X-Band Radar Front End
NJT 1959
NJT1959 is designed for the front end of radar system.
It features a small size and a light weight operable at any frequency
between 9.345GHz and 9.475GHz
This front end module consists of HEMT low noise amplifier. image
rejection mixer. local VCO with buffer amplifier.
FET monitoring circuit is included to monitor FET drain current.
The stability of the local VCO frequency by the input RF power is
increased effectively by the buffer amplifier which is located between
image rejection mixer and local VCO.
The gain compression level of the RF input port is improved.
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ELECTRICAL ---
< at 25
擄C
>
Min
Typical
4.8
5.0
-
-
-
-
9.56
-
-
3.5
0
2.0
-3.0
0
-
50
-
-
-
-
Max
Unit
5.2
V
80
mA
9.38
GHz
-
GHz
4.0
dB
-
dB
-
dBm
-
mV
600
mW
400
mW
Operating Voltage 路路路路路路路路路路路路路路路路路路路路
Operating current 路路路路路路路路路路路路路路路路路路路路
Local frequency V
T
= 4V 路路路路路路路路路路路路路路路
V
T
= 24V 路路路路路路路路路路路路路路
Noise figure 路路路路路路路路路路路路路路路路路路路路路路路路路
Conversion gain 路路路路路路路路路路路路路路路路路路路路路路
1dB Gain compression point(RF Port) 路路
Monitor voltage 路路路路路路路路路路路路路路路路路路路路路路
RF single pulse burnout(Note1) 路路路路路路路
RF repetitive Pulse burnout(Note2) 路路路
Note1, f=9.41GHz Pd10nsec
NOte2, f=9.41GHZ Pd=1碌s Duty=0.001
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BLOCK DIAGRAM ---
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.
95-11
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