ST Electronics Pte Ltd LB200 Manuel D’Utilisation
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LB200
C-Band Microwave Motion Sensor Module
User Manual
V1.0
1. Introduction
LB200 microwave motion sensor is a C-Band Bi-Static Doppler transceiver module that
makes use of Doppler Effect Principle to detect motion. These modules are designed for
movement detection, like intruder alarms, occupancy modules and other innovative ideas.
The module consists of Coaxial Resonator Oscillator (CRO), microwave mixer and Dipole
antenna (see Diagram A).
This User Manual highlights some important points when designing-in LB200 module.
2. Mounting
Terminal Pins can be used to connect the terminals (+5V, IF, GND) to amplifier circuits as well as mounting support. Other
mounting methods may be used.
Wave-soldering the module onto PCBA is possible but processes have to be evaluated to prevent deterioration. No-cleaning
process is recommended.
Caution must be taken to avoid applying pressure or stresses to the chassis of the module as it may cause performance
deterioration.
3. Power Supply
The module operates at +5 Vdc for Continious wave (CW) operation.
4. Radiation Pattern
.
Diagram A: Block Diagram
Terminal Pin
The module to be mounted with the Dipole antennas facing the desired detection
zone.
The user may adjust the orientation of the module to get the best coverage.
The radiation patterns of the antenna are shown in the diagram on the right.
LB200 Radiation Pattern