Amplifier Research 1000T2G8B AR-1000T2G8B
1000Watt, CW 2.5Ghz-7.5GHz TWT Microwave Amplifier
The AR-1000T2G8B 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 1000 watts minimum over most of
the frequency range 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, 0dBm input, VSWR protection, gain control,
RF output sample ports, 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
weight reduction. The rated power is developed by efficiently power combining
the outputs from two 535 watts (nominal) microwave tubes that are factory
matched in gain and phase to offer moderate harmonic levels without added
filters. Amplifier includes wheels, leveling feet and lifting hooks.
POWER (fundamental), CW, @ OUTPUT CONNECTOR
Nominal: 1100 watts
Minimum: 900 watts minimum, 2.5GHz-2.7GHz.
1000 watts minimum, 2.7GHz-7.5GHz.
Linear @ 1 dB Compression: 250 watts minimum
FLATNESS: +-8dB maximum, equalized for +- 3dB maximum at rated power
FREQUENCY RESPONSE: 2.5GHz-7.5GHz instantaneously
INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum
GAIN (at maximum setting): 60dB minimum
GAIN ADJUSTMENT (continuous range): 35dB minimum
INPUT IMPEDANCE: 50 ohms, VSWR 2.0:1 maximum
OUTPUT IMPEDANCE: 50 ohms, VSWR 2.5:1 typical
Output power foldback protection at reflected power 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: AM, FM, or pulse modulation appearing on the input
signal. AM peak envelope power limited to specified power.
NOISE POWER DENSITY: -80dBm/Hz (maximum)
HARMONIC DISTORTION: -15dBc maximum, -17dBc typical
PRIMARY POWER: 190-225VAC 3 phase, delta (4wire), 50/60Hz, 8.0KVA max
RF input:Type N female
RF output: Type WRD250D30
RF output sample ports (forward and reflected): Type N female
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.
Weight: 650lb (295kg)