Amplifier Research 200T1G3 Amplifier

The Amplifier Research 200T1G3 is an advanced, self-contained microwave amplifier specifically engineered for high-performance applications that demand both expansive bandwidth and elevated gain. This air-cooled, broadband, traveling wave tube (TWT) amplifier is ideally suited for benchtop operations, yet its robust design allows for straightforward rack mounting.

Key Features:

• Delivers reliable RF power suitable for diverse fields including:
• Test and measurement scenarios
• EMC RF susceptibility assessments
• Industrial and academic research
• Field service applications
• Equipped with a dependable 250 watt TWT, offering a minimum output of 200 watts at the connector.
• Dynamic front panel digital display shows:
• Real-time forward and reflected power readings
• Extensive system status updates accessible through soft-key menus
• Status Indicators: Power On, Warm-up, Standby, Operate, Faults, Excess Reflected Power Warning, and Remote Status
• Comprehensive built-in features including:
• IEEE-488 (GPIB) interface standard
• 0dBm input capability
• VSWR protection for enhanced durability
• Variable gain control
• External video pulsing capability
• RF output sample port
• Monitoring for TWT helix current, cathode voltage, collector voltage, heater current, heater voltage, baseplate temperature, and cabinet temperature
• Input overdrive protection implemented
• Modular architecture facilitates easy access for service and repair of power supply and RF components.
• Lightweight design achieved through a switching mode power supply.
• External video pulsing feature reduces primary power utilization during pulse operations.

Specifications:

• Power Output:
• Nominal: 242 watts
• Minimum: 200 watts
• Linear @ 1 dB compression: 50 watts minimum
• Flatness: ±12 dB maximum, equalized for ±5 dB maximum at rated power.
• Frequency Response: 0.8 - 2.8 GHz instantaneous.
• Input Requirements: 1.0 milliwatt maximum for rated output.
• Gain:
• (at maximum setting): 53 dB minimum.
• Gain adjustment range: 35 dB minimum, continuously variable.
• Input/Output Impedance:
• Input: 50 ohms, VSWR 2.5:1 maximum.
• Output: 50 ohms, VSWR 2.5:1 typical.
• Mismatch Tolerance:
• Includes output power foldback protection when reflected power exceeds 40 watts.
• Designed to operate without damage with any magnitude and phase of source and load impedance.
• May oscillate when unshielded open due to input coupling.
• Connector removal during testing should be avoided.
• Modulation Capability: Supports AM, FM, or pulse modulation faithfully.
• Video Pulse Capability:
• Minimum pulse width: 0.05 microseconds.
• Maximum pulse rate (PRF): 100 kHz.
• RF rise and fall time: 30 ns maximum (10% to 90%).
• Maximum delay: 300 ns (from pulse input to RF 90%).
• Maximum pulse width distortion: ±30 ns.
• Noise Power Density:
• Pulse On: Maximum: -72 dBm/Hz, Typical: -77 dBm/Hz.
• Pulse Off: Typical: -140 dBm/Hz.
• Harmonic Distortion:
• Maximum: -3 dBc.
• Typical: -4.5 dBc.
• Primary Power Requirements:
• Voltage: 190 - 260VAC
• Frequency: 50/60 Hz, single phase.
• Maximum Power: 2.5 KVA.
• Connector Types:
• RF Input: Type N female rear panel.
• RF Output: Type N female rear panel.
• RF Output Sample Port: Type N female rear panel.
• GPIB: IEEE-488 (f) rear panel.
• Interlock: DB-15 female rear panel.
• Video: BNC-female rear panel.
• Cooling System: Forced air cooling via self-contained fans with ventilated entry and exit at the rear.