User's Guide

E247 - DRO T4
29/06/2021
Built from CF032 V2.0
Page 2 of 5
Technical Construction File
CONFIDENTIAL – PROPRIETARY INFORMATION
Description
The BEA T4 is a 24GHz K-band Doppler transceiver with active antenna. Based on an advanced
oscillator with low power consumption. This dual channel transceiver enables the detection of
moving object with direction information. Thanks to its unique transmit and receive antenna, it
offers a symmetrical radiation pattern. With its active switch it allows to electrically change the
radiation pattern from wide to narrow field.
General
Frequency band
K
Sensor type
Doppler
Radar type
Continuous wave
Modulation
Unmodulated
Antenna type
Active
Detection mode
Motion
Weight
15gr
Technical characteristics
Parameter
Conditions
Symbol
Min
Typ
Max
Unit
Operating conditions
Supply voltage
V
cc
5
V
Supply current
I
cc
25
35
40
mA
Operating temperature
T
op
-30
70
°C
Transmitter
Transmit frequency
25°C
F
24.125
24.150
24.175
GHz
Tx output power
EIRP
P
out
< 20
dBm
Frequency drift in temperature
-30°C to 70°C
∆F
1
MHz/°C
IF output
I/Q phase
90
°
IF output resistance
5
kΩ
Antenna
Antenna switch logic
Horizontal Wide
3.3
5
V
Horizontal Narrow
0
V