Test report no. 17010681 Page 1 of 1 EUT: RS4 FCC ID: NBG01RS4 FCC Title 47 CFR Part 15 Date of issue: 2017-01-16 Annex acc. to FCC Title 47 CFR Part 15 relating to Hella KGaA Hueck & Co. RS4 Annex no. 5 User Manual Functional Description Title 47 - Telecommunication Part 15 - Radio Frequency Devices Subpart C Intentional Radiators ANSI C63.4-2014 ANSI C63.10-2013 Date: 2016-08-19 Created: P9 Controlled: P4 Released: P1 Vers. no. 2.16 m. dudde hochfrequenz-technik Rottland 5a D-51429 Bergisch Gladbach/ Germany Tel: +49 2207-96890 Fax +49 2207-968920 Hella KGaA Hueck & Co. 59552 Lippstadt RS4 Radar Sensor Subject:
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Date: 2016-10-12 No.:
Page 1 Author: John Org: E-ED-DAS-DR Enclosures:
Technical Bulletin RS4 Radar Sensor System Function and Purpose The RS4 is an advanced driver assistant system, to warn the driver of the ego vehicle against potential collisions with other road users to the side and/or to the rear of the ego vehicle. This system is not meant to encourage aggressive driving. The absence of a warning will not guarantee the absence of other road users. Responsibility for the safe operation of the vehicle remains with the driver. System Architecture The system consists of two radar sensor units which are mounted behind the rear bumper in the left and right rear corners of a vehicle so that the rear and the sides of the vehicle can be observed. The two units interchange data between each other and the vehicle via the sensor CAN-bus. Both units incorporate an RF part and a microcontroller to perform the radar signal processing. Each unit contains the following RF parts:
one VCO, one transmitter (consisting of power amplifier and antenna) three receivers (each consisting of antenna, mixer, BPF and base-band amplifier). The transmit signal is generated by the VCO. The VCO is frequency modulated by a modulation control circuit and the DSP. A frequency divider is read back the VCO frequency to the DSP and thus to keep it within the frequency band limits. The transmit antenna is a microstrip patch antenna array with 1x8 elements. It is designed to illuminate the rear and the side of the vehicle and is thus a medium gain antenna. The receive antennas are also microstrip patch antennas with a medium gain (1x8 elements). The receivers down-convert the receive signals directly to zero-IF by using the VCO signal. The base-band receive signals are finally digitized by ADCs inside the DSP.
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RS4 Radar Sensor Date: 2016-10-12 No.:
Page 2 of 2 Hella KGaA Hueck & Co. 59552 Lippstadt
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. h c i l u a r t r e V Technical Data Supply voltage Supply current Frequency band 1 Modulation bandwidth Modulation EIRP average EIRP peak Antenna Type Transmit Antenna Gain Operating Temperature Range
+9 V +16.5 V approx.. 0.22 A 24050 MHz ... 24250 MHz
< 200 MHz FMCW
< +12.7 dBmW
< +20 dBmW Microstrip patch array approx.. 9 dBi
-40C ... 85C Signed by:
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