Amplifier Research 40T18G40 TWT Amplifier
The Amplifier Research 40T18G40 is a state-of-the-art, self-contained broadband traveling wave tube (TWT) microwave amplifier, engineered for applications necessitating wide instantaneous bandwidth, high gain, and moderate power output. This robust amplifier delivers a reliable minimum output of 40 watts at the output connector, with power specifications accurately stated at the fundamental frequency.
The user-friendly front panel features a digital display that provides real-time information on forward and reflected output, alongside comprehensive system status data accessible via soft key menus. The unit includes vital status indicators such as power on, warm-up, standby, operating conditions, fault alerts, excess reflected power warnings, and remote status.
Key Features and Specifications:
- Built-in IEEE-488 (GPIB) interface for seamless connectivity.
- 0 dBm input power capability.
- VSWR protection to ensure system integrity.
- Gain control allowing for smooth adjustment.
- RF output sample port for monitoring output signals.
- Auto sleep mode for energy efficiency.
- Monitoring capabilities, including TWT helix current, cathode voltage, collector voltage, heater current and voltage, baseplate temperature, and cabinet temperature.
- Modular design facilitates easy access and maintenance of power supply and RF components.
- Lightweight and compact due to the use of a switching mode power supply.
- Stylish contemporary cabinet suitable for benchtop use, also allowing for rack mounting options.
This amplifier serves diverse applications in Test and Measurement, including EMC RF susceptibility testing, as well as in Industrial and University Research and Development environments.
Functions and Specifications:
- POWER (CW @ OUTPUT CONNECTOR):
Nominal: 70 watts
Minimum: 40 watts
Linear @ 1dB Compression: 10 watts minimum
- FREQUENCY RESPONSE: 18–40 GHz instantaneously
- INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum
- GAIN (at maximum setting): 46 dB minimum
- GAIN ADJUSTMENT: Continuous range of 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 for reflected power exceeding 10 watts.
- Operates without damage or oscillation with any magnitude and phase of source and load impedance.
- May oscillate with unshielded open conditions; connector presence is recommended during testing.
- MODULATION CAPABILITY: Supports AM, FM, or pulse modulation on the input signal, with AM peak envelope power limited to specified output levels.
- NOISE POWER DENSITY: -60 dBm/Hz (maximum) / -65 dBm/Hz (typical)
- HARMONIC DISTORTION: -3 dBc typical (at 18 GHz)
- PRIMARY POWER: 190-265 VAC single phase, 47/63 Hz, 1.0 KVA typical
- COOLING: Forced air cooling via self-contained fans, with air entry and exit at the rear.
- DIMENSIONS: 50.3 x 16.5 x 68.6 cm (19.8 x 6.5 x 27 in)
- EXPORT CLASSIFICATION: EAR99
