Fill in the blank: A ______ has elements arranged in a linear fashion on a tightly curved radius.

Fill in the blank: A ______ has elements arranged in a linear fashion on a tightly curved radius.

• A. Phased array
• B. Tightly curved array
• C. Linear array
• D. Sector array

Answer: (B)

In antenna array terminology, the shape of the element layout is what names the type. When the elements lie along a curved line with a small radius, the arrangement is described as a tightly curved array. The description “linear fashion” here means the elements form a line, but that line follows a curve rather than a straight path, hence the tight radius of curvature. This is different from a linear array, which is strictly straight; a sector array typically implies a wedge-shaped portion of a circle, not just a single curved line; and a phased array refers to beamforming capability and can adopt many shapes, not by itself defining the curved geometry. So the best fit for a row of elements following a tight curve is a tightly curved array.

In antenna array terminology, the shape of the element layout is what names the type. When the elements lie along a curved line with a small radius, the arrangement is described as a tightly curved array. The description “linear fashion” here means the elements form a line, but that line follows a curve rather than a straight path, hence the tight radius of curvature. This is different from a linear array, which is strictly straight; a sector array typically implies a wedge-shaped portion of a circle, not just a single curved line; and a phased array refers to beamforming capability and can adopt many shapes, not by itself defining the curved geometry. So the best fit for a row of elements following a tight curve is a tightly curved array.