User's Manual

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DF100-0

K-Band Doppler RF Transceiver Module

Users Manual

1. Introduction

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

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.

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.

Pin definition

1: ENABLE

2: +5V typical

3: GROUND

4: I

5: Q

6: NOT IN USE

Figure 2: Pin definition and mounting holes

Mounting

holes

size M2.5,

depth 3.5 mm

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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.
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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.
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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.