2.4GHz Copper Tube Antenna – 2dBi Omnidirectional

The 2.4GHz-Copper-Antenna is a compact omnidirectional antenna designed for 2.4GHz wireless communication systems, including WiFi, Bluetooth, ZigBee, and proprietary RF modules used in IoT and embedded projects. Its radiating element is made of copper (Cu), which provides good conductivity and stable performance across the 2400MHz to 2500MHz frequency band. The antenna is housed in a durable tube-style enclosure and terminates in an SMA male connector, making it directly compatible with a wide range of wireless modules, routers, development boards (Arduino, ESP32, Raspberry Pi), and custom PCB designs that expose an SMA female or IPEX-to-SMA pigtail interface.

The antenna offers a nominal gain of approximately 2dBi with an omnidirectional radiation pattern, meaning it radiates and receives signals roughly equally in all horizontal directions—ideal for access points, sensor nodes, and mobile installations where the antenna orientation relative to the peer device is not fixed. The 50Ω impedance matches standard RF front-ends, and the VSWR is specified at ≤2.0 across the operating band, ensuring efficient power transfer with minimal reflection. Efficiency is typically above 70–75%, and the antenna can handle input power levels up to 2W or more depending on the variant.

The copper tube construction provides mechanical rigidity and resistance to vibration, while the compact form factor (length typically in the 100–120mm range for the full assembly) allows it to be mounted directly on the equipment or routed via a short extension cable. This antenna is a passive RF component—it does not include an amplifier, tuner, or active circuitry. Its performance depends on the quality of the ground plane and the RF layout of the host device. For best results, the antenna should be kept clear of metal surfaces and oriented vertically for maximum horizontal coverage.