The Amplifier Research 120S1G3M1 is a solid-state Class AB microwave power amplifier engineered for high-power RF applications across the 1 GHz to 3 GHz band. Delivering 120 watts minimum output power with 40 dB minimum gain, this unit combines linearity and reliability in a rugged benchtop or rack-mountable chassis. Both input and output impedances are 50 ohms with Type N female connectors. The amplifier accommodates AM, FM, PM, pulsed, and complex modulated signals, making it suitable for EMC testing, radar development, and broadband communication systems. Forced air cooling and AC power input (115 V or 230 V, 50/60 Hz) support sustained field and laboratory operation. Harmonic distortion is specified better than −20 dBc at rated output power. Control and status monitoring are available through optional remote interfaces.
– Technical Specifications
• Frequency Range: 1 GHz to 3 GHz
• Output Power (Minimum): 120 W
• Gain (Minimum): 40 dB
• Class of Operation: Class AB
• Input Impedance: 50 Ω
• Output Impedance: 50 Ω
• Harmonic Distortion: Better than −20 dBc at rated output power
• Modulation Compatibility: AM, FM, PM, pulsed, complex modulated signals
• Power Input: 115 V or 230 V AC, 50/60 Hz
• Cooling: Forced air
• RF Input Connector: Type N female
• RF Output Connector: Type N female
– Key Features
• 120 W output power across 1–3 GHz band
• 40 dB gain with Class AB efficiency
• 50 Ω input and output for standard RF integration
• Low harmonic distortion at full power
• Broad signal type support including complex modulation
• Remote control and status interface options
– Typical Applications
• EMC testing to FCC, CE, IEC, and MIL-STD standards
• Radar transmitter power amplification
• Broadband wireless communication testing
• Satellite communication ground stations
– Compatibility & Integration
The 120S1G3M1 integrates directly with signal generators, power meters, and standard RF test benches via 50 Ω Type N connectors. Remote control capabilities support Ethernet, GPIB, and similar interfaces for automated test environments.
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