SMA to IPEX RF Cable Ultimate Guide | 5G Antenna Connection Solutions

**Keywords**: SMA to UFL RF Cable, IPEX Antenna Extension, High-Frequency Signal Cable, Router Modification Cable, 5G RF Connectors
#### **1. Product Definition & Interface Specifications**
The SMA Female to IPEX UFL (U.FL) cable is a **micro-coaxial solution** designed for high-frequency signal transmission, connecting SMA-interface devices (e.g., base station testers) with IPEX MHF4 connectors (common in 5G modules/router antennas). Featuring PTFE dielectric layers and silver-plated conductors, it supports up to **18GHz frequency transmission** with ≤0.5dB/m insertion loss.
**Key Advantages**:
- 360° torsion-resistant IPEX connectors (1,000 mating cycles)
- Ultra-slim 1.13mm cable diameter for compact spaces
- Phase stability ±2°@6GHz
#### **2. Typical Application Scenarios**
1. **5G CPE Device Modification**:
Extends external high-gain SMA antennas to boost signal coverage for Huawei/ZTE 5G routers.
2. **Drone FPV Systems**:
Links flight controller IPEX ports to SMA video transmitters, reducing 2.4GHz band interference.
3. **Base Station Testing**:
Enables precise signal coupling between vector network analyzers (VNA) and DUTs.
### **3. Critical Performance Comparison**
| Parameter | Premium Standard | Substandard Risks |
|---------------------|------------------------|--------------------------|
| **Frequency Range** | DC-18GHz | VSWR spikes above 12GHz |
| **Insertion Loss** | ≤0.5dB/m@6GHz | Signal decay >1dB/m |
| **Impedance** | 50Ω±1Ω | Power loss from mismatch |
| **Bend Radius** | ≥3mm | Dielectric layer cracks |
**Selection Checklist**:
- Prioritize RG178/RG316 cables (superior to PVC variants)
- Verify return loss (RL＞20dB) at target frequencies
- Validate operating temperature (-40°C to +85°C industrial grade)
#### **4. High-Frequency FAQ**
**Q1: Can I replace SMA male-to-IPEX cables directly?**
A: Confirm port polarity—SMA female typically connects to test equipment RX ports.
**Q2: How does cable length affect 5G signals?**
A: Every 10cm increase adds ≈0.1dB insertion loss; keep ≤30cm for 28GHz applications.

**Q3: How to prevent IPEX connector disengagement?**
A: Use crimped terminals (not soldered) with 3D-printed strain relief brackets.
#### **5. Industry Evolution**
For 6G terahertz communications, next-gen cables employ **air-dielectric coaxial structures** achieving 0.3dB/m loss@30GHz and extreme-temperature resilience (-65°C).