SIST EN 302 264-1 V1.1.1:2009

SLOVENSKI STANDARD
SIST EN 302 264-1 V1.1.1:2009
01-september-2009
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Electromagnetic compatibility and Radio spectrum Matters (ERM) - Short Range Devices

operating in the 77 GHz to 81 GHz band - Part 1: Technical requirements and methods

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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Intellectual Property Rights ................................................................................................................................ 5

Foreword ............................................................................................................................................................. 5

1 Scope ........................................................................................................................................................ 6

2 References ................................................................................................................................................ 6

2.1 Normative references ......................................................................................................................................... 6

2.2 Informative references ........................................................................................................................................ 7

3 Definitions, symbols and abbreviations ................................................................................................... 7

3.1 Definitions .......................................................................................................................................................... 7

3.2 Symbols .............................................................................................................................................................. 8

3.3 Abbreviations ..................................................................................................................................................... 9

4 Technical requirements specifications ................................................................................................... 10

4.1 Presentation of equipment for testing purposes ................................................................................................ 10

4.1.1 Choice of model for testing ........................................................................................................................ 10

4.2 Mechanical and electrical design ...................................................................................................................... 10

4.3 Auxiliary test equipment .................................................................................................................................. 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 Other power sources .............................................................................................................................. 11

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 Other power sources .............................................................................................................................. 12

6 General conditions .................................................................................................................................. 12

6.1 Test fixture ....................................................................................................................................................... 13

6.1.1 Requirements .............................................................................................................................................. 13

6.1.2 Calibration .................................................................................................................................................. 13

6.1.3 General requirements for RF cables and waveguides ................................................................................. 14

6.1.4 Shielded anechoic chamber......................................................................................................................... 15

7 Methods of measurement and limits for transmitter parameters ............................................................ 16

7.1 Methods of measurement and limits for transmitters in 77 GHz to 81 GHz band............................................ 16

7.1.1 Permitted range of operating frequencies ................................................................................................... 16

7.1.1.1 Definition .............................................................................................................................................. 16

7.1.1.2 Method of measurement ........................................................................................................................ 16

7.1.1.3 Limits .................................................................................................................................................... 17

7.1.2 Maximum radiated average power spectral density (e.i.r.p.) ...................................................................... 17

7.1.2.1 Definition .............................................................................................................................................. 17

7.1.2.2 Method of measurement ........................................................................................................................ 17

7.1.2.3 Limits .................................................................................................................................................... 18

7.1.3 Maximum radiated peak power (e.i.r.p.) ..................................................................................................... 18

7.1.3.1 Definition .............................................................................................................................................. 18

7.1.3.2 Method of measurement ........................................................................................................................ 18

7.1.3.3 Limits .................................................................................................................................................... 19

7.2 Maximum radiated spurious and out-of-band emissions .................................................................................. 19

7.2.1 Definition .................................................................................................................................................... 19

7.2.2 Measuring receiver ..................................................................................................................................... 19

7.2.3 Method of measurement for radiated spurious or out-of-band emissions ................................................... 20

7.2.4 Limits .......................................................................................................................................................... 20

8 Methods of measurement and limits for receiver parameters ................................................................. 21

8.1 Receiver spurious emissions............................................................................................................................. 21

8.1.1 Definition .................................................................................................................................................... 21

8.1.2 Method of measurement - radiated spurious emissions .............................................................................. 21

8.1.3 Limit ........................................................................................................................................................... 21

9 Interpretation of measurement results .................................................................................................... 22

9.1 Measurement uncertainty is equal to or less than maximum acceptable uncertainty ....................................... 22

9.2 Measurement uncertainty is greater than maximum acceptable uncertainty .................................................... 23

Annex A (normative): Radiated measurements ................................................................................ 24

A.1 Test sites and general arrangements for measurements involving the use of radiated fields ................. 24

A.2 Guidance on the use of radiation test sites ............................................................................................. 24

