AR RF/Microwave Instrumentation 40T18G26A
40 Watt CW, 18 - 26.5 GHz Amplifier, RF in - 2.92mm, RF out - WR-42
The Model 40T18G26A is a self contained, forced air cooled, broadband traveling wave tube (TWT) microwave amplifier designed for applications where wide instantaneous bandwidth, high gain and moderate power output are required. A reliable TWT provides a conservative 40 watts minimum at the amplifier output connector. Stated power specifications are at the fundamental frequency. The amplifier's front panel digital display shows forward and reflected output plus extensive system status information accessed through a series of menus via soft keys. Status indicators include power on, warm-up, standby, operate, faults, excess reflected power warning and remote. Standard features include a built-in IEEE-488 (GPIB) interface, 0dBm input, VSWR protection, gain control, RF output sample port, auto sleep, plus monitoring of TWT helix current, cathode voltage, collector voltage, heater current, heater voltage, baseplate temperature and cabinet temperature. Modular design of the power supply and RF components allow for easy access and repair. Use of a switching mode power supply results in significant weight reduction. Housed in a stylish contemporary cabinet, the unit is designed for benchtop use but can be removed from the cabinet for rack mounting. The Model 40T18G26A provides readily available RF power for a variety of applications in Test and Measurement, (including EMC RF susceptibility testing), Industrial and University Research and Development, and Service applications. These sub-octave amplifiers feature moderate harmonic content.
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Base Model
Standard Rental Accessories*
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Adapter HPIB
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Cord Power
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Shipping Crate Small Streamline Cable Assembly
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CD 40T18G26A Amplifier Technical Manual
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Key for Keylock Switch
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Cover Plate Kit WR-42-34
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AR RF/Microwave Instrumentation 40T18G26A Spec Sheet
Content is AI-generated. Verify critical details with manufacturer-provided resources.
What is the AR RF/Microwave Instrumentation 40T18G26A?
The 40T18G26A is a self-contained, air-cooled, broadband traveling wave tube (TWT) microwave amplifier designed for applications requiring wide instantaneous bandwidth, high gain, and moderate power output. It is capable of providing a conservative 40 watts minimum at the amplifier output connector across the frequency range of 18GHz to 26.5GHz.
What are the typical applications for the 40T18G26A?
This amplifier is ideal for use in Test and Measurement, including EMC RF susceptibility testing, Industrial and University Research and Development, and Service applications. It is particularly suitable for sub-octave applications with moderate harmonic content.
What is the rated power output of the 40T18G26A?
The amplifier provides a nominal power output of 45 watts, with a guaranteed minimum of 40 watts. It also delivers 10 watts minimum linear power at 1 dB compression.
What features does the 40T18G26A offer?
Key features include a digital front panel display showing forward and reflected output along with system status information, built-in IEEE-488 (GPIB) interface, 0dBm input VSWR protection, gain control, an RF output sample port, and extensive monitoring capabilities for various operational parameters.
How is the 40T18G26A cooled?
The amplifier employs forced air cooling with self-contained fans, with air entry and exit located at the rear of the unit.
What are the modulation capabilities of the 40T18G26A?
The 40T18G26A can faithfully reproduce AM, FM, or pulse modulation appearing on the input signal, with AM peak envelope power limited to the specified power.
What are the primary power requirements for the 40T18G26A?
The amplifier requires a primary power supply of 99-260 VAC, 50/60 Hz, single-phase, consuming a maximum of 850 VA.
What are the connectivity options for the 40T18G26A?
It includes Type K female connectors for RF input and output sample port on the rear panel, a WR-42 waveguide flange for RF output, an IEEE-488 port for GPIB interface, and a DB-15 female connector for interlock purposes.
What are the model configurations available for the 40T18G26A?
The amplifier is available in several configurations from M1 to M7, which vary based on the inclusion of features like cabinet modifications for rack mounting (E1C), slides (E2S), front pull handles (E3H), special flatness (S2F), and reflected power ports (S1R, S3F).
What are the mechanical specifications of the 40T18G26A?
The amplifier measures 50.3 cm x 16.5 cm x 68.6 cm and weighs approximately 30 kg. It is designed for benchtop use but can be rack-mounted by removing the outer enclosure.
