© RFbeam Microwave GmbH | Schuppisstrasse 7 | CH-9016 St. Gallen | www.rfbeam.ch | K-LD7 | product information

10/2018 – Revision A | Page 1/2

PRODUCT INFORMATION

– Small and low cost digital 24 GHz radar motion detector

– Measures distance, speed and angle of moving objects

– Detection distance: 15 m for persons/30 m for cars

– Target list output over serial interface

– Integrated FFT signal processing with digital outputs

– Detection distance and hold time can be set

using analogue inputs

– Wide power supply range from 3.2 to 5.5 V

– 3 × 4 patch antenna with 80°/34° beam aperture

– Distance triggered movement detection applications

– Pedestrian counting

– Traffic counting

– Simple gesture recognition

– Indoor and outdoor lighting control applications

The K-LD7 is a fully digital and low cost Doppler radar that can

measure speed, distance and angle of objects in front of the

sensor. The digital structure and wide power supply range make it

very easy to use in any stand-alone or MCU based application.

The sensor includes a 3 × 4 patch radar front-end with an asym-

metrical beam and a powerful signal processing unit with two

digital outputs for signal detection information. Detection distance

and detection hold time are adjustable using analogue inputs with

potentiometers. The serial interface features the possibility to read

out a target list with speed, distance and angle information of all

moving objects in front of the sensor or to digitally configure the

sensors detection parameters.

There is no need to write own signal processing algorithms or

handle small and noisy signals. This module contains everything

that is necessary to build a simple but powerful motion detector

with distance and angle information. A very small footprint of

38 × 25 ×7mm gives maximum flexibility in the product develop-

ment process. For fast prototyping an evaluation kit (K-LD7-EVAL)

is available which features powerful signal visualization on a PC.

Features

Applications

Description

Block Diagram

product information

K-LD7

digital radar transceiver

Figure 1: block diagram

signal processing unit

voltage regulator

detect

miscellaneous

serial interface

distance

hold time

K-LD7

24.05– 24.25 GHz

Tx

Rx1

Rx2

Available in Q2/2019