The NEC AT-1 is a rigid rectangular waveguide designed for microwave and millimeter-wave signal transmission. This flanged component offers significantly lower loss than coaxial alternatives, making it ideal for high-frequency applications requiring efficient signal propagation across extended distances.
Technical Specifications
Waveguide Type: Rectangular waveguide with rigid hollow metal construction.
Material & Construction: Conductive materials including aluminum alloys (such as 6061-T6) or copper, selected for superior conductivity and mechanical durability.
Flange Configuration: Both ends feature flanged interfaces—one end with 6 threaded holes and the opposite end with 6 unthreaded holes, establishing a standardized mating interface.
Frequency Response: Operating frequency range is determined by physical cross-sectional dimensions. Single-mode propagation occurs above the dominant mode cutoff frequency and below the next higher-order mode cutoff frequency. Attenuation increases significantly below cutoff.
Signal Loss: Waveguides exhibit low attenuation characteristics across their operating band, with loss measured in dB per unit length (dB/100′) and dependent on material properties, surface finish, and operating frequency.
Power Handling: Rigid waveguide construction supports very high peak power levels, with average power capacity varying based on material composition, thermal management, and operating temperature.
– Key Features
• Rigid metal construction for mechanical stability and consistency
• Dual-end flange design with standardized hole patterns
• Low-loss transmission over microwave and millimeter-wave frequencies
• Superior attenuation performance versus coaxial cable alternatives
• High peak power handling capability
– Typical Applications
• Microwave communications systems
• Radar transmission and reception networks
• Satellite communications infrastructure
• High-frequency signal routing in test and measurement systems
– Compatibility & Integration
The AT-1 integrates into systems using standard rectangular waveguide mating interfaces. Flange hole configuration accommodates both threaded and unthreaded mounting surfaces, enabling flexible installation across various RF architectures.