A.2.1 Substitution antenna ......................................................................................................................................... 24

A.3 Indoor test site using a fully anechoic RF chamber ............................................................................... 24

A.3.1 Example of the construction of a shielded anechoic chamber .......................................................................... 25

A.3.2 Influence of parasitic reflections in anechoic chambers ................................................................................... 26

A.3.3 Calibration of the shielded RF anechoic chamber ............................................................................................ 27

Annex B (normative): General description of measurement methods ............................................ 28

B.1 Radiated measurements .......................................................................................................................... 28

Annex C (informative): Example of modulation schemes................................................................... 29

C.1 Pseudo Noise Pulse Position Modulation (PN PPM) ............................................................................. 29

C.1.1 Definition ......................................................................................................................................................... 29

C.1.2 Typical operation parameters ........................................................................................................................... 30

C.2 Pulsed FH (Pulsed Frequency hopping) ................................................................................................. 30

C.2.1 Definition ......................................................................................................................................................... 30

C.2.2 Typical operation parameters ........................................................................................................................... 31

C.2.3 Additional requirements for pulsed FH equipment measurement .................................................................... 31

C.2.3.1 Pulsed FH modulation ................................................................................................................................ 31

C.2.3.2 Measurement requirements ......................................................................................................................... 31

C.3 PN-ASK (Pseudo noise coded amplitude shift keying) ......................................................................... 32

C.3.1 Definition ......................................................................................................................................................... 32

C.3.2 Typical operation parameters ........................................................................................................................... 33

C.4 PN-PSK (Pseudo noise coded phase shift keying) ................................................................................. 33

C.4.1 Definition ......................................................................................................................................................... 33

C.4.2 Typical operation parameters ........................................................................................................................... 34

C.5 Frequency modulated continuous wave ................................................................................................. 34

C.5.1 Definition ......................................................................................................................................................... 34

C.5.2 Typical operating parameters ........................................................................................................................... 35

C.6 Combination of modulation types .......................................................................................................... 35

systems ............................................................................................................ 36

Annex E (informative): Conversion of power spectral density to e.i.r.p. .......................................... 37

E.1 Assumptions ........................................................................................................................................... 37

E.2 Example .................................................................................................................................................. 37

Annex F (informative): Bibliography ................................................................................................... 38

History .............................................................................................................................................................. 39

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pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found

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can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web

This European Standard (Telecommunications series) has been produced by ETSI Technical Committee

For non EU countries the present document may be used for regulatory (Type Approval) purposes.

Equipment compliant with the present document is intended for fitment into road vehicles, therefore it is subject to

automotive EMC type approval and has to comply with Commission Directive 2004/104/EC [i.4]. For use on vehicles

outside the scope of Commission Directive 2004/104/EC [i.4] compliance with an EMC directive/standard appropriate

The present document is part 1 of a multi-part deliverable covering Electromagnetic compatibility and Radio spectrum

Matters (ERM); Short Range Devices; Road Transport and Traffic Telematics (RTTT); Short Range Radar equipment

Part 2: "Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive".

The present document specifies the technical requirements and methods of measurement for Short Range Devices

(SRD) working as broadband devices with at least 50 MHz occupied bandwidth in the 77 GHz to 81 GHz frequency

range, hereinafter referred to as the 79 GHz range, intended for Road Transport and Traffic Telematics (RTTT)

applications. Applications include e.g. Short Range Radar (SRR) for obstacle detection, stop&go, blind spot detection,

parking aid, backup aid, precrash and other automotive applications. Applications that might interfere with automotive

The present document covers transmitters intended to operate in the frequency range as defined in the EC decision

• contains the technical characteristics and test methods for short range radar equipment fitted with integral

• covers short range radar vehicle applications in the 79 GHz range. It covers integrated transceivers and

References are either specific (identified by date of publication and/or edition number or version number) or

• Non-specific reference may be made only to a complete document or a part thereof and only in the following

- if it is accepted that it will be possible to use all future changes of the referenced document for the

Referenced documents which are not found to be publicly available in the expected location might be found at

NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee

The following referenced documents are indispensable for the application of the present document. For dated

references, only the edition cited applies. For non-specific references, the latest edition of the referenced document

[1] CISPR 16 (2006) (parts 1-1, 1-4 and 1-5): "Specification for radio disturbance and immunity

measuring apparatus and methods; Part 1: Radio disturbance and immunity measuring apparatus".

