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2.4GHz Duck Antenna RP-SMA
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A 2.4 GHz rubber duck antenna with 2.2 dBi gain and a reverse-polarity SMA (RP-SMA) connector. At 100 mm (4″) long with 50 Ω impedance, it's a straightforwar...
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A 2.4 GHz rubber duck antenna with 2.2 dBi gain and a reverse-polarity SMA (RP-SMA) connector. At 100 mm (4″) long with 50 Ω impedance, it's a straightforward way to add an external antenna to WiFi, Bluetooth, ZigBee, or other 2.4 GHz RF modules.
Key Features
- 2.2 dBi Gain – Omni-directional coverage for general-purpose wireless
- RP-SMA Connector – Reverse-polarity SMA, the standard on most WiFi hardware
- 50 Ω Impedance – Standard match for RF circuits
- 100 mm (4″) Length – Compact rubber duck form factor
Ideal For
- Prototyping with 2.4 GHz RF modules and ICs
- WiFi, Bluetooth, and ZigBee devices with RP-SMA sockets
- XBee and similar wireless transceivers
Package Contents
- 1× 2.4 GHz Duck Antenna (RP-SMA)
Jargon buster
Plain-language definitions for the technical terms used above.
- Impedance
- Impedance is the total opposition a component or circuit presents to alternating current, measured in ohms, combining resistance with frequency-dependent reactance. It appears in many contexts, such as matching a speaker's impedance (for example 4 ohm or 8 ohm) to an amplifier or the input and output impedance of signal circuits, and a correct match helps avoid weak signals, distortion or damage.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
- SMA
- SMA is a small threaded coaxial (RF) connector widely used to attach antennas and other radio-frequency cables. A device with SMA antenna ports needs antennas or pigtails with matching SMA connectors, or a suitable adapter, to connect to them.
- Zigbee
- A low-power wireless standard commonly used by smart home sensors, switches, and lights. It matters if you want the board to communicate with Zigbee devices or act as part of a home automation network.
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