What is a cubical quad antenna composed of?

The cubical quad antenna is constructed using four straight, parallel elements, commonly organized into a square or rectangular shape. This design allows the antenna to take advantage of its shape for improved efficiency and gain in specific directions, making it a popular choice for both amateur and professional radio operators. The parallel elements provide a unique radiation pattern as well as better performance when compared to other types of antennas, particularly since they can be used at various frequencies depending on their dimensions.

The benefit of having four elements arranged in this way is that it can help create high gain and low angle radiation, which is useful for long-distance communication. This design can also allow for easier directionality in receiving and transmitting signals, making it favorable in a variety of communication scenarios.