The **SWC-75SF-R5** is a high-performance **Waveguide-to-Coaxial adapter** manufactured by SAGE Millimeter (now Eravant). It is designed to bridge the gap between rectangular waveguide systems and coaxial cable systems in the E-band frequency range. --- ### 1. Key Technical Specifications Below are the primary electronic and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Frequency Range** | 60 GHz to 90 GHz | | **Waveguide Size** | WR-12 | | **Coaxial Connector** | 1.0 mm (Female) | | **Insertion Loss** | 1.0 dB (Typical) | | **Return Loss** | 15 dB (Typical) | | **Power Handling** | 10 Watts (CW Max) | | **Orientation** | Right Angle | --- ### 2. Functional Breakdown The SWC-75SF-R5 serves three main electronic functions: * **Mode Conversion:** It converts the **TE10 mode** (transverse electric) found in rectangular waveguides into the **TEM mode** (transverse electromagnetic) used in coaxial lines. * **Impedance Matching:** It ensures that the characteristic impedance of the WR-12 waveguide matches the 50-ohm impedance of the 1.0 mm coaxial connector to minimize signal reflections. * **Low-Loss Transmission:** Because it operates in the Millimeter Wave (mmWave) spectrum, it is precision-machined to ensure minimal signal degradation (Insertion Loss) across the E-band. --- ### 3. Physical Construction The "R5" suffix typically denotes specific design revisions or mounting configurations. * **Material:** Usually constructed from gold-plated oxygen-free high-conductivity (OFHC) copper or aluminum for maximum conductivity and corrosion resistance. * **Connector Type:** It uses a **1.0 mm connector**, which is the standard for frequencies up to 110 GHz. These are extremely fragile and require precise torque settings. * **Form Factor:** The **Right Angle** design allows for compact integration in test benches or radar enclosures where straight-line space is limited. --- ### 4. Common Applications * **E-Band Radar:** Used in automotive radar development and testing. * **5G/6G Research:** Essential for high-frequency backhaul equipment prototyping. * **Test & Measurement:** Connecting a Waveguide-based antenna to a Vector Network Analyzer (VNA) with coaxial ports.