Amplifier Research 15T4G18M1

The Amplifier Research 15T4G18M1 is a solid-state TWT microwave amplifier delivering 15 W CW output across 4.2–18 GHz instantaneous bandwidth. This forced-air-cooled unit combines high gain, broadband coverage, and inherent mismatch tolerance - operating without damage across any load impedance magnitude or phase. Forward and reflected power display via front-panel digital interface enables real-time monitoring and menu-driven system status access.

Technical Specifications

Frequency Range: 4.2–18 GHz instantaneous bandwidth Power Output:

• 15 W CW minimum (at output connector)


• 10 W in low harmonic modes


• 7 W minimum linear at 1 dB compression Gain: 41.0 dB typical Harmonic Distortion:


• 4.2–4.5 GHz: −0 dBc maximum, −1 dBc typical


• 4.5–5 GHz: −1 dBc maximum, −2 dBc typical


• 5–7 GHz: −2.5 dBc maximum, −4 dBc typical


• 7–10 GHz: −5 dBc maximum, −9 dBc typical


• 10–12 GHz: −8 dBc maximum, −12 dBc typical


• Above 12 GHz: −20 dBc maximum, −30 dBc typical Impedance: 50 ohms Power Input: 99–260 VAC, 50–60 Hz, single phase

Key Features

• Mismatch-tolerant design operates without damage or oscillation across any source and load impedance


• Output power foldback protection safeguards against excessive reflected power


• Faithful reproduction of AM, FM, and pulse modulation on input signal; AM peak envelope power limited to specified output


• Self-contained forced-air cooling for simplified deployment

Interfaces

• RF Input: Type N female (rear panel)


• RF Output: Type TNC female (rear panel)


• RF Output Sample Port: Type N female (rear panel)


• GPIB: IEEE-488 connector (f)


• Interlock: DB-15 female (rear panel)

Typical Applications Microwave testing, radar systems, and communication signal amplification demanding wide instantaneous bandwidth and moderate power output.