Amplifier Research 1500T8G18 TWT Amplifier 7.5 GHz – 18 GHz 1500W
Description
Amplifier Research 1500T8G18 is a self contained, forced air cooled, broadband traveling wave tube (TWT) microwave amplifier designed for applications where instantaneous bandwidth, high gain and high power output are required. Reliable TWT subsystems provide a conservative 1500 watts minimum at the amplifier output connector. Stated power specifications are at fundamental frequency.
The amplifier's front panel digital display shows forward and reflected output 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 reflected power warning and remote.
Standard features include a built-in IEEE-488 (GPIB) interface, 0 dBm input, VSWR protection, gain control, RF output sample port, 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 a switching mode power supply results in significant weight reduction. The rated power is developed by efficiently power combining the outputs from four 500 watts (nominal) microwave amplifiers that are factory matched in gain and phase.
The Model 1500T8G18 provides readily available RF power for a variety of applications in Test and Measurement, (including EMC RF susceptibility testing), Industrial and University Research and Development, and Service applications.
Features
- Broadband
- Forced air cooled
- Digital display
- AM, FM or pulse modulation
- IEEE-488 (GPIB) interface
- VSWR protection
- Gain control
- 0 dBm input
- RF output Sample ports
- Auto sleep
Specifications
POWER (fundamental), CW, @ OUTPUT CONNECTOR |
|
Nominal |
2000 watts |
Minimum |
1500 watts |
Linear @ 1dB Compression |
375 watts minimum |
FLATNESS |
±11 dB maximum, equalized for ±6 dB maximum rated power |
FREQUENCY RESPONSE |
7.5-18 GHz instantaneously |
INPUT FOR RATED OUTPUT |
1.0 milliwatt maximum |
GAIN (at maximum setting) |
62 dB minimum |
GAIN ADJUSTMENT (continuous range) |
35 dB minimum |
INPUT IMPEDANCE |
50 ohms, VSWR 2.0:1 maximum |
OUTPUT IMPEDANCE |
50 ohms, VSWR 2.5:1 typical |
MISMATCH TOLERANCE |
Output power foldback protection at reflected power exceeding 300 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. |
MODULATION CAPABILITY |
Will faithfully reproduce AM, FM, or pulse modulation appearing on the input signal. AM peak envelope power limited to specified power. |
NOISE POWER DENSITY |
Minus 70 dBm/Hz (maximum) Minus 72 dBm/Hz (typical) |
HARMONIC DISTORTION |
Minus 20 dBc maximum Minus 27 dBc typical |
PRIMARY POWER |
190-255 VAC three phase, delta (4 wire) 50/60 Hz 16 kVA maximum |
CONNECTORS |
|
RF input |
Type N female on rear panel |
RF output |
Type WRD 750D24 waveguide flange on rear panel |
RF output sample port |
Type N female on rear panel |
GPIB |
IEEE-488 (f) on rear panel |
Interlock |
DB-15 (f) on rear panel |
COOLING |
Forced air (self contained fans), air entry and exit in rear. |
SIZE (W x H x D) |
(Two Cabinets) Each 56 x 160 x 84 cm, 22.1 x 63 x 33 in. |
WEIGHT (approximate) |
546 kg, 1200 lbs. |