Antenna Device with Angled Field Adjustment Plates for Wide Beam Width

The antenna structure is divided into multiple independent components: a feed network unit, a first reflecting plate, a second reflecting plate, and a ground plate. Each component performs a specific function in controlling the electromagnetic field distribution, allowing the complex beam width requirement to be achieved through coordinated action of segmented parts rather than a monolithic structure.

The patent introduces multiple reflecting plates positioned at different spatial dimensions and angles relative to the ground plate. The first reflecting plate is inclined at a first angle while the second reflecting plate is inclined at a second angle, creating three-dimensional field control. This dimensional approach enables the half power beam width to expand to 150 degrees or more by utilizing spatial arrangement rather than simply scaling up a two-dimensional structure.

The ground plate serves as a reference plane that establishes an equipotential surface for the electromagnetic field. The reflecting plates are positioned and angled relative to this ground plate to create symmetric field distributions. This equipotential approach simplifies the design by providing a stable reference that enables predictable field control and achieves wide beam width without requiring complex adaptive structures.

The first and second reflecting plates act as intermediary elements between the feed network unit and the far-field radiation pattern. These reflecting plates manipulate the electromagnetic fields generated by the feed network, redirecting and shaping them to achieve the desired 150-degree half power beam width. The intermediaries transform the simple omnidirectional pattern from the feed into the wide coverage pattern required for improved signal receiving ability.