MDU1100

The Microwave Solutions MDU1100 Motion Detector Unit is an X-Band microwave transceiver that utilises the Doppler shift phenomenon to "sense" motion. The unit, contained in a lightweight plastic housing, features a dielectric resonator stabilised FET oscillator, which provides stable operation over a broad temperature range in either CW or low duty cycle pulse mode and a balanced mixer for enhanced sensitivity and reliability.

£27.50

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Description Additional

Details

The Microwave Solutions MDU1100 Motion Detector Unit is an X-Band microwave transceiver that utilises the Doppler shift phenomenon to "sense" motion.
The unit, contained in a lightweight plastic housing, features a dielectric resonator stabilised FET oscillator, which provides stable operation over a broad temperature range in either CW or low duty cycle pulse mode and a balanced mixer for enhanced sensitivity and reliability.

Additional Information

Introduction

Operation

The basic principle of operation consists of detecting the frequency shift between a transmitted and a received signal reflected back from a moving object within the field of view of the unit.

The unit produces a low level output signal which can be amplified and processed to provide an audible or visual alarm signal and employs low cost surface mount manufacturing techniques which are field proven as being rugged and reliable.

The MDU1100 series transceivers are available with a range of integral antennas to provide various coverage patterns including 90° corner mount or 360° ceiling mount.

Key Features

Low Cost
High Sensitivity
Patch Antenna
Wall and ceiling mount versions
Small and flat profile
Rugged, reliable contruction
Low power consumption
RoHS compliant
Tested to EN 300 440 v1.3.1

Applications

Intrusion Alarms (room, vehicle)
Automatic door openers
Speed measurement
Collision avoidance
Traffic control
Presence sensing

Characteristics

Electrical Characteristics

Transmitter

Frequency	See available modules tab
Frequency Setting Accuracy	3 MHz
Power Output (Min.)	13 dBm EIRP
Operating Voltage	+5 V ± 0.25 V
Operating Current (CW)	60mA (max)
	40mA (typ)
Harmonic Emissions	<-30dBm

Pulse Mode Operation

Average Current (5% DC)	2 mA typ.
Pulse Width (Min.)	5 μsecs
Duty Cycle (Min.)	1%

Receiver 3Hz to 80Hz bandwidth

Sensitivity (10dB S/N ration)	-86 dBm
Noise	<10μV

Antenna: Standard

Gain	8 dBi
-3 dB Beamwidth
E Plane	72^o
H Plane	36^o

Mechanical Characteristics

Weight	15g
Tab Connections	0.1" spacing
Metallisation	Sn+Ni+Cu
	JEDEC JESD97 (e2)

Environmental Characteristics

RoHS Compliant
Power/Temp. Coefficient (over operating temp. range)	3 dB
Frequency/Temp. Coefficient (over operating temp. range)	15 MHz
Operating Temperature	-10°C to +55°C
Storage Temperature	-30°C to +70°C