NJT1307A
S-Band Radar Front End
NJT1307A is a S-Band Radar Front End which includes 4 port circulator, high
power limiter, variable attenuator, GaAs FET low noise amplifier, image
rejection mixer, local VCO with isolator and FET operation monitor circuit
in a single package.
---- ELECTRICAL ---- <at 25 degree centigrade>
Min
Operating voltage
11.8
Operating current
-
Local frequency
VT=4V
-
VT=24V
3.17
Noise figure
-
conversion gain
3
1dB gain compression point (RF port)
-5.0
Variable attenuation Range (Note2)
20
RF input power at transmitter port (Note1)
-
RF input power at antenna port (Note1)
-
Note:
1. f=3.05GHz, Pd=1usec, Duty=0.001
2. Vatt=12V
---- BLOCK DIAGRAM ----
MONITOR
OUT
Balanced Mixer
4-Port
Circulator
To Antenna
H.P
Limiter
Variable
ATT
Monitor
CKT
Local
VCO
0擄
H
90擄
90擄
To Transmitter
0擄
Balanced Mixer
TUNE
Regulator
IF OUT
(50鈩?
typical
12
90
-
-
4
4
-
25
-
-
Max
12.2
120
3.05
-
5
-
-
-
15
3
Unit
V
mA
GHz
GHz
dB
dB
dBm
dB
kW
kW
LNA
0擄
H
0擄
Divider
Isolator
鈭?/div>
POWER
SUPPLY
ATT
CONTROL
For further information on the use of the front end, please contact New
JRC. New JRC reserves the right to change the specification of goods without
notice.
Rev.2
1
2
