Moxon antenna

A Moxonantenne or Moxon rectangle is a simple directional antenna for shortwave and VHF frequencies which has particular application in the amateur band. It is named after the radio amateur Les Moxon (call sign G6XN ).

The antenna is similar to a Yagi -Uda antenna of a dipole and a reflector, except that the bars are bent and the directors are missing. My antenna gain is about 5 dBi, the forward / reverse attenuation at about 20 dB. In the drawing, the main axis of the antenna points to the left. The fed dipole is vertical and is bent to the right. The framework consists of two blue marked insulators and the subsequent reflector. The angled elements are similar in their form of a more long known antenna, the VK2ABQ Square.

Short- wave X-shaped spreader often made ​​of non -conductive materials such as fiberglass or bamboo be used onto which the reflector and the radiator of a wire of two wires insulated be attached. So lightweight antennas with very low wind load and low weight built. The Moxon antenna is also often used in portable wireless operation, such as Summits on the Air.

AC6LA provides a calculation program is available, which is based on those of LB Cebik, W4RNL developed algorithms. W4RNL has carried out detailed calculations and comparisons of different antenna shapes.