The **SWC-151M-R1** is a high-performance **Waveguide-to-Coaxial Adapter** designed for millimeter-wave applications. It serves as a bridge between rectangular waveguide systems and coaxial cables, specifically for the **V-Band** frequency range. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and mechanical characteristics of the SWC-151M-R1: | Parameter | Specification | | :--- | :--- | | **Frequency Range** | 50.0 to 75.0 GHz | | **Waveguide Size** | WR-15 (UG-385/U Flange) | | **Connector Type** | 1.85mm (V) Male | | **Insertion Loss** | 0.5 dB (Typical) | | **VSWR** | 1.30:1 (Typical) | | **Material** | Aluminum / Brass / Gold Plated | | **Orientation** | Right Angle | --- ### 2. Physical Design & Components The "R1" designation typically refers to the **Right Angle** configuration. This design is crucial for compact system integration where space is a constraint. #### Core Electronic Components: * **The Transition Element:** A precision-machined internal probe or "launcher" that converts the TE10 mode electromagnetic wave from the waveguide into the TEM mode for the coaxial line. * **The 1.85mm Connector:** Often referred to as a **V-connector**. It is designed to remain mode-free through 67 GHz (and can reach 75 GHz in specialized adapters), ensuring signal integrity at extremely high frequencies. * **The Waveguide Flange:** A standard **WR-15** interface with a **UG-385/U** pattern, ensuring a leak-proof and low-loss connection to other V-band components. --- ### 3. Common Applications These adapters are essential in high-frequency electronics for: 1. **Test and Measurement:** Connecting V-band signal generators or network analyzers to waveguide-based Devices Under Test (DUT). 2. **Radar Systems:** High-resolution imaging and automotive radar prototyping. 3. **5G/6G Research:** Testing backhaul equipment and satellite communication links. 4. **Electronic Warfare (EW):** Integration into specialized microwave sub-assemblies. --- ### 4. Handling Precautions Due to the delicate nature of millimeter-wave components: * **Torque Specs:** Always use a calibrated torque wrench for the 1.85mm connector (typically 8 in-lbs) to avoid damaging the internal pin. * **Cleanliness:** Ensure the waveguide aperture is free of dust, as microscopic particles can cause significant signal reflections at 75 GHz.