Amplifier Research 300T2G8 Microwave Amplifier

Introducing the Amplifier Research 300T2G8: a self-contained, forced air-cooled, broadband traveling wave tube (TWT) microwave amplifier specifically engineered for applications demanding instantaneous bandwidth and high gain. With a reliable TWT, the AR 300T2G8 delivers a minimum of 300 watts at the amplifier output connector. The power specifications are confirmed at the fundamental frequency, ensuring optimal performance.

Intuitive Display and Comprehensive Monitoring

The front panel digital display of the AR 300T2G8 showcases forward and reflected output, complemented by extensive system status information. Users can easily navigate through a series of menus via soft keys to monitor key indicators such as:

• Power on
• Warm-up
• Standby
• Operate
• Faults
• Excess reflected power warning
• Remote operation

Robust Features for Enhanced Performance

The AR 300T2G8 is equipped with numerous standard features including:

• Built-in IEEE-488 (GPIB) interface
• 0 dBm input capability
• VSWR protection
• Continuous gain control
• External video pulsing
• RF output sample port
• Auto sleep function

Additionally, the amplifier monitors key parameters such as TWT helix current, cathode voltage, collector voltage, heater current, heater voltage, base plate temperature, and cabinet temperature, providing thorough oversight during operation.

Modular Design for Easy Maintenance

Thanks to its modular design, accessing and repairing the RF components and power supply of the AR 300T2G8 is straightforward. The incorporation of a switching mode power supply not only enhances reliability but also significantly reduces weight, making it more user-friendly for professionals.

Stylish and Versatile Build

The AR 300T2G8 is housed in a sleek, contemporary cabinet ideal for bench-top use, while also offering the flexibility to be removed for rack mounting. This amplifier provides readily accessible RF power for a variety of applications, including:

• Test and Measurement
• EMC RF susceptibility testing
• Industrial applications
• University Research and Development
• Service applications

Key Specifications:

• Power (fundamental), CW, @ Output Connector:
  • Nominal: 350 watts
  • Minimum: 300 watts
  • Linear @ 1 dB Compression: 75 watts minimum
• Flatness: ±12 dB maximum, equalized for ±5 dB maximum at rated power
• Frequency Response: 2.5-7.5 GHz instantaneous
• Input for Rated Output: 1.0 milliwatt maximum
• Gain (at maximum setting): 55 dB minimum
• Gain Adjustment: 35 dB continuous range 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 60 watts; operates safely with any magnitude and phase of source and load impedance.
• Modulation Capability: Supports AM, FM, or pulse modulation with specified power limits.
• Video Pulse Capability:
  • Pulse Width: 0.05 microseconds min
  • Pulse Rate (PRF): 100 kHz max
  • RF Rise and Fall: 30 ns max (10% to 90%)
  • Delay: 300 ns max from pulse input to RF 90%
  • Pulse Width Distortion: ±30 ns
• Noise Power Density:
  • Pulse on: Minus 85 dBm/Hz (maximum); Minus 90 dBm/Hz (typical)
  • Pulse off: Minus 140 dBm/Hz (typical)
• Harmonic Distortion: Minus 3.0 dBc maximum; Minus 4.5 dBc typical
• Primary Power: 190-260 VAC, 50/60 Hz single phase, 3.0 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-488 (f) on rear panel
  • Interlock: DB-15 (f) on rear panel
  • Video: BNC-female on rear panel
• Cooling: Equipped with forced air cooling through self-contained fans, allowing for efficient thermal management.