ETSI EN 302 372-1-2011 Electromagnetic compatibility and Radio spectrum Matters (ERM) Short Range Devices (SRD) Equipment for Detection and Movement Tanks Level Probing Radar (TLPR.pdf

1、 ETSI EN 302 372-1 V1.2.1 (2011-02)European Standard Electromagnetic compatibilityand Radio spectrum Matters (ERM);Short Range Devices (SRD);Equipment for Detection and Movement;Tanks Level Probing Radar (TLPR) operating in thefrequency bands 5,8 GHz, 10 GHz,25 GHz, 61 GHz and 77 GHz;Part 1: Technic

2、al characteristics and test methodsETSI ETSI EN 302 372-1 V1.2.1 (2011-02) 2Reference REN/ERM-TGTLPR-0117-1 Keywords EHF, radar, regulation, SHF, short range, SRD, testing, UWB ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N

3、348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in

4、print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat.

5、 Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your

6、comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standard

7、s Institute 2011. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is

8、a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI EN 302 372-1 V1.2.1 (2011-02) 3Contents Intellectual Property Rights 6g3Foreword . 6g31

9、Scope 7g32 References 7g32.1 Normative references . 7g32.2 Informative references 8g33 Definitions, symbols and abbreviations . 8g33.1 Definitions 8g33.2 Symbols 9g33.3 Abbreviations . 9g34 Technical requirements specifications . 10g34.1 Presentation of equipment for testing purposes 10g34.2 Choice

10、of model for testing 10g34.3 Mechanical and electrical design 10g34.3.1 Marking (equipment identification) 11g34.3.1.1 Equipment identification . 11g34.4 Auxiliary test equipment and product information . 11g34.5 General requirements for RF cables . 11g34.6 RF waveguides . 12g34.6.1 Wave Guide Atten

11、uators . 13g34.7 External harmonic mixers 13g34.7.1 Introduction. 13g34.7.2 Signal identification 14g34.7.3 Measurement hints 14g34.8 Preamplifier 14g34.9 Interpretation of the measurement results 15g35 Test conditions, power sources and ambient temperatures 15g35.1 Normal and extreme test condition

12、s . 15g35.2 External test power source 15g35.3 Normal test conditions 15g35.3.1 Normal temperature and humidity 15g35.3.2 Normal test power source . 16g35.3.2.1 Mains voltage 16g35.3.2.2 Regulated lead-acid battery power source . 16g35.3.2.3 Other power sources 16g36 General conditions 16g36.1 Radia

13、ted measurement arrangements . 16g36.2 Measuring receiver . 17g37 Measurement uncertainty . 17g37.1 Conversion loss data and measurement uncertainty . 18g38 Methods of measurement and limits. 19g38.1 Frequency band of operation 19g38.1.1 Definition 19g38.1.2 Method of measurement . 19g38.1.3 Limits

14、20g38.2 Duty cycle 20g38.2.1 Duty cycle resulting from application . 21g38.2.2 Duty cycle resulting from modulation 21g38.2.2.1 Method of measurement 21g38.2.3 Limits 21g38.3 Equivalent isotropically radiated power (e.i.r.p.) . 22g3ETSI ETSI EN 302 372-1 V1.2.1 (2011-02) 48.3.1 Definition 22g38.3.2

15、Method of measurement . 22g38.3.3 Limits 23g38.4 Emissions . 23g38.4.1 Definition 23g38.4.2 Method of measurement . 23g38.4.3 Limits 26g38.5 Range of modulation parameters 26g3Annex A (normative): Radiated measurement 27g3A.1 Test sites and general arrangements for measurements involving the use of

16、radiated fields . 27g3A.1.1 Anechoic Chamber . 27g3A.1.2 Anechoic Chamber with a conductive ground plane 28g3A.1.3 Open Area Test Site (OATS) . 29g3A.1.4 Minimum requirements for test sites for measurements above 18 GHz . 30g3A.1.5 Test antenna 32g3A.1.6 Substitution antenna . 32g3A.1.7 Measuring an

17、tenna . 32g3A.2 Guidance on the use of radiation test sites . 32g3A.2.1 Verification of the test site . 32g3A.2.2 Preparation of the EUT . 33g3A.2.3 Power supplies to the EUT . 33g3A.2.4 Range length . 33g3A.2.5 Site preparation 34g3A.3 Coupling of signals . 34g3A.3.1 General . 34g3Annex B (normativ

18、e): Installation requirements of Tank Level Probing Radar (TLPR) Equipment 35g3Annex C (informative): Measurement antenna and preamplifier specifications . 36g3Annex D (informative): Electromagnetic leakage from a EUT 37g3D.1 General . 37g3D.2 Survey of sources of leakage 37g3Annex E (normative): Re

19、quirements on Test Tank 39g3Annex F (informative): Practical test distances for accurate measurements . 40g3F.1 Introduction 40g3F.2 Conventional near-field measurements distance limit . 40g3F.3 Near-field conditions outside a test tank 40g3Annex G (normative): Range of modulation parameters . 41g3G

20、.1 Pulse modulation 41g3G.1.1 Definition . 41g3G.1.2 Operating parameters . 42g3G.2 Frequency modulated continuous wave . 42g3G.2.1 Definition . 42g3G.2.2 Operating parameters . 43g3ETSI ETSI EN 302 372-1 V1.2.1 (2011-02) 5Annex H (informative): Atmospheric absorptions and material dependent attenua

