment submitted for testing shall be representative of the performance of the corresponding
production model. In order to avoid any ambiguity in that assessment, the present document contains instructions for the
presentation of equipment for testing purposes (clause 4), conditions of testing (clauses 5 and 6) and the measurement
methods (clause 8).
The provider shall offer equipment complete with any auxiliary equipment needed for testing. The provider shall also
submit a suitable test tank, as described in annex E.
The provider shall declare the frequency range(s), the range of operation conditions and power requirements, as
applicable, in order to establish the appropriate test conditions.
4.2 Choice of model for testing
If an equipment has several optional features, considered not to affect the RF parameters then the tests need only to be
performed on the equipment configured with that combination of features considered to create the highest unintentional
emissions outside the tank structure.
In addition, when a device has the capability of using different dedicated antennas, tank connections or other features
that affect the RF parameters, at least the worst combination of features from an emission point of view as agreed
between the provider and the test laboratory shall be tested.
The choice of model(s) for testing shall be recorded in the test report.
4.3 Mechanical and electrical design
The equipment submitted by the provider shall be designed, constructed and manufactured in accordance with good
engineering practice and with the aim of minimizing harmful interference to other equipment and services.
4.3.1 Marking (equipment identification)
The equipment shall be marked in a visible place. This marking shall be legible and durable. Where this is not possible
due to physical constraints, the marking shall be included in the user's manual.
4.3.1.1 Equipment identification
The marking shall include as a minimum:
• the name of the manufacturer or his trademark;
• the type designation.
4.4 Auxiliary test equipment
All necessary test signal sources, set-up information, and the test tank shall accompany the equipment when it is
submitted for testing.
ETSI

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SIST EN 302 372-1 V1.1.1:2006
 10 ETSI EN 302 372-1 V1.1.1 (2006-04)
4.5 General requirements for RF cables
Due to the low power levels involved in the measurements, all RF cables including their connectors at both ends used
within the measurement arrangements and set-ups shall be of coaxial or waveguide type featuring within the frequency
range they are used:
• a nominal characteristic impedance of 50 Ω;
• a VSWR of less than 1,2 at either end;
• a shielding loss in excess of 60 dB.
4.6 Interpretation of the measurement results
The interpretation of the results recorded on the appropriate test report for the measurements described in the present
document shall be as follows:
• the m
...