he Pasternack PEWCP1019 is a WR-90 directional waveguide broadwall coupler designed for X-band microwave applications from 8.2 GHz to 12.4 GHz. It is commonly used in radar systems, microwave radio, satellite communications, attenuation measurements, and RF test benches.
Key Specifications
- Frequency Range: 8.2 GHz to 12.4 GHz
- Waveguide Size: WR-90
- Coupling Level: 30 dB nominal
- Directivity: 40 dB typical
- Insertion Loss: 0.15 dB typical
- VSWR: 1.05:1 typical
- Flange Type: UG-39/U Square Cover Flange
- Construction: Painted copper alloy body and flanges
Common Applications
- RF power monitoring
- Signal sampling
- Source leveling
- Radar and satellite systems
- Microwave laboratory testing
- Frequency monitoring with minimal main-line loss



