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The QMA connector is a fast locking RF coaxial connector, optimized based on the SMA interface standard, developed specifically for high-frequency communication (DC-18GHz) and compact space installation scenarios. It features fast plugging, high-density deployment, and low passive intermodulation (PIM) characteristics. Its core design highlights include: fast locking mechanism: replacing traditional threads with spring locks, installation speed 10 times faster than SMA, and no need for torque wrenches; Compact structure: The outer diameter size is similar to SMA, but the packaging density is higher, suitable for small spaces such as mobile base stations and distributed antennas;
The QMA connector is a fast locking RF coaxial connector, optimized based on the SMA interface standard, developed specifically for high-frequency communication (DC-18GHz) and compact space installation scenarios. It features fast plugging, high-density deployment, and low passive intermodulation (PIM) characteristics. Its core design highlights include: fast locking mechanism: replacing traditional threads with spring locks, installation speed 10 times faster than SMA, and no need for torque wrenches; Compact structure: The outer diameter size is similar to SMA, but the packaging density is higher, suitable for small spaces such as mobile base stations and distributed antennas;
| Plating | Nickel/gold |
| Material | Brass |
| Insulator | PTFE/Plastic |
| ROHS | IS09001:2015 |
| Pin contact | Brass |
| Risilent contact | Beryllium copper |
| O-ring seling | 6146 silicon |
| Elastic contact | Tin brass with gold or sliver plated |
| Produce equipment | CNC |
| Connector type | smc male rg316 |
1. QMA connector core performance parameters electrical characteristics:
Frequency range: standard type DC-6GHz, enhanced type extended to DC-18GHz;
Insertion loss: ≤ 0.05 × √ f dB (f in GHz), return loss ≥ 32dB@DC-3GHz;
Power capacity: 70W@2.2GHz Test voltage 1000V rms.
2. Environmental adaptability:
Protection level: IP67 (paired state), some models reach IP68 (waterproof encapsulation molding);
Temperature range: -40 ℃ to+125 ℃, suitable for extreme industrial environments.
3. Typical application scenarios; Mobile communication: 5G base station antenna interface, distributed antenna system (DAS) high-frequency signal transmission; Compact connection requirements for microwave relay equipment and satellite communication modules.
4. Industry and testing: rapid deployment of RF modules such as high-frequency filters and combiners; Interface adaptation for high-precision testing equipment such as vector network analyzers and spectrometers.
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