Siretta Delta 11

433MHz Rubber Over-moulded 1/4 Wave Antenna

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Key Features
  • Overmoulded, flexible whip
  • Helically wound
  • Tuned to 433MHz
  • RoHS compliant

The Delta 11 is a direct connect stubby antenna measuring 90.2mm in length. It is a ΒΌ wave, helically wound, omni-directional antenna dedicated to 433MHz. With a centre frequency of 433MHz, this antenna resonates on 433MHz that is far more focused than wide band antennas, such as quad band GSM, providing far superior performance. This does however mean that the Delta 11 is limited to 433MHz only applications. 433MHz resides within the Industrial, Scientific and Medical (ISM) band.

Common applications for ISM antennas are low power short range applications such as: wireless sensory monitoring, street light control, smart metering and security systems, just to name a few.

The Delta 11 is supplied with an SMA male connector however; this antenna can be built with a connector of your choice with volume only orders.


Delta 11 Key Specifications - Electrical

Impedance: 50 ohm
Gain: 2.15 - 3dBi
VSWR: 2.0 Max
Electrical wave: 1/4 monopole
Operating frequencies: 433 MHz
Polarization: Vertical
Radiation: Omni

Delta 11 Key Specifications - Mechanical

Dimensions: 90.2mm
Connector: SMA male
Mounting method: Direct connect