AT-AM4-1844-18L by AT Microwave

Introducing the AT-AM4-1844-18L: A High-Performance x4 Frequency Multiplier by AT Microwave
If you’re looking for a broadband, compact, and high-output frequency multiplier for millimeter-wave applications, the AT-AM4-1844-18L x4 Active Multiplier from AT Microwave is a standout choice. Designed for performance, versatility, and reliability, this device is ideal for engineers working in 5G communication, radar systems, test and measurement, and RF-over-Fiber (ROF) systems.
Key Features
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Input Frequency: 4.5 – 11 GHz 
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Output Frequency: 18 – 44 GHz 
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Multiplier Factor: x4 
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Output Power: +18 dBm (typical) 
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Low Harmonic Content: >15 dBc suppression for x3 and x5 harmonics 
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Compact and Lightweight: 80g, gold-plated copper housing 
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Input Connector: SMA Female 
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Output Connector: 2.92mm Female 
Performance That Delivers
The AT-AM4-1844-18L is engineered for broadband performance, delivering high output power with only a low-level input drive. It operates effectively across a wide output frequency range of 18 GHz to 44 GHz, with a consistent output power of +18 dBm typical. The integrated input and output buffers enhance gain and reduce sensitivity to source/load variations.
Its excellent harmonic suppression—greater than 15 dBc for unwanted x3 and x5 harmonics—ensures clean spectral performance, making it a dependable multiplier in RF systems where signal purity is critical.
Ideal for Modern RF Applications
This x4 multiplier is particularly well-suited for cutting-edge applications, including:
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5G Infrastructure (28/39 GHz bands) 
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Radar Systems and Sensing 
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High-Frequency Test Equipment 
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RF-over-Fiber (ROF) Transmission Systems 
Whether you’re working on lab setups or integrating into advanced telecom systems, the AT-AM4-1844-18L offers the bandwidth, power, and stability your system needs.
Mechanical and Electrical Specs
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Voltage Supply: +5V to +8V 
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Current Consumption: 280 mA typical 
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Operating Temperature: -45°C to +85°C 
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Max Input Power: +15 dBm 
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Size & Weight: Compact form factor, 80g without heatsink 
Note: A heatsink is recommended if the case temperature exceeds 50°C.
Configuration Options
AT Microwave offers flexible configurations:
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Standard Module with DC Power Supply 
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Low-Cost Bench-Top Unit (PN-LCBT) with AC/DC adapter 
Learn More or Request a Quote
As an official distributor of AT Microwave in Europe, bq-microwaveis proud to offer the AT-AM4-1844-18L. Visit our product page or contact us directly for datasheets, pricing, and availability.






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