Description
K-LC4 is a 2 patch Doppler module with a nearly symmetrical wide beam for low cost short distance applications.
Typical applications are movement sensors for security, lighting and building automation applications. This module may be an alternative or a complementary sensor for infrared PIR or AIR systems thanks to its outstanding performance / cost ratio.
The module is extremely small and lightweight. With an IF bandwidth from DC to 50 MHz it opens many new applications.
The unique RFbeam circular polarized antenna form allows much wider acquisition fields than the traditional linear polarized patch antenna.
A powerful starterkit with signal conditioning and visualization is available from RFbeam.

Block diagram
Typical Applications:
Door Opening

Vital Sign monitoring

• Measure heartbeat
• Breathing rate
Indoor automation

• Automatic light activation
• Air-conditioning active if room is occupied
Intrusion Alarm

• Detection movement in room
• Measure distance to object
Movement detection

• Activate light on advertising boards
• Attract attention to an object
Speed measurement

• Inform driver of his actual speed
• Measure distances between vehicles