MDU1750

The Microwave Solutions MDU1730/40/50 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.
£23.00

In stockAvailability: In stock


Details

The Microwave Solutions MDU1750 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.
Click here to download the product datasheet.

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.

Key Features

  • Low Cost
  • High Sensitivity
  • Patch Antenna
  • Supervision capability
  • Small and flat profile
  • +3.6V and +5V versions available
  • Rugged, reliable contruction
  • Low power consumption
  • RoHS compliant
  • Tested to EN 300 440 v1.3.1


Applications

  • Intrusion Alarms (rooms, vehicles)
  • 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.) 10 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 70o
H Plane 36o



Antenna: Ceiling Mount

 

Gain 5 dBi



Mechanical Characteristics

 

Weight 13g
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



Available Modules
Country Frequency Product Code
Germany, Croatia 9.35GHz C920820
France, Portugal 9.9GHz C920807
Ireland 10.41GHz C920871
Italy, Holland, US 10.525GHz C920802
UK 10.587GHz C920801
Coverage Pattern
Outline Drawing

You can view the full outline drawing here