433Mhz RF 3dBi SMA Antenna

433Mhz RF 3dBi SMA Male 90 Degree Antenna

5cm Wireless Communication Module Device Omni Radio Transceiver GSM GPS 433 Mhz

     The 433Mhz RF SMA Antenna is a 5cm short rubber (rod) antenna with 3dBi gain for transceiver modules in the 433MHz band. Its gold coloured SMA male connector has a 90 degree elbow, so the antenna stands upright while the module or device is horizontal. Inside the rubber sleeve there is a copper helical (spring) radiator; the connector is screwed onto 433MHz modules and devices with an SMA female socket.

     The antenna has 50ohm impedance, vertical polarization and omnidirectional radiation, and its VSWR is lower than 2.0; it withstands transmitter power up to 50W. It works between -40°C - 85°C. With a weight of about 6.5gr and a length of 5cm it takes little space on top of an enclosure or at the edge of a board, and it is used in devices where long rod antennas do not fit.

Key features:

     90 degree elbow connector: When plugged into an SMA socket on a side surface or on a horizontal board, the antenna points upward; it stands in the right position for vertical polarization.

     Short and robust body: The 5cm rubber sleeve protects the copper helical radiator inside; it is stressed less by impacts than long rod antennas.

     Screw on SMA male connection: The gold coloured SMA male connector screws onto an SMA female socket; it does not come off under vibration and no soldering is needed.

     3dBi gain, 50W power: It gives 3dBi gain in the 433MHz band; its 50ohm impedance matches the module output and it withstands transmitter power up to 50W.

Features:

• Product type: 433MHz short rubber (rod) antenna, 90 degree elbow
• Model: 433Mhz RF SMA Antenna
• Frequency: 433MHz band
• Gain: 3dBi
• Impedance: 50ohm
• VSWR: lower than 2.0
• Polarization: Linear, vertical
• Radiation: Omnidirectional
• Maximum input power: 50W
• Connector: SMA male (pin in the center), gold coloured
• Connector angle: 90 degree elbow
• Internal structure: Copper helical (spring) radiator, rubber sleeve
• Compatible socket: 433MHz modules and devices with SMA female socket (LoRa E32 and similar)
• Operating temperature: -40°C - 85°C
• Material: Rubber sleeve, metal connector
• Color: Black sleeve, gold coloured connector
• Length: 5cm
• Body diameter: about 10mm
• Weight: about 6.5gr

Usage information:

• Align the SMA male connector of the antenna with the SMA female socket of the module or device and tighten its nut by hand; do not overtighten with pliers.
• Position the elbow so that the antenna body stands upright. The link is better when the antennas of the two communicating devices point in the same direction (both upright).
• Do not place the antenna inside a metal enclosure; when mounting near a metal surface the antenna body must stay outside the enclosure.

Applications:

•  LoRa (E32 and similar modules with SMA socket) wireless modules
•  433MHz transceiver and serial communication modules
•  Telemetry and remote monitoring devices
•  Remote control receivers and transmitters
•  Alarm and security panels
•  Garage door and barrier remote control
•  Wireless meter reading
•  Irrigation and greenhouse monitoring systems
•  Wireless weather station
•  Home automation and smart home devices

Things to consider:

•  The connector is SMA male (it has a pin in the center) and only fits an SMA female socket. It does not plug directly into RP-SMA sockets or modules with an IPEX (U.FL) socket; for modules with an IPEX socket an IPEX - SMA adapter cable or an antenna with IPEX connector is needed.
•  This antenna is only for the 433MHz band; it is not used on GSM, GPS, WiFi or 868MHz devices.
•  It is a short (5cm) antenna; for applications needing very long range prefer a longer or higher gain external antenna.
•  Do not operate a transmitter module in transmit mode without the antenna connected; the output stage may be damaged.

Package contents:

•  1 Piece 433Mhz RF 3dBi SMA Antenna
•  Note: Wireless module and IPEX - SMA adapter cable are not included in the package.