Description
Amplifier Research 20S4G18 Microwave Amplifier Repair and Calibration
The Amplifier Research 20S4G18 is a solid-state microwave power amplifier — 20 W covering the 4–18 GHz band, used to drive EMC radiated-immunity testing and microwave applications. As an RF amplifier, its faults concentrate in the RF output stage, the power supply, and thermal management — not the low-voltage power-supply faults its category label implies.
June Company repairs and calibrates the AR 20S4G18 for EMC test labs and RF engineering teams.
Common AR 20S4G18 problems we fix
- Overcurrent-protection trips — the amp tripping into protection, repaired so it runs without nuisance shutdowns.
- Cooling-fan failure — a failed fan leading to thermal shutdown, replaced.
- Low or no RF output — output-module or driver-stage failure, repaired so it delivers rated power across 4–18 GHz.
- Gain flatness off — gain drift across the band, recalibrated.
- Control or interface faults.
FAQs
My 20S4G18 keeps tripping or overheating — fixable? Yes. Protection and cooling faults are repairable, and we verify rated power and gain across the band, with a NIST-traceable certificate.
Is gain flatness verified? Yes — checked across 4–18 GHz against our standards.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.
Brand
Amplifier Research Repair
Amplifier Research (AR) provides high-performance RF and microwave amplifiers, antennas, test systems, and other related products. Their products are widely used in various industries, including telecommunications, military, aerospace, and medical fields. Here are some key product categories offered by Amplifier Research and their functionalities:
1. RF and Microwave Amplifiers
Solid State Amplifiers: Provide high power and wide bandwidth for applications in testing, communications, and defense. Available in various frequency ranges from DC to 50 GHz and power levels up to several kilowatts.
Traveling Wave Tube Amplifiers (TWTAs): High-power amplifiers for applications requiring very high power in the microwave frequency range. Often used in radar, electronic warfare, and communication systems.
2. Antennas
Broadband Antennas: Cover wide frequency ranges and are used in EMC testing, signal monitoring, and communications. Types include log periodic, horn, and biconical antennas.
Specialty Antennas: Designed for specific applications such as EMC testing, shielding effectiveness, and other specialized tests.
3. Test Systems
EMC Test Systems: Complete systems for testing electromagnetic compatibility (EMC) to ensure that electronic devices meet regulatory standards. These systems include signal generators, receivers, and software for comprehensive EMC testing.
Radiated Immunity Test Systems: Used to test the immunity of electronic devices to radiated electromagnetic fields, ensuring they can operate correctly in their intended electromagnetic environment.
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