Description
The 2.92mm interface, often called the K-connector, is designed to be mechanically compatible with SMA and 3.5mm connectors while extending the frequency range significantly. This male-to-male adapter acts as a transparent bridge, maintaining a precise 50 Ohm signal path. Unlike standard SMA connectors which may experience “moding” at higher frequencies, the 2.92mm design utilizes an air dielectric to ensure stable, mode-free performance up to 40 GHz.
Constructed from passivated stainless steel, these adapters are built for durability and repeatable performance across hundreds of mating cycles. The center contacts are typically made of gold-plated beryllium copper, providing superior electrical conductivity and mechanical resilience. These couplers are a staple in high-speed digital characterization and laboratory test setups where precision and phase stability are paramount.
Key Technical Advantages
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Extended Frequency Range: Mode-free operation up to 40 GHz, making it ideal for Ka-band and 5G NR millimeter-wave applications.
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Intermateable Versatility: Mechanically compatible with SMA and 3.5mm connectors, allowing for versatile use in existing RF labs.
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Superior Durability: The stainless steel body resists wear and environmental corrosion, ensuring long-term reliability in field and lab use.
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Low VSWR & Loss: Precision air-dielectric construction minimizes signal reflections (VSWR typically ≤ 1.2:1) and insertion loss.
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High Phase Stability: Engineered to maintain consistent electrical length, which is critical for phased-array antennas and synchronized timing systems.
Key Features
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Adapter Type: Straight / In-Series Gender Changer.
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Interface: 2x 2.92mm Male (Plug).
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Impedance: 50 Ohm.
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Frequency Range: DC to 40 GHz.
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Body Material: Passivated Stainless Steel.
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Contact Material: Gold-Plated Beryllium Copper.
🔹 Applications:
- High-frequency RF cable extension
- Microwave and millimeter-wave systems
- RF testing and calibration
- Lab and research applications
- Signal transmission up to high GHz
- Precision RF systems
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