GROUND PLANE ANTENNA 403-520 Mhz

Frequency Range 403-520 MHz
Bandwidth 20 MHz
Gain 6 dBi
Half-Power Beamwidth (Horizontal) 360 degree
VSWR < 1.5
Input Impedance 50 Ohm
Polarization Vertical
Lightning Protection Direct Ground
Maximum Power 100 Watt
Radiation Pattern Omnidirectional
Connector Type UHF/N or CS

 

Mechanical Data
Mounting Mast Diameter 32 – 60 mm
Maximum Wind Velocity 200 km/hr

A Ground Plane Antenna is a type of omnidirectional vertical RF antenna engineered for efficient transmission and reception in the UHF frequency range of 403 MHz to 520 MHz. This model is designed to deliver ~6 dBi gain, providing enhanced signal strength and extended range compared to lower-gain antennas. Ground plane antennas are widely used in base stations, mobile communication systems, wireless telemetry, public safety networks, SCADA/utility links, and industrial radio systems.

Operating Principle

A ground plane antenna consists of a vertical radiating element (monopole) mounted above a set of radial ground elements or a conductive metal surface that acts like an artificial “ground plane.” The ground plane serves as a reflector and return path for RF current, improving radiation efficiency and helping match the antenna to a 50 Ω transmission line (coaxial cable). This configuration produces a stable, low-loss radiation pattern that is ideal for terrestrial communications.

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