The Miteq CD-402-802-20S is a 50-ohm coaxial directional coupler engineered for RF and microwave systems operating from 4 to 8 GHz. Built on stripline construction, this component delivers 20 dB coupling with ±1.25 dB flatness and directivity of 20 dB typical. Primary insertion loss reaches 0.75 dB maximum, while secondary coupled insertion loss is limited to 0.25 dB maximum. Both primary and secondary ports maintain a maximum VSWR of 1.25:1. The coupler handles 50 watts average power and peaks at 3 kW, with power handling guaranteed at source and load VSWR of 1.2:1. Operating temperature spans 0 to 70 °C; storage extends from -30 to +85 °C. SMA Female connectors provide RF interface. Manufactured to ISO 9001, MIL-STD-202F, MIL-Q-9858A, and MIL-STD-45662 standards, the CD-402-802-20S suits communication, signal processing, and electronic warfare integration.
Technical Specifications
• Frequency Range: 4 to 8 GHz
• Coupling: 20 dB ±1.25 dB max.
• Insertion Loss (Primary): 0.75 dB max.
• Insertion Loss (Secondary Coupled): 0.25 dB max.
• Directivity: 20 dB typical
• VSWR (Primary & Secondary): 1.25:1 max.
• Average Power: 50 watts max.
• Peak Power: 3 kW max.
• Impedance: 50 ohms
• Operating Temperature: 0 to 70 °C
• Storage Temperature: -30 to +85 °C
• Construction: Stripline
• Connectors: SMA Female
– Key Features
• Flat coupling response across 4–8 GHz bandwidth
• Low primary-path insertion loss minimizes signal degradation
• High directivity supports accurate coupled-port monitoring
• Dual VSWR performance ensures impedance consistency on both ports
• Peak power rating to 3 kW accommodates pulsed RF systems
– Typical Applications
• RF and microwave communication systems
• Signal monitoring and power measurement networks
• Electronic countermeasure (ECM) systems
• Directional power detection and coupling circuits
– Compatibility & Integration
Designed for 50-ohm system integration with standard test fixtures. MIL-STD qualification enables deployment in military and aerospace RF architectures. Temperature ratings support field operation across wide ambient ranges.
