
2
LD7267 SERIES
GENERAL CHARACTERISTICS
ELECTRICAL
Frequency ……………………………………………… 26.5 to 28.6 GHz
27.5 to 30.0 GHz
30.0 to 31.3 GHz
Output Power ………………………………………… 100 W
Heater Voltage ………………………………………… 6.3 V
Heater Current ………………………………………… 1.05 A
Type of Cathode ……………………………………… Indirectly heated, Impregnated
Cathode Warm-up Time
…………………………… 300 s
MECHANICAL
Dimensions …………………………………………… See Outline
Weight ………………………………………………… 3.5 kg approx.
Focusing
……………………………………………… Periodic Permanent Magnet
Mounting Position …………………………………… Any
Electrical Connections ……………………………… Flying Leads
RF Connections
Input ………………………………………………… Mates with UG-599/U Flange
Output ……………………………………………… Mates with UG-599/U Flange
Cooling ………………………………………………… Conduction
ABSOLUTE RATINGS (Note 1, 2 and 3 )
ELECTRICAL
Min.
6.0
–
–
300
10.5
–
Max.
6.6
1.6
1.5
–
11.5
3.0
Unit
V
A
A
s
kV
mA
Heater Voltage ………………………………………
Heater Surge Current
Heater Current ………………………………………
Heater Warm-up Time ……………………………
Helix Voltage
………………………………………
Helix Current
………………………………………
#
Isolated Anode Type
Anode Voltage ………………………………………
Anode Current ………………………………………
#
Single Collector Type
Collector Voltage……………………………………
Collector Current……………………………………
#
Dual-stage Collector Type
Collector Voltage-1 …………………………………
Collector Current-1 …………………………………
Collector Voltage-2 …………………………………
Collector Current-2 …………………………………
Cathode Current ……………………………………
RF Drive Power ……………………………………
Load VSWR …………………………………………
……………………………
0
0
10.0
1.0
kV
mA
4.0
–
6.0
120
kV
mA
4.0
–
1.8
–
–
–
–
6.0
80
2.5
120
120
3.0
kV
mA
kV
mA
mA
mW
–
1.25 : 1
ENVIRONMENTAL
Min.
–15
Max.
+110
Unit
C
Heat Sink Temperature ……………………………
Ambient Temperature
Storage ………………………………………………
Operation ……………………………………………
–55
–30
+100
+75
C
C