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Description & Specification
18 GHz to 26.5 GHz WR-42 Waveguide to Coaxial Adapter
Model: WC-42-PBR-E1-KM | K-Male Connector | 220W Max Power
The WC-42-PBR-E1-KM is a high-performance Waveguide to Coaxial Adapter professionally engineered for precision K-Band operations within the 18 GHz to 26.5 GHz spectrum[cite: 222, 223, 234]. Optimized for professional Signal Security operations and mission-critical microwave links[cite: 234]. Featuring a precision-machined aluminum body and high-durability Stainless Steel 303 K-Male connector, it ensures low insertion loss and unwavering stability for advanced Signal Defense deployments and high-frequency laboratory measurements[cite: 227, 228, 230, 234].
Technical Specifications
Electrical Performance
| Frequency Range | 18.00 - 26.50 GHz [cite: 223, 257] |
| Waveguide Standard | WR-42 / R220 / WG20 [cite: 222, 251, 253, 254, 255] |
| Cutoff Frequency (Lowest Mode) | 14.051 GHz [cite: 257] |
| V.S.W.R (Max) | 1.25 : 1 [cite: 226] |
| Maximum Power Handling | 220 Watts (CW) [cite: 223] |
| Impedance | 50 Ohm [cite: 259] |
Mechanical & Construction
| Dimensions (W x H x L) | 22.40 x 22.40 x 43.80 mm |
| Flange Type | PBR 220 |
| Body Material | High-Grade Aluminum |
| Connector Type | 2.92mm K-Male (Stainless Steel 303) |
| Weight (Estimate) | 18.39 g |
| Manufacturing Origin | Taiwan Design / Made in Taiwan [cite: 232] |
Key Tactical & Lab Features
220W Power Reliability
Engineered with precision thermal management to handle robust continuous power loads up to 220W, ideal for high-intensity laboratory testing and tactical signal management[cite: 223, 234].
Precision Signal Integrity
Optimized internal transition geometry (10.668 x 4.318 mm) ensures minimal signal reflection and low insertion loss across the entire 18-26.5 GHz spectrum[cite: 257, 259, 264, 266].
Tactical Signal Security
Designed to support Signal Defense infrastructure, providing a reliable link for interference mitigation and professional K-Band surveillance[cite: 234].
Ruggedized SUS 303 Interface
Equipped with a high-durability stainless steel 303 connector to ensure repeatable mechanical coupling and superior electrical stability in demanding field use[cite: 228, 234].
Request a Professional Quote
Contact our engineering team to obtain individual V.S.W.R plots, customized flange requirements, or integrated RF sub-assembly solutions[cite: 232].
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