Amplifier Research 200T1G2

The Amplifier Research 200T1G2 is a self-contained, forced-air-cooled traveling wave tube (TWT) microwave amplifier engineered for broadband RF applications requiring high instantaneous bandwidth and consistent gain. Delivering 200 W minimum CW output power with 53 dB minimum gain, this unit operates across the 1–2 GHz band and accepts input signals up to 1.0 mW for rated output. The amplifier accommodates AM, FM, and pulse modulation while maintaining faithful signal reproduction, and includes integral protection against load mismatch and reflected power exceeding 40 W.

Technical Specifications

• Frequency range: 1 GHz to 2 GHz


• Output power: 200 W minimum CW; 100 W minimum linear (1 dB compression)


• Gain: 53 dB minimum, adjustable over continuous 35 dB range


• Gain flatness: ±12 dB maximum (1.0–2.0 GHz)


• Input requirement: 1.0 mW maximum for rated output


• Input impedance: 50 Ω, VSWR 2.0:1 max


• Output impedance: 50 Ω, VSWR 2.5:1 typical


• Primary power: 190–260 V, 50–60 Hz, single phase


• AC power consumption: 250 W nominal

Key Features

• Forced-air cooling with rear-mounted intake and exhaust


• Switching mode power supply with fast regulation control and high-order filtering


• Built-in IEEE-488 (GPIB) interface for remote control and automation


• RF output sample port for signal monitoring


• Input overdrive protection standard


• Mismatch tolerance including VSWR protection and 40 W reflected power foldback


• Operates without oscillation or damage across any source and load impedance magnitude and phase


• Modular design enabling straightforward access and serviceability

Typical Applications

• EMC RF susceptibility testing


• Test and measurement


• Industrial and university research and development


• Service applications

Compatibility & Integration The 50 Ω input and output connections support standard RF connectors. IEEE-488 connectivity enables integration into automated test systems and remote instrumentation networks.