CPI VGB8194

CPI gyrotron amplifiers are the only commercially available W-band amplifiers with high peak and average output
powers. The VGB-8194, a five-cavity amplifier, can be operated at peak output powers up to 100 kW and average
output powers up to 10 kW. The full-width-half-maximum bandwidth is 700 MHz and the saturated gain is 35 dB. A
CVD diamond window, developed for use on high-power gyrotron oscillators, has been adapted for the amplifier. The
VGB-8194 is available with a refrigerator-cooled 4 Telsa superconducting magnet which does not require liquid
cryogens.
diamond
window
collector
4T Superconducting
Magnet
53.1 inches
(1.35 meters)
circuit
electron gun
Typical Operating Parameters
Features
•
High Power
•
Broad Bandwidth
•
High Gain
•
Axial Output
•
CVD Diamond Output Window
•
Cryogen-Free Superconducting Magnet
Peak Output Power
100 kW
Avg. Output Power
10 kW
Center Frequency 93.5-94.5 GHz
Bandwidth (-3 dB)
700 MHz
Gain
35 dB
Beam Voltage
65 kV
Mod-Anode Voltage
17 kV
Beam Current
6A
Output Mode
TE01
For additional information on gyrotrons, other CPI products, or a copy of our catalog-on-disk, please contact:
CPI Microwave Power Products, 811 Hansen Way, Palo Alto, CA 94303-0750
Telephone: 650-846-3172, Fax: 650-856-0705, Email: [email protected]
Page 1 of 2
Rev: 2007-03-26
Measured Data for VGB-8194 Serial Number 002
Center Frequency 94.2 GHz, Cathode Voltage 55 kV, Beam Current 5-6 A
12
100
Measured Data
80
8
Theoretical
Prediction
60
6
-3 dB BW
700 MHz
40
4
Duty Factor = 10%
Pulse Width =101.3 µ s
PRF=1000 Hz
20
0
93.6
93.8
10
94
94.2
94.4
94.6
2
Average Output Power (kW)
Peak Output Power (kW)
120
0
94.8
Frequency (GHz)
Efficiency (%), Gain (dB)
40
Measured Gain
35
30
Measured Efficiency
25
20
15
10
Duty Factor = 10%
Pulse Width =101.3 µs
PRF=1000 Hz
5
0
0
10
20
30
40
50
60
Peak Power at Gyrotron Flange (W)
For additional information on gyrotrons, other CPI products, or a copy of our catalog-on-disk, please contact:
CPI Microwave Power Products, 811 Hansen Way, Palo Alto, CA 94303-0750
Telephone: 650-846-3172, Fax: 650-856-0705, Email: [email protected]
Page 2 of 2
Rev: 2007-03-26