Amplifier Research 200T4G8 Amplifier, 4 - 8 GHz, 200 Watts

Amplifier Research 200T4G8 Amplifier, 4 - 8 GHz, 200 Watts

The AR-200T4G8 is a self contained, forced air cooled, broadband travelling wave tube (TWT) microwave amplifier designed for applications where instantaneous bandwidth and high gain are required. A reliable 250 watt TWT provides a conservative 200 watts minimum at the amplifier output connector.
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AR-200T4G8 Amplifier Description

The AR-200T4G8 is a self contained, forced air cooled, broadband travelling wave tube (TWT) microwave amplifier designed for applications where instantaneous bandwidth and high gain are required. A reliable 250 watt TWT provides a conservative 200 watts minimum at the amplifier output connector. Stated power specifications are at the 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.

Housed in a stylish contemporary cabinet, this unit is designed for benchtop use but can be removed from cabinet for rack mounting. The Model 200T4G8 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.

AR-200T4G8 Amplifier Description

The AR-200T4G8 is a self contained, forced air cooled, broadband travelling wave tube (TWT) microwave amplifier designed for applications where instantaneous bandwidth and high gain are required. A reliable 250 watt TWT provides a conservative 200 watts minimum at the amplifier output connector. Stated power specifications are at the 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.

Housed in a stylish contemporary cabinet, this unit is designed for benchtop use but can be removed from cabinet for rack mounting. The Model 200T4G8 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.

Amplifier Research 200T4G8 Specification

Power (fundamental), CW, @ Output Connector:
Nominal: 262 watts
Minimum: 200 watts
Linear @ 1 dB Compression: 100 watts minimum
Flatness: ±6 dB maximum at rated power
Frequency Response: 4 - 8 GHz instantaneously
Input for Rated Output: 1.0 milliwatt maximum
GAIN (at maximum setting): 53 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 40 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 64 dBm/Hz maximum; Minus 70 dBm/Hz, typical
Harmonic Distortion: Minus 4 dBc maximum; Minus 7.0 dBc typical
Primary Power: 190-260 VAC, 50/60 Hz single phase, 2.0 KVA maximum
Connectors:
RF Input: Type N female on rear panel
RF Output: Type N female on rear panel
RF Output sample port: Type N female on rear panel
GPIB: IEEE (f) on rear panel
Interlock: DB-15 (f) on rear panel
Cooling: Forced air (self contained fans), air entry and exit in rear
Export Classification: EAR99