2.4G Copper Spring Helix PCB Antenna 2400-2500MHz 4dBi Omni
2.4G Copper Spring Helix PCB Antenna 2400-2500MHz 4dBi Omni
2.4G Copper Omni-Directional Spring Helix Antenna for PCB Board
Boost your wireless project's signal performance with this precision-crafted 2.4G copper omni-directional spring antenna. Designed for direct PCB board soldering, this compact helix antenna covers the full 2400–2500 MHz frequency band — making it an ideal choice for Wi-Fi modules, Bluetooth devices, Zigbee, and other 2.4 GHz wireless applications.
Built from high-quality copper with a 1.5 mm wire diameter and a sturdy spring coil construction, this antenna delivers consistent 360° signal radiation in a small footprint. With a 4 dBi gain, a low standing wave ratio (≤1.8), and a standard 50-ohm impedance, it integrates seamlessly into your RF circuit designs without compromise.
Made in Mainland China.
Key Specifications
- Frequency Range: 2400–2500 MHz (2.4G)
- Antenna Gain: 4 dBi
- Wire Diameter: 1.5 mm
- Ring Diameter: 14 mm
- Welding Length: 20 mm
- Overall Length: 44 mm
- Standing Wave Ratio (VSWR): ≤ 1.8
- Impedance: 50 Ohms
- Mounting: Direct PCB solder (no assembly required)
- Material: Copper helix / spring construction
Why Choose This Spring Antenna?
- ✅ Omni-directional radiation — 360° horizontal coverage for reliable wireless links
- ✅ Compact helix design — fits easily onto space-constrained PCB layouts
- ✅ Low VSWR ≤ 1.8 — efficient power transfer with minimal signal reflection
- ✅ Standard 50Ω impedance — compatible with most RF transceivers and modules
- ✅ No assembly required — simply solder onto your PCB and you're ready to go
- ✅ Customizable — contact us for custom cable lengths or connector types
Ideal Applications
This 2.4G spring antenna is well-suited for a wide range of wireless electronics projects, including:
- Wi-Fi 802.11 b/g/n modules
- Bluetooth and BLE devices
- Zigbee and Z-Wave home automation nodes
- RC remote control systems
- IoT sensor boards and microcontroller projects
- 2.4 GHz drone and robotics controllers
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Frequently Asked Questions
Q: What wireless standards is this 2.4G spring antenna compatible with?
A: This antenna operates across the 2400–2500 MHz band, making it compatible with Wi-Fi (802.11 b/g/n), Bluetooth, BLE, Zigbee, Z-Wave, and other 2.4 GHz wireless protocols. Its 50-ohm impedance matches the RF front-end of most standard wireless modules and transceivers.
Q: How is this antenna mounted to a PCB board?
A: This antenna is designed for direct PCB soldering — no connectors or additional hardware required. The 20 mm welding length allows for a secure and stable solder joint. Simply place the antenna on your PCB pad and solder it in place for immediate use.
Q: Can I order this antenna with a custom connector or cable length?
A: Yes! Custom cable lengths and connector types are available. Please contact us with your specific requirements and our team will be happy to accommodate bulk and custom orders with competitive pricing.
Q: What does a standing wave ratio (VSWR) of ≤1.8 mean for my project?
A: A VSWR of ≤1.8 indicates that most of the RF power from your transmitter is radiated by the antenna rather than reflected back, ensuring efficient wireless transmission and minimizing potential stress on your RF circuitry.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.