I would like to share with you a compact 4 Element Yagi-Uda antenna design for 2 meter amateur radio band. This antenna has great front-to-back ratio and is optimized for wide range of frequency, a bargain for its compact design (about 76 centimeter long).

Although this antenna has almost the same gain as any simple 3 element yagi antenna (7-8dBi), this design has a significantly improved Front-to-Back ratio which is great for blanking noises and foxhunting purposes

Here how the antenna would look like

Front-Back Ratio Gain

VSWR from 143.000 MHz to 148.000 MHz

Antenna dimensions
Element, Length, Space from Reflector (all in cm unit)

• Reflector – 103.0, 0.00
• Driver – 95.0, 26.0
• Director 1 – 92.0, 39.0
• Director 2 – 83.0, 76.0

Calculated Center of Gravity – 35.0 cm

This antenna has been modelled using YagiMAX 3.0 software by K4VX

Please leave comments if you have sucessfully built this antenna. I would like to hear your experiences.

Tags: 2 meter, amateur radio, antenna, hamradio, Hobbies, hobby, vhf, yagi, yagi-uda