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RFbeam Microwave GmbH | Schuppisstrasse 7 | CH-9016 St. Gallen | www.rfbeam.ch | K-LC4 | data sheet

01/2018 – Revision A | Page 1/4

– 24 GHz K-band miniature transceiver

– Dual 1 patch circular polarized antenna

– Dual balanced mixer with 50 MHz bandwidth

– Excellent noise cancelling ability through I/Q technology

– Wide beam aperture 138°/132°

– 10 dBm EIRP output power

– 25 × 25 mm² surface, < 6 mm thickness

– Low cost design

– Direction sensitive movement detectors

– Security systems

– Simple ranging detection using FSK

– Ceiling and wall mount surveillance system

– Industrial sensors

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 band-

width 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. Find more informations on www.rfbeam.ch.

Features

Applications

Description

data sheet

K-LC4

radar transceiver

Figure 1: K-LC4 block diagram

VCO 24 GHz

FM Input

I

Q

K-LC4

φ 90°

VCO 24 GHz

Block Diagram