InnoSenT IMS944 Users Manual

Innovation in radar sensing
Making happen what others only dream of

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DATA SHEET

Product Family: Multifunctional K-Band Transceiver
Range of use: Traffic Monitoring / Industrial Applications

Module Number: IMS-944

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General Information:

• The IMS-944 (InnoSenT Multifunctional Sensor) is the advanced version of the
famous InnoSenT K-Band Transceiver IPS-144.

• The sensor provides a special RF-Design for maximum sensitivity in long range
applications like traffic monitoring or speed enforcement.

• New and smart features like programmable Tx-frequency or 2 power options
give the user new options in the field of marketing and stock keeping.

Description:

Basic Features IMS-944:

• radar-based motion detector operating in the 24GHz ISM Band

• stereo (dual channel) operation for direction of motion identification

• integrated RF-pre-amplifier

• programmable IF-amplifier

• 2 selectable output power levels (ETSI / FCC)

• automatic gain control (AGC) of output power over temperature

• integrated PLL-circuit for high frequency stability

• frequencies are programmable by customer

o one constant frequency
o changing of frequencies by customers by external programming

Factory settings:

• programmed frequency: 24.160GHz

• programmed IF-gain: 53dB

Innovation in radar sensing

Making happen what others only dream of

CONFIDENTIAL AND PROPRIETARY

The information contained in this document is the exclusive property of InnoSenT GmbH

and must not be disclosed by the recipient to third parties

1 von 5 DATA SHEET IMS-944 04-06-2009

- - Version 0.3

Parameter

Symbol

min. typ. max.

units

comment

out

out

Parameter

Symbol

min. typ. max.

units

comment

Innovation in radar sensing
Making happen what others only dream of

Electrical Characteristics:

Oscillator

transmit frequency F 24.000 24.250 GHz programmable
channel spacing 4 MHz
temperature drift
frequency
output power (ETSI) P
output power (FCC) P

∆f

20 dBm controlled by AGC
26 dBm

< 10 kHz/°C

Antenna

antenna pattern (-3 dB) horizontal 32 ° azimuth
vertical 14 ° elevation
side lobe suppression horizontal 25 dB azimuth
vertical 25 dB elevation

Antenna pattern:

output power [dB]

angle [°]

Innovation in radar sensing

CONFIDENTIAL AND PROPRIETARY

The information contained in this document is the exclusive property of InnoSenT GmbH

and must not be disclosed by the recipient to third parties

2 von 5 DATA SHEET IMS-944 04-06-2009

- - Version 0.3

Making happen what others only dream of