Product introduction
Product introduction
| IPEX fourth-generation to SMA radio frequency transfer cable |
| Wire: RF0.81 ultra-fine coaxial cable (outer diameter 0.81mm) |
| Interface type: IPEX&SMA |
| Wire length: 5cm~200cm (length can be customized) |
RF0.81 Ultrafine Coaxial Cable Parameter Description
1. Core parameters
| Parameter | Typical value | Standard |
| Characteristic impedance | 50Ω ± 2Ω | Standard impedance of millimeter wave system |
| Outside diameter | 0.81±0.03mm | One of the thinnest commercial coaxial cables in the industry |
| Central conductor | 1×0.16mm tin-plated copper-clad rigid wire | High-strength tensile strength (fracture force ≥5N) |
| Insulating materials | Foamed polyethylene (Foam PE) | Dielectric constant 1.55 (ultra-low loss key) |
| Shielding layer | Aluminum-magnesium alloy foil + tinned copper winding layer | Coverage rate >98%, shielding efficiency >65dB@10GHz |
| Cover material | Ethylene fluoropropylene copolymer (FEP) | Ultra-thin wall thickness 0.05mm, resistant to 200℃ reflow soldering |
| Propagation speed | 82% speed of light (VF=0.82) | Low-latency transmission |
| Minimum bending radius | 3 mm (static) / 6 mm (dynamic) | Can be bent around the tip of the pen |
2. Frequency and attenuation
| Frequency | Attenuation (dB/m) | Comparison of competitive products (RG178) | Application scenarios |
| 1GHz | 0.95dB/m | 30% lower than RG178 | Bluetooth/Wi-Fi |
| 5GHz | 2.20dB/m | 33% lower | Wi-Fi 6/6E |
| 10GHz | 3.30dB/m | 45% lower | 5G millimeter wave front-end |
| 24GHz | 5.80dB/m | 50% lower | On-board radar module |
| 28GHz | 6.50dB/m | 52% lower | 5G FR2 base station antenna |
| 40GHz | 8.20dB/m | No direct competitors | Satellite communication terminal |
3. Electrical performance
| Parameter | Value | Test conditions |
| Maximum working voltage | 300 V RMS (25°C) | The breakdown voltage is ≥800V |
| Average power capacity | 5W | Thermal limit of the central conductor |
| Electric capacity | 95 pF/m | 1 MHz |
4. Mechanical and environmental characteristics
| Parameter | Value | Test conditions |
| Operating temperature range | -40℃~+150℃ | Short-term resistance 200℃ |
| Tensile strength | ≥15N | IEC 61196 standard |
| Phase stability | ±0.5°/m@28GHz | Minimum requirements for phased array system |
| Plugging and unplugging service life | 100 times (dynamic bending scene) | IEC60512-9-3 |
5. Core application scenarios
5G mobile phone millimeter wave antenna
Length: 50~150mm
Advantages: Replace LCP soft board, cost reduction by 60%
Endoscope wireless image transmission module
Length: 200~300mm
Key: Resistant to high-temperature autoclave (135℃ steam)
UAV FPV image transmission system
Length: 100~200mm
Performance: 28GHz loss <1.3dB (whole machine)
Military-induned single soldier communication equipment
Length: ≤500mm
Reliability: Passed the MIL-STD-810H vibration test
Selection guide
1. Commonly used adaptive cable specifications and characteristics
| Model | Outside diameter | Central conductor | 3GHz loss | Distinguishing feature | Applicable scenarios |
| RG-174 | 2.8mm | 7*0.16mm | 0.82dB/m | Flexible, Easy to install, Low cost | Consumer electronics |
| RG-316 | 2.6mm | 7*0.1mm | 0.84dB/m | High temperature resistance, Military industry standards | High-temperature environment, Test instruments |
| Micro-foam PE line | 1.5~2.2mm | 0.3~0.5mm | 0.50dB/m | Low high-frequency loss | 5G/Wi-Fi |
| Semi-steel wire | 1.0~3.0mm | Solid copper | 0.30dB/m | Relatively stable, Shield it well | Test calibration, Front segment of millimeter wave |
2. Key parameter comparison and selection logic
2.1 Priority of electrical performance
| Parameter | RG-174 | RG-316 | Foamed PE line | Affect |
| Attenuation @6GHz | 1.8dBm/m | 1.7dBm/m | 0.9dBm/m | High-frequency signal integrity |
| Shielding efficiency | 70dB | 90dB | >90dB | Anti-interference ability |
| Impedance stability | ±3Ω | ±2Ω | ±1Ω | Reflection signal suppression |
2.2 Mechanical and environmental adaptability
| Parameter | RG-174 | RG-316 | Foamed PE line |
| Minimum bending radius | 15mm | 25mm | 30mm |
| Temperature tolerance range | -40℃~+85℃ | -65℃~+200℃ | -50℃~+85℃ |
| Tensile strength | Medium | Tall | Low (easy to damage) |
3. Typical application scenarios and cable matchin
3.1 Consumer electronic products (Bluetooth/Wi-Fi)
Cable: RG-174
Reason: cost-sensitive, frequency ≤5GHz, short length (<0.3m) and controllable loss.
3.2 Test instrument jumper (vector network analyzer)
Cable: RG-316 or low-loss foam cable (such as Times LMR-200)
Reason: It needs to be resistant to plugging and low loss (high calibration accuracy requirements).
3.3 On-board radar/5G small base station
Cable: PTFE insulated foam cable (such as Gore G-FLEX 150)
Reason: 6~24GHz low loss demand, outer diameter ≤2mm convenient for wiring.
3.4 Military equipment
Cable: RG-316 (military standard MIL-DTL-17)
Reason: Resistant to extreme temperature and vibration, high shielding requirements
4. Supplementary explanation
4.1 Outer diameter mismatch: MCX connectors usually support 1.0~3.0mm wire diameters, and need to be customized beyond the range (such as micro wires, special MCX heads are required).
4.2 High-frequency loss: RG-174 is twice as high as foam PE wire at 6GHz, and long-distance transmission avoids use.
4.3 Phase stability: For phase-sensitive applications (phased arrays), semi-rigid lines or phase-stable cables (such as Huber+Suhner S100) are preferred.
4.4 Connector level: Gold-plated contact MCX (non-nickel-plated) is selected to ensure a life of >500 plugging and unplugging.
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IPEX fourth-generation to SMA radio frequency transfer cable
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