Amplifier Research 3800TP1G2 Pulse Amplifier 1 GHz – 2 GHz 3800W
Description
Amplifier Research 3800TP1G2 is a self contained, forced air cooled, broadband traveling wave tube (TWT) microwave amplifier designed for pulse applications at low duty factors where instantaneous bandwidth and high gain are required. A reliable TWT provides a conservative 3800 watts minimum peak RF pulse power at the amplifier output connector. Stated power specifications are at the fundamental frequency.
The amplifier's front panel digital display shows forward and reflected average power output or forward and reflected peak power, plus extensive system status information accessed through a series of menus via soft keys. Status indicators include power on, warm-up, standby, operate, faults, excess average or peak reflected power warning and remote. Standard features include a built-in IEEE-488 (GPIB) interface, 0dBm input, TTL Gating, VSWR protection, gain control, RF output sample ports, auto sleep, plus monitoring of TWT helix current, cathode voltage, collector voltage, heater current, heater voltage, baseplate temperature and cabinet temperature. Modular design of the power supply and RF components allow for easy access and repair. Use of switching mode power supplies results in significant weight reduction.
Housed in a stylish contemporary cabinet, the amplifier provides readily available pulsed RF power for a variety of applications in Test and Measurement, (including EMC RF pulse susceptibility testing), Industrial and University Research and Development, and Service applications.
Features
- Broadband
- Forced air cooled
- Digital display
- Pulse Modulation
- IEEE-488 (GPIB) interface
- VSWR protection
- Gain control
- RF output Sample ports
- Auto sleep
Specifications
|
POWER (Fundamental), Peak Pulse, @ Output |
|
|
Nominal |
4,500 watts |
|
Minimum |
3,800 watts |
|
FLATNESS |
±6 dB maximum |
|
FREQUENCY RESPONSE |
1 – 2 GHz |
|
INPUT FOR RATED OUTPUT |
1.0 milliwatt maximum |
|
GAIN (at maximum setting) |
66 dB minimum |
|
GAIN ADJUSTMENT (continuous range) |
35 dB minimum |
|
INPUT IMPEDANCE |
50 ohms, VSWR 2.5:1 maximum |
|
OUTPUT IMPEDANCE |
50 ohms, VSWR 2.5:1 typical |
|
MISMATCH TOLERANCE |
Output pulse width foldback protection at peak reflected power exceeding 1,000 watts. Will operate without damage or oscillation with any magnitude and phase of source and load impedance. May oscillate with unshielded open due to coupling to input. Should not be tested with connector off. |
|
PULSE CAPABILITY |
|
|
Pulse Width |
0.07 – 100 microseconds. |
|
Pulse Rate (PRF) |
100 kHz maximum |
|
Duty Cycle |
4% maximum. |
|
RF Rise and Fall |
30 ns max (10% to 90%). |
|
Delay |
300 ns maximum from pulse input to RF 90% |
|
Pulse Width Distortion |
±30 ns maximum (50% points of output pulse width compared to 50% points of input pulse width) |
|
Pulse Off Isolation |
80 dB minimum, 90 dB typical |
|
Pulse Input |
TTL level, 50 ohm nominal termination |
|
NOISE POWER DENSITY |
|
|
(pulse on) |
Minus 60 dBm/Hz maximum; Minus 65 dBm/Hz typical |
|
(pulse off) |
Minus 140 dBm/Hz (typical) |
|
HARMONIC DISTORTION |
Minus 3 dBc maximum, minus 5 dBc typical |
|
PRIMARY POWER |
190-260 VAC, 50/60 Hz single phase, 2 KVA maximum |
|
CONNECTORS |
|
|
RF input |
Type N female on rear panel |
|
RF output |
Type DIN 7-16 female on rear panel |
|
RF output forward and reflected sample ports |
Type N female on rear panel |
|
Pulse input |
Type BNC female on rear panel |
|
GPIB |
IEEE-488 female on rear panel |
|
Interlock |
DB-15 female on rear panel |
|
COOLING |
Forced air (self contained fans), air entry and exit in rear. |
|
SIZE (W x H x D) |
50.3 x 26 x 94 cm, 19.8 x 10.3 x 37 in |
|
WEIGHT (approximate) |
57 kg, 125 lbs |