[2] 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

[3] ETSI TR 100 028 (V1.4.1) (all parts): "Electromagnetic compatibility and Radio spectrum Matters

(ERM); Uncertainties in the measurement of mobile radio equipment characteristics".

The following referenced documents are not essential to the use of the present document but they assist the user with

regard to a particular subject area. For non-specific references, the latest version of the referenced document (including

[i.1] ECC decision ECC/DEC/(04)03 of 19 March 2004 on the frequency band 77 - 81 GHz to be

[i.2] EC decision 2004/545/EC of 8 July 2004 on the harmonization of radio spectrum in the 79 GHz

[i.3] Radio Regulations: "International Telecommunication Union, Edition of 2004".

[i.4] Commission Directive 2004/104/EC of 14 October 2004 adapting to technical progress Council

Directive 72/245/EEC relating to the radio interference (electromagnetic compatibility) of vehicles

and amending Directive 70/156/EEC on the approximation of the laws of the Member States

[i.5] ETSI EN 302 264-2: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Short

Range Devices; Road Transport and Traffic Telematics (RTTT); Short Range Radar equipment

operating in the 77 GHz to 81 GHz band; Part 2: Harmonized EN covering the essential

For the purposes of the present document, the following terms and definitions apply:

activity factor: actual on-the-air time divided by active session time or actual on-the-air emission time within a given

associated antenna: antenna and all its associated components which are designed as an indispensable part of the

blanking period: time period where either no waveform or a constant waveform within the 79 GHz range occurs

channel dwell time: accumulated amount of transmission time of uninterrupted continuous transmission within a single

duty cycle: ratio of the total on time of the "message" to the total off-time in any one hour period

NOTE: The device may be triggered either automatically or manually and depending on how the device is

triggered will also depend on whether the duty cycle is fixed or random. The duty cycle is categorized in

Equipment Under Test (EUT): radar sensor including the integrated antenna together with any external antenna

equivalent isotropically radiated power (e.i.r.p.): total power or power spectral density transmitted, assuming an

NOTE: e.i.r.p. is conventionally the product of "power or power spectral density into the antenna" and "antenna

gain". e.i.r.p. is used for both peak or average power and peak or average power spectral density.

equivalent pulse power duration: duration of an ideal rectangular pulse which has the same content of energy

compared with the pulse shape of the EUT with pulsed modulation or on-off gating

on-off gating: methods of transmission with fixed or randomly quiescent period that is much larger than the PRF

operating frequency (operating centre frequency): nominal frequency at which equipment is operated

operating frequency range: range of operating frequencies over which the equipment can be adjusted through

NOTE 1: For pulsed or phase shifting systems without further carrier tuning the operating frequency range is fixed

NOTE 2: For analogue or discrete frequency modulated systems (FSK, FMCW) the operating frequency range

covers the difference between minimum and maximum of all carrier frequencies on which the equipment

peak envelope power: mean power (round mean square for sinusoidal carrier wave type) supplied from the antenna

during one radio frequency cycle at the crest of the modulation envelope taken under normal operating conditions (see

Power Spectral Density (PSD): ratio of the amount of power to the used radio measurement bandwidth

NOTE: It is expressed in units of dBm/Hz or as a power in unit dBm with respect to the used bandwidth.

In case of measurement with a spectrum analyser the measurement bandwidth is equal the RBW.

Pulse Repetition Frequency (PRF): inverse of the Pulse Repetition Interval, averaged over a time sufficiently long as