2.4G Ultra-Short WiFi Bluetooth Zigbee Antenna SMA 30mm

Compact 2.4G Omnidirectional Antenna with SMA Connector

Upgrade your wireless project with this ultra-compact 2.4G rubber sleeve antenna. At just 30mm long, it is purpose-built for space-constrained builds where a full-size antenna simply won't fit — perfect for WiFi modules, Bluetooth devices, Zigbee hubs, routers, IoT nodes, and DIY electronics projects. The omnidirectional design delivers consistent 360° signal coverage, while the robust rubber sleeve protects the internal element against everyday handling.

Key Specifications

• Frequency Range: 2400–2500 MHz (2.4 GHz band)
• Gain: 1 dBi
• Maximum Power: 50 W
• Impedance: 50 Ohms
• Connector Type: SMA (compatible with SMA-KE socket)
• Antenna Length: 30 mm (3 cm)
• Style: External rubber / glue-stick omnidirectional
• Quantity: 1 piece

Why Choose This Antenna?

• ✅ Miniature form factor — ideal for tight enclosures, PCB assemblies, and portable devices
• ✅ Omnidirectional coverage — no need to point the antenna; signal radiates in all directions
• ✅ Standard SMA connector — universally compatible with a wide range of modules and breakout boards
• ✅ Durable rubber sleeve — protects the element and provides a secure, non-slip grip
• ✅ Broad compatibility — works with ESP8266, ESP32, CC2530, nRF24, Raspberry Pi hats, and similar 2.4 GHz hardware

Compatible Applications

This antenna is a great fit for:

• WiFi routers, access points, and extenders
• Bluetooth audio and data modules
• Zigbee coordinators and end-devices
• Smart home automation controllers
• RC transmitters and receivers
• Industrial IoT sensors and gateways

Made in Mainland China.

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Frequently Asked Questions

Q: What connector type does this 2.4G SMA antenna use?

A: This antenna is fitted with a standard SMA connector and is compatible with SMA-KE sockets. SMA is one of the most common RF connector standards, making it compatible with a huge range of WiFi, Bluetooth, and Zigbee modules available today.

Q: Is this antenna suitable for Zigbee smart home devices?

A: Yes! The antenna operates across the 2400–2500 MHz frequency band, which covers the standard 2.4 GHz channel used by Zigbee, WiFi (802.11 b/g/n), and Bluetooth protocols. It is an excellent external upgrade for Zigbee coordinators, smart home hubs, and IoT gateways that accept an SMA connector.

Q: How does this antenna compare to a full-size 2.4G antenna?

A: At just 30 mm (3 cm) in length, this is a miniaturized antenna designed for space-constrained enclosures. The trade-off is a modest 1 dBi gain, which is ideal for short-to-medium range applications. If your use case requires long-range performance, a larger high-gain antenna may be more suitable — but for compact device builds, this mini antenna is an excellent choice.

Q: What is the maximum power this antenna can handle?

A: This antenna supports a maximum input power of 50 W, which is far above the output levels of typical consumer WiFi, Bluetooth, and Zigbee modules, making it more than adequate for virtually all hobbyist and professional IoT applications.

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.