21、tions . 44g3H.1 Atmospheric absorptions 44g3H.2 Material dependent attenuations . 47g3History 48g3ETSI ETSI EN 302 372-1 V1.2.1 (2011-02) 6Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these

22、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 up

23、dates 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 t

24、he ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This European Standard (EN) 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 re

25、gulatory (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,

26、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 covering the essential requirements of article 3.2 of the R Part 1: Radio disturbance and immunity measuring apparatus“. 2 ETSI TR 100 028 (all parts) (V1.4.1):

27、 “Electromagnetic compatibility and Radio spectrum Matters (ERM); Uncertainties in the measurement of mobile radio equipment characteristics“. 3 ANSI C63.5 (2006): “American National Standard for Calibration of Antennas Used for Radiated Emission Measurements in Electro Magnetic Interference“. ETSI

28、ETSI EN 302 372-1 V1.2.1 (2011-02) 84 ETSI TR 102 273 (all parts) (V1.2.1): “Electromagnetic compatibility and Radio spectrum Matters (ERM); Improvement on Radiated Methods of Measurement (using test site) and evaluation of the corresponding measurement uncertainties“. 5 ETSI EN 302 372-2 (V1.2.1):

29、“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 Expanded me

30、asurement uncertainty for the measurement of radiated electromagnetic fields“. i.4 Commission Decision 2006/771/EC on harmonization of the radio spectrum for use by short range devices as amended by commission decision 2009/381/EC. i.5 ETSI TS 103 052: “Electromagnetic compatibility and Radio spectr

31、um Matters (ERM); Radiated measurement methods and general arrangements for test sites up to 100 GHz“. i.6 ITU-R Recommendation P.676-5 (2001): “Attenuation by atmospheric gases“. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms a

32、nd 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 DU: Activity Factor which is used to describe different modulation parameters and activity levels of TLPR devices and defined as th

33、e ratio of active measurement periods (bursts, sweeps, scans) within the overall repetitive measurement cycle, i.e. Tmeas/Tmeas_cycleduty 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

34、 are scattered into the air within the frequency range (that includes harmonics) which depend on equipments 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

35、 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. ETSI ETSI EN 302 372-1 V1.2.1 (2011-02) 9Frequency Modulated Continuous Wave (FMCW

36、) 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: per

37、manent 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 con

38、sisting 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 meas

39、urements: measurements that involve the absolute measurement of a radiated field radiation: signals emitted intentionally inside a tank for level measurements 3.2 Symbols For the purposes of the present document, the following symbols apply: f Frequency fCFrequency at which the emission is the peak

40、power at maximum fHHighest frequency of the frequency band of operation fL Lowest frequency of the frequency band of operation t Timek Boltzmann constant T TemperatureG Efficient antenna gain of radiating structure Ga Declared measurement antenna gain d Largest dimension of the antenna aperture of t

41、he TLPR d1 Largest dimension of the DUT/dipole after substitution (m) d2 Largest dimension of the test antenna (m) D Duty cycle DU Duty cycle determined by the users transmission time DXDuty cycle determined by the transmitters modulation type Ps Output power of the signal generator measured by powe

42、r meter f Bandwidth X Minimum radial distance (m) between the DUT and the test antenna 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. equ

43、ivalent isotropically radiated power EMC ElectroMagnetic Compatibility ERC European Radiocommunication Committee EUT Equipment Under Test FMCW Frequency Modulated Continuous Wave IF Intermediate Frequency ETSI ETSI EN 302 372-1 V1.2.1 (2011-02) 10LNA Low Noise Amplifier LO Local Oscillator OATS Open

44、 Area Test Site PRF Pulse Repetition Frequency PRI Pulse Repetition Interval PSD Power Spectral Density R the type designation. 4.4 Auxiliary test equipment and product information All necessary set-up information shall accompany the TLPR equipment when it is submitted for testing. The following pro

45、duct information shall be provided by the manufacturer: the type of UWB technology implemented in the TLPR equipment (e.g. FMCW or pulsed); the operating frequency range(s) of the equipment; the intended combination of the TLPR transceiver and its antenna and their corresponding e.i.r.p. levels; the

46、 nominal power supply voltages of the TLPR radio equipment; for FMCW, FH, FSK, stepped frequency hopping or similar carrier based modulation schemes, it is important to describe the modulation parameters in order to ensure that the right settings of the measuring receiver are used. Important paramet

47、ers are the modulation period, deviation or dwell times within a modulation period, rate of modulation (Hz/s); the implementation of features such as gating; for pulsed equipment, the Pulse Repetition Frequency PRF is to be stated. All necessary test signal sources, set-up information, and the test

48、tank shall accompany the equipment when it is submitted for testing. 4.5 General requirements for RF cables 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 u

49、sed: a VSWR of less than 1,2 at either end; a shielding loss in excess of 60 dB. When using coaxial cables for frequencies above 40 GHz attenuation features increase significantly and decrease of return loss due to mismatching caused by joints at RF connectors and impedance errors shall be considered. All RF cables and waveguide interconnects shall be routed suitably in order to reduce impacts on antenna radiation pattern, antenna gain, antenna impedance. Table 2 provides some information about connector systems that can be used in connect