Antenna 9dBi Bluetooth WiFi 2.4GHz Omnidirectional w/RP-SMA 2400MHz Alfa ARS-N19

Antenna 2.4GHz 9dBi Omni-Directional WiFi w/ RP-SMA-male connector

• Omni Directional Antenna with articulating RP-SMA (male) connector for 2.4GHz WiFi / wireless networks, Bluetooth, Zigbee. Option: This antenna combined with magnetic mount.

• This is a very special low-price offering of a very high quality antenna, due to Data Alliance having a large overstock of inventory of this antenna.   Alfa part # ARS-N19 (Data Alliance part# A5)

• Compatible with Wireless Access Points & WiFi USB adapters & devices that have RP-SMA antenna jacks.

Omni directional dipole antenna: Radiates signal with a beam of 360 degrees; also receives signal from 360 degrees around it.

Compatibility with wireless standards & applications:

This omni directional antenna operates within the 2.4 to 2.5GHz frequency band, featuring:

• Broadband VSWR < 1.5 for minimal signal reflection and efficient power transfer across the band

• 50 Ohm impedance, ensuring optimal matching with standard RF systems and minimizing signal loss

• Vertical polarization, enhancing compatibility with systems designed for vertically polarized signals

Supported Wireless Protocols & Technologies

• Wi-Fi Standards (2.4GHz):
  Compatible with IEEE 802.11N, 802.11G, 802.11B, 802.11AH

• Short-range and IoT Protocols:
  Fully supports Bluetooth, ZigBee, Wi-Fi HaLow and other ISM band applications

• Machine-to-Machine (M2M) & Telemetry:
  Suitable for applications requiring consistent vertical polarization such as remote monitoring, mesh networking, and industrial telemetry

Mechanical & RF Interface Compatibility

• Designed for use with devices featuring RP-SMA antenna ports, including:

  • Wireless access points

  • Embedded modules

  • Bluetooth adapters

  • Industrial IoT terminals

Radiation Pattern & Use Cases

• Omni-directional radiation with 360° horizontal beamwidth:

  • As a Bluetooth antenna: Enables uniform signal coverage for transmission and reception in all directions

  • As a Wi-Fi client antenna: Capable of connecting to access points regardless of orientation

• Compact, portable form factor allows integration into mobile deployments or storage in small enclosures (e.g., laptop bags).

ROHS 3 & REACH compliant: Antenna, cable and connector are all compliant with ROHS 3 and REACH.

The antenna exhibits outstanding impedance matching within the 2.4 to 2.5 GHz frequency range. The VSWR is close to 1, which is ideal, and the return loss values are significantly negative, especially at 2.450 GHz. This indicates that most of the input power is efficiently radiated, with minimal reflection, ensuring high efficiency and strong performance. The impedance remains near 50 ohms, confirming excellent matching with the system. Additionally, the phase response and signal behavior are stable, with no significant distortions across the band.

Mounts directly onto RP-SMA(female) connector of access point, bridge, USB WiFi adapter, or booster

See other magnetic bases that fit this antenna and have antenna cables with other types of connectors

RP-SMA Connector Characteristics:

• RP SMA Characteristics and Key Information
• RP SMA Connector Materials Composition
• We offer an RP-SMA wrench to assist in installing antennas, cables and adapters with SMA or RP-SMA connector(s).
• RP-SMA-male connector fits items that have an RP-SMA (female) jack/connector.
• Articulating (Bendable) Right Angle: This antenna can be angled up to 90 degrees (articulating right angle) or positioned straight. The articulating (bendable) right-angle isn’t weatherproof: Water can seep into the angled part of the antenna. Articulating right-angle antennas are therefore recommendable for indoor use or protected outdoors, i.e. under an eave. If you need a weatherproof dipole antenna, you should choose either a straight dipole or one with a fixed right angle. See our weatherproof antennas .

Dipole Antennas: 2.4GHz

RELATED PRODUCTS & PAGES:

• Antenna Mounts & Brackets
• Antennas: How to choose
• Directional Antennas
• Omni-Directional Antennas
• Wireless Frequencies: 2.4GHz, 5GHz, 900MHz, WiMax
• RP-SMA Cables, Antennas and Connectors

All of our antennas pass QC test before we ship them.

ranges with which they can be compatible.

Range 2620-2690MHz:

An antenna originally designed for 2.4–2.5 GHz was tested using a high-end vna tester across
the 2620–2690 MHz LTE Band 7 Downlink range. The results show that the antenna performs
increasingly well at higher frequencies, with excellent matching near 2.690 GHz.