ST Electronics DF100-0 K-Band Doppler RF Transceiver Module User Manual DF100 0

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Document ID	1101113
Application ID	jc+ibXXzaZSetVxHfvQ4yA==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	26.68kB (333477 bits)
Date Submitted	2009-04-23 00:00:00
Date Available	2009-04-23 00:00:00
Creation Date	2009-04-16 09:48:40
Producing Software	GPL Ghostscript 8.15
Document Lastmod	2009-04-16 09:48:40
Document Title	Microsoft Word - DF100-0 User Manual.doc
Document Creator	PScript5.dll Version 5.2
Document Author:	alexc

DF100-0
K-Band Doppler RF Transceiver Module
Users Manual
1. Introduction
DF100-0 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 Resonator Oscillator (DRO), balanced mixers, and patch
antenna, built-in LNA for high sensitivity and a pre-amplifier.
2. User interface and mounting
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
Mounting
holes
size M2.5,
depth 3.5 mm
3: GROUND
4: I
5: Q
6: NOT IN USE
Figure 2: Pin definition and mounting holes
3. Power Supply
The recommended power supply is 5V. The minimum input voltage is 3.6 V and the maximum
is 9 V. As there is a built-in voltage regulation in DF100-0 sensor module, fluctuation in the
power supply will not affect the performance of the module.
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DF100-0
K-Band Doppler RF Transceiver Module
Users Manual
4. Using ENABLE (pin 1)
When this pin is driven LOW (GND), this will activate the DRO and hence transmit the signal.
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.
H-plane
30
330
-5
-10
-15
60
300
-20
-25
-30
90
-5
-10
-15
-20
-25
-35
-30 -35
-30
270
-30
-25
-20
-15
-10
-5
-25
-20
120
240
-15
-10
-5
150
210
180
Azimuth
E-plane
30
330
-5
-10
-15
60
300
-20
-25
-30
90
-5
-10
-15
-20
-25
-35
-30 -35
-30
270
-30
-25
-20
-15
-10
-5
-25
-20
120
240
-15
-10
-5
150
210
180
Figure 3: Beam pattern of DF100-0
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Elevation
DF100-0
K-Band Doppler RF Transceiver Module
Users Manual
6. Output Signals
Doppler shift - Doppler-shift signals of ideally 90o 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 (RCS) 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 Safety
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.
9. Handling
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 Support
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 part 15 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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Producer                        : GPL Ghostscript 8.15
Create Date                     : 2009:04:16 09:48:40
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Title                           : Microsoft Word - DF100-0 User Manual.doc
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