2.5 kW, CW Helix TWT Series, 7.9 GHz to 8.4 GHz, Periodic-Permanent, Magnet Focused,
Coaxial Input, Waveguide Output, and Forced Air Cooled.
Custom configurations are also available. These variations in the performance and
configuration include: mechanical configuration, electrical and RF connections, & dual
stage depressed collector.
Model Number
Frequency
(GHz)
Power Output
(Min.)
VTX-6389G5
VTX-6389G4
VTX-6389L3
7.9 – 8.4
7.9 – 8.4
7.3 – 8.7
2500 W
2250 W
1800 W
Operating Parameters
Heater
Features
2.5 k Watts
7.9 GHz – 8.4 GHz
PPM Focusing
Coaxial Input
Waveguide Output
Any Mounting Position
Weight: 25 lbs. max
Forced Air Cooled
Heater
Surge
Voltage Current
Helix
Voltage Voltage 1
Ew
kVdc
15.4
13.9
Collector
Collector
Voltage 2
Eb2
Cathode
Current
Ik
•
•
•
•
•
•
•
•
Parameters: Ef
If
A
5.0
- - -
Eb1
kVdc
60% Ew
Units:
Vdc
6.6
6.0
kVdc
Adc
Maximum:
Minimum:
Typical:
30% Ew
1.0 A
- - -
Helix
Current Power
Drive
Cathode Load
Envelope
Temp.
Air
Flow
Warm-
Up Time
tk
VSWR
Parameters:
Units:
Maximum:
Minimum:
Typical:
Iw
Pd
mAdc
20
- - -
mW
Adj.
- - -
minutes
- - -
3
°C
Ib/hr
- - -
- - -
1.7:1
- - -
- - -
The values listed above represent specified limits for the product and are subject to change. The data should be used
for basic information only. Formal, controlled specifications may be obtained from CPI for use in equipment design.
For additional information on CPI MPP products contact:
CPI MPP, Helix TWT Operation - 811 Hansen Way, Palo Alto, CA 94303-0750
Phone: 650-846-3900, Fax: 650-494-8779, Email: marketing@mpp.cpii.com, www.cpii.com/mpp
