Sensors

Sensor Modules

24GHz Distance Measurement Modules –Digital Output Type–

NJR4234 series

Distance measurement sensor using the 24GHz microwave
Measurement distance of 20 m for a pedestrian (B type)
Antenna, Microwave RF circuit, Base-band IF circuit, MCU and also signal processing are integrated
Low-profile package
Low-power-consumption: 37 mA @ 3.3 V power supply
Unique Signal Processing / Algorithm Installation
• High sensitivity mobile object detection (Patented Technology)
• Distance measurement signal processing
• Automatic calibration and gain control
• Radio interference prevention
Adopted UART and digital CMOS output for interface

Products Line-up

Part No. Detection
Characteristic
Antenna Type RF Frequency Region
/ Regurations
Development
Status
NJR4234BVF1C1 Distance Measurement
for
Moving Objects
2 x 4 type
Range: 20m
(B type)
24.05 to 24.25 GHz Japan
/ Technical Conformity
[Certified]
In Production
NJR4234BVF2C1 24.15 to 24.25 GHz Europe
/ CE - RE Directive
[Accessible]
NJR4234BVF3C1 24.075 to 24.175 GHz U.S.A.
/ FCC Certification
[Uncertified]
NJR4234BWF1C1 Distance Measurement
for
Stationary Objects
and
Moving Objects
24.05 to 24.25 GHz Japan
/ Technical Conformity
[Certified]
Under Development
NJR4234BWF2C1 24.15 to 24.25 GHz Europe
/ CE - RE Directive
[Accessible]
NJR4234BWVF3C1 24.075 to 24.175 GHz U.S.A.
/ FCC Certification
[Uncertified]

Specifications

Items Parameters
RF Frequency 24.05 to 24.25 GHz
Output Transmittion Power
E.I.R.P.
B type: +12 dBm typ., +13.8 dBm max.
Antenna Angle B type: 42 ° / 28 °
Input Voltage 2.9 to 3.6 V
Current 37 mA typ. [average]
250 mA max. [peak]
Operating Temperature Range -20 to +60 ℃
Dimension
(w/o Interfaces & Screws)
B type: (L) 38 x (W) 38 x (H) 4.2 mm
Outline Drawing - B type -

Evaluation Kit

Part No. for Evaluation Kit: NJR4234K
Contents List • Evaluation Board
• USB Cable
• GUI *Download from below
note) Sensor module itself needs to be prepared separately.

Download Files

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