The Microlab FXR K638AF is a horn antenna component engineered for RF and microwave applications within wireless base stations, distributed antenna systems (DAS), and signal distribution networks. Part of the Microlab FXR product family, the K638AF delivers high-gain performance across specified frequency bands with 50 Ω nominal impedance and silver-plated connectors per QQ-S-365. The device is designed for low passive intermodulation (PIM) environments and supports both average and peak power handling across demanding installations. Operating temperature ranges from −55°C to +150°C depending on configuration. Environmental durability features include moisture sealing to IP68 specifications and RoHS-compliant finishes suitable for corrosive salt fog and harsh outdoor deployments.
Technical Specifications
• Product Type: Horn Antenna
• Manufacturer: Microlab/FXR
• Frequency Range: 1.0 GHz to 3.95 GHz (model-dependent; K638AF falls within Microlab horn antenna bands)
• Impedance: 50 Ω nominal
• VSWR: 1.20:1 max to 1.35:1 max (specification varies by configuration)
• Connector Finish: Silver plate per QQ-S-365
• Operating Temperature: −55°C to +150°C
• Power Rating: Average power 2 W to 80 W; peak power up to 1.5 kW (specification dependent on model variant)
– Key Features
• Low PIM design for sensitive RF environments
• Moisture-sealed construction rated to IP68
• RoHS compliant finishes for environmental compliance
• Corrosion-resistant performance in salt fog conditions
• 50 Ω matched impedance for seamless system integration
– Typical Applications
• Wireless base station antenna arrays
• Distributed antenna systems (DAS)
• RF and microwave signal distribution networks
• High-gain horn antenna installations
– Compatibility & Integration
The K638AF integrates with standard 50 Ω RF systems and complements Microlab FXR attenuators, power dividers, hybrid couplers, terminations, and filters across multi-band wireless architectures.
