Three Element Yagi Antenna

Three Element Yagi Antenna 380 to 400MHz for UHF Communication

This product is a well designed Symmetrical Dipole Antenna in the form of a three element Yagi antenna. The antenna operates from 380MHz to 400MHz in the UHF band and is built from aluminum for light weight and good durability. As a Yagi Antenna, it features a simple three element design with one driven element, one reflector, and one director. This simple structure makes the antenna easy to build and keeps the cost very low. The materials are readily available, and the antenna is lightweight yet sturdy. The small wind Load makes it suitable for outdoor mounting in various weather conditions. The antenna offers linear polarization and operates at resonance. It features an N K type connector for easy connection to standard RF equipment.

This Yagi antenna delivers solid electrical performance across its operating range from 380MHz to 400MHz. The Voltage Standing Wave Ratio (VSWR) is rated at 1.5, which shows excellent impedance matching. The typical gain is 5dB, providing good signal strength for most communication tasks. The antenna has strong directivity, which means it focuses energy in one direction while rejecting signals from other directions. This gives it good anti interference capability. The front to back ratio is high, helping to reduce unwanted noise from behind the antenna. The simple resonant design provides reliable performance within its operating band. The aluminum construction ensures long term reliability even with outdoor exposure. The lightweight design makes installation easy, and multiple units can be combined into arrays for higher gain when needed.

One clear strength of this Yagi Antenna is its excellent balance between performance, simplicity, and low cost. It is widely used for shortwave, VHF, UHF, and general omnidirectional communication applications that require directional coverage. The antenna is well suited for base station use, point to point communication links, and rural area coverage where distance needs to be covered with limited power. The high directivity helps extend communication range compared to omnidirectional antennas. The narrow bandwidth is typical for resonant Yagi designs, but within the 380-400MHz range the performance is stable and reliable. The antenna is easy to install on masts, towers, or building rooftops. The N K connector provides a robust and weather resistant connection point.

In practical use, this Three Element Yagi handles professional communication tasks very well. For UHF base stations, it serves as a reliable directional antenna for point to point links. The 5dB gain provides useful signal improvement over simple dipole antennas. For rural or mountainous areas, the directional pattern helps overcome terrain obstacles and extend communication range. The aluminum construction keeps the antenna light enough for easy installation by one person. The small wind load means it can be mounted on lighter masts without heavy reinforcement. The low VSWR of 1.5 ensures good impedance matching and minimal signal reflection. It stands as a solid example of how a well designed Yagi Antenna can meet the practical needs of UHF communication systems while offering excellent value for money.