Key Features
- 24 GHz K-band miniature transceiver
- Dual 4 patch antenna
- Beam aperture 80°/34°
- Single channel design
- 25x25mm2 surface, 6mm thickness
- Lowcost design
- With or without FM input depending on variant
- 3.3V or 5V variant
K-LC1a is a 8 patch Doppler module with an asymmetrical beam for lowcost short distance applications. Its typical applications are movement sensors in the security and automatic door domain. In building automation this module may be an alternative for infrared PIR or AIR systems thanks to its outstanding performance/ cost ratio. The module is extremely small and lightweight.
FSK is possible thanks to the unique RFbeam oscillator design. This allows to use this lowcost module even in ranging applications. Powerful starter kits (ST100 and ST200) with signal conditioning and visualization on the PC’s are available.
Application notes
Certificates
| Model | State | FM Input | Supply | Pins |
| K-LC1a | Not Recommended for New Designs | Yes | 5V | 5 |
| K-LC1a_V2 | Not Recommended for New Designs | No | 5V | 3 |
| K-LC1a_V4 | Not Recommended for New Designs | Yes | 3.3V | 5 |
| K-LC1a_V5 | Not Recommended for New Designs | No | 3.3V | 3 |
Applications
Elderly care
Intrusion
Internet of things
Perimeter protection
Person detection
Room surveillance
Speed measurement
Street lighting
Touchless switch
