433MHz 2dBi Omnidirectional Antenna SMA connector 22.5×187
Product Introduction
The BGS-AN0433-20350G is a high-performance omnidirectional antenna designed for the 433MHz ISM band. Housed in a durable Φ20×350mm fiberglass radome, it delivers an excellent combination of 3dBi gain and ≈84% efficiency with an outstanding <1.5 VSWR. This antenna strikes the perfect balance between size, gain, and efficiency – making it an ideal choice for medium- to long-range wireless applications where reliable omnidirectional coverage and power efficiency are essential.
Main Applications
- Medium- to Long-Range IoT Gateways
Smart city networks, environmental monitoring stations, agricultural IoT hubs - Wireless Automatic Meter Reading (AMR/AMI)
Remote collection of water, electricity, gas, and heat meters over suburban distances - Industrial Control & SCADA Systems
Factory automation, equipment monitoring, remote telemetry, pipeline data collection - Security & Alarm Systems
Perimeter protection, wireless alarm networks, intrusion detection for commercial buildings - Smart Home & Building Automation
Central smart home gateways, whole-building automation systems - Agricultural IoT
Crop monitoring, irrigation control, livestock tracking across medium-sized farms - Fleet & Asset Tracking
Vehicle telematics, container tracking, logistics monitoring - Amateur Radio & Emergency Communication
Fixed station antennas, local repeater links, community emergency networks - Marine & Coastal
Marina communications, small vessel tracking, coastal monitoring stations
Product Specification
| Electrical Characteristics | |
| Frequency | 433MHz |
| Impedance | 50 Ohm |
| S.W.R. | <1.5 |
| Gain | 3dBi |
| Efficiency | ≈84% |
| Horizontal Beamwidth | 360° |
| Vertical Beamwidth | 61-75° |
| Polarization | Linear |
| Max Power | 50W |
| Material & Mechanical Characteristics | |
| Connector Type | N connector |
| Dimension | Φ20*350mm |
| Weight | 0.145Kg |
| Radome material | Fiberglass |
| Environmental | |
| Operation Temperature | - 40 ˚C ~ + 80 ˚C |
| Storage Temperature | - 40 ˚C ~ + 80 ˚C |
Antenna Passive Parameter
VSWR
Efficiency & Gain
| Frequency (MHz) |
428.0 |
429.0 |
430.0 |
431.0 |
432.0 |
433.0 |
434.0 |
435.0 |
| Gain (dBi) |
3.01 |
3.06 |
3.09 |
3.08 |
3.04 |
3.00 |
2.95 |
2.90 |
| Efficiency (%) |
83.76 |
84.77 |
85.52 |
85.76 |
85.65 |
85.32 |
84.88 |
84.42 |
Radiation Pattern
|
3D |
2D-Horizontal |
2D-Vertical |
|
|
428MHz |
|
|
|
|
433MHz |
|
|
|
|
435MHz |
|
|
|
Write your message here and send it to us





