ST Electronics DF300-0 Microwave Motion Sensor Module User Manual

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Document ID	1049014
Application ID	5Q1Mh8Fu1ZhPGNwxnTnTtA==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	61.4kB (767549 bits)
Date Submitted	2008-12-23 00:00:00
Date Available	2009-02-06 00:00:00
Creation Date	0000-00-00 00:00:00
Document Lastmod	0000-00-00 00:00:00
Document Title	Users Manual
Document Creator	Hewlett Packard MFP

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1. Introduction
DF300-0 series of microwave motion sensor modules
are K-Band Bi—static DRO Doppler transceiver front-
end module These modules are designed for speed
detection with direction of motion recognition, traffic
applications and other innovative ideas.
The module consists of Dielectric
balanced mixers,
antenna, built-in LNA for high sensitivity and a pre-
Oscillator (DRO),
amplifier (see Figure A).
Resonator
and patch
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DF300-0
K-Band Doppler RF Transceiver Module
Users Manual
Figure A: Block Diagram
2. User interface and mountin-
6-way 2.54 mm pin header is used for user interface and the four mounting holes of M3 screw
size are as shown in Figure 2
Pin definition
1: ENABLE
2: +5V typical
3: GROUND
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Figure 2: Pin definition and mounting holes
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Mounting
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3. Power Su -Iy
The recommended power supply is 5V, The minimum input voltage is 3.5 V and the maximum
is 9 V. As there is a built—in voltage regulation in DF300-0 sensor module, fluctuation in the
power supply will not affect the performance of the module
A. Usin - ENABLE in 1
When this pin is driven LOW (GND), this will activate the DRO and hence transmit the signali
On the other hand, when it is driven HIGH (typically +5V), the DRO will be de—activated. This
feature can be used to reduce power consumption by introducing pulse to this pin.
5. Radiation Pattern
The module to be mounted with the antenna patches facing to the desired detection zone. The
user may vary the orientation of the module to get the best coverage. The radiation patterns of
the antenna and their 3dB beamwidth are shown in below diagram
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Figure 3: Beam pattern of DFSOO-O
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6. Output Si . nals
Doppler shift - Doppler-shift signals of ideally 90° phase difference between them appears at
I & Q channels when movement is detected. These signals are pre-amplified by built—in IF
amplifiers for better sensitivity and better isolation. The magnitude of the Doppler Shift after
these amplifications is typically within 1mV peak to peak. Frequency of Doppler shift is
proportional to velocity of motion
The magnitude of RF signal received by the Doppler-based transceiver depends on the
detection distance and the Radar Cross Section (ROS) of the detected objects.
The lagging/leading phase difference between I and Q signals provides information on the
direction of motion (whether approaching or receding)
8. Radiation Safe A
Microwave radiation from the module is well below established safety standards for general
public environment, like ANSI C95.1-1991 of USA and NRPB-G11 of United Kingdom.
The module has been fully tested to specifications. Opening, tightening or loosening the
chassis may result in performance deterioration.
The module is an electrostatic sensitive device (ESD). Precautions shall be observed for
handling and assembly.
10. Product Supo .
Please contact our product support engineers in the factory for technical assistance whenever
necessary.
Product Support (Microwave Sensors)
Tel: (65) 568 7414
Fax: (65) 567 6370
e-mail: agilsense@stee.stengg.com
This device complies with part15 of FCC Rules.
Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may cause undesired operation.
Any changes or modifications to ST Electronics equipment not expressly approved by ST Electronics could void
the user authority to operate the equipment
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Creator                         : Hewlett Packard MFP
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