Data Sheet

1

1999-04-01

Microwave Motion Sensor

KMY 24

Description

The KMY 24 is a microwave rader motion sensor

based on the Doppler effect. It transmits a low

energy microwave radiation at 2.45 GHz which is

reflected by objects. If the object is moving relative

to the sensor, a Doppler shift occurs. The shifted

wave is mixed with the original wave in two mixers,

resulting in two output voltage signals. The phase

shift between these two signals is negative or

positive depending on whether the target is

approaching or receding from the detector.

Features

• High sensitivity

• Dual Mixers enabling direction detecting

• High reliability

• Low power consumption

• Low harmonic emission

• Small size

• Light weight

• Low cost

Notes:

1. Solder pads must not be perforated, as this will damage,

and may destroy the multilayer PC Board.

2. Regulations on the use of High frequency devices.

The use of high frequency devices is regulated in most

countries and certain frequencies can be subject to restrictions. The use of the KMY 24 should be clarified with

the respective authorities in each country to ensure compliance with the prevalent legislation.

Typ

Marking

Ordering Code

Operating Frequency

License No.

KMY 24

KMY 24

Q62702-R323

2.45 GHz

BZT G127520H

Pin Configuration

1

2

V

3

V

4+

V

S

EHA07260

23 4

1

SIEMENS

KMY 24