ETSI - EN 301 091-1
Electromagnetic Compatability and Radio Spectrum Matters (ERM); Short Range Devices; Road Transport and Traffic Telematics (RTTT); Radar Equipment Operating in the 76 GHz to 77 Ghz and 24 GHz Range; Part 1: Technical Requirements and Methods of Measurements
| Organization: | ETSI |
| Publication Date: | 1 July 2001 |
| Status: | inactive |
| Page Count: | 50 |
scope:
The present document applies to Short Range Devices (SRDs) transmitters and receivers for RTTT applications;
a) transmitters operating in range from 76 GHz to 77 GHz with peak power levels ranging up to 55 dBm;
b) receivers operating in the range from 76 GHz to 77 GHz;
c) transmitters operating in range from 24,050 GHz to 24,250 GHz with peak power levels ranging up to 20 dBm
d) transmitters operating in range from 22,625 GHz to 24,050 GHz and 24,250 GHz to 25,625 GHz with mean spectral power density levels ranging up to -30 dBm;
The present document contains the technical characteristics for radio equipment and is referencing to CEPT/ERC Recommendation for SRDs CEPT/ERC Recommendation 70-03 [3] and ERC Decisions.
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 applies to:
- low power motion and distance monitoring radars for mobile and fixed applications; operating on radio frequencies in the 76 GHz to 77 GHz band, with mean power densities of up to 0,9 W/m2 at 3 m (50 dBm EIRP), and up to 3 W/m2 peak at 3 m (55 dBm EIRP) for class 1, and mean power densities of up to 0,000 Wm2 at 3 m (24,5 dBm EIRP), and up to 3 W/m2 peak at 3 m (55 dBm EIRP) for class 2.
- ultralow power motion and distance monitoring radars for mobile applications; operating on radio frequencies in the 22,625 GHz to 25,625 GHz band with a maximum spatial mean/peak power density of up to 0,9 mW/m2 at 3 m (20 dBm EIRP) in the 24 GHz SRD band, and with spectral and spatial mean power densities of up to 9 nW/m2 at 3m (-30 dBm EIRP @ 100 kHz RBW, PSD < -80 dBm/Hz) within a range of 2 x 2,5 GHz outside the 24 GHz SRD bank. The present document is based upon ERC/DEC/(92)02 [4]. It is a product standard covering various RTTT applications as well as vehicle based systems as ACC, Stop & Go, Collision Warning or fixed base systems as road traffic monitoring.
The present document is essential in realization of the ITS program of the European Commission Information Society DG, "The EU Approach for Road Safety and Intelligent Transport System(ITS)",[11].
The present document covers radars for mobile applications. It covers integrated transceivers and separate transmit/receiver mobiles.
The present document includes standards for methods of measurement for equipment fitted with integral antennas.
The radio equipment, covered by the classification SRD is divided into several power classes based on maximum output power. The power class designation is based on CEPT/ERC Recommendation 70-03 [3] or ERC Decisions.
On non-harmonized parameters, national administrations may impose conditions on the type of modulation, frequency, channel/frequency separations, maximum transmitter radiated field strength/maximum output current to a defined antenna, duty cycle, equipment marking and the inclusion of an automatic transmitter shut-off facility, as a condition for the issue of an individual or general licence, or as a condition for use under licence exemption.
The present document does not require measurements for radiated emissions below 25 MHz.
Document History
