Communication terminal with interwoven and free-standing antenna radiators

Wireless circuitry comprising:

• a printed circuit board having a ground trace;
• a first radiating patch mounted to the printed circuit board, wherein
• the first radiating patch has a first lateral portion parallel to the ground trace,
• the first radiating patch has a central opening, an inner edge at the central opening, and an outer edge opposite the inner edge,
• the first radiating patch has an inner sidewall that extends from the inner edge and that is coupled to the ground trace,
• the first radiating patch has an outer sidewall that extends from the outer edge towards the ground trace,
• the outer sidewall is separated from the ground trace by a gap, and
• the first radiating patch is configured to convey radio-frequency signals in a first frequency band;
• and
• a conductive fence surface mounted to the ground trace and laterally surrounding the first radiating patch.

Apparatus comprising:

• a printed circuit board;
• first, second, and third antenna radiators surface mounted to the printed circuit board and configured to form a first signal beam in a first frequency band;
• and
• fourth, fifth, and sixth antenna radiators surface mounted to the printed circuit board and configured to form a second signal beam in a second frequency band higher than the first frequency band, wherein
• the first antenna radiator is concentric with the fourth antenna radiator,
• the first, second, and third antenna radiators are disposed at respective vertices of a first equilateral triangle having sides of a first length,
• the fourth, fifth, and sixth antenna radiators are disposed at respective vertices of a second equilateral triangle having sides of a second length less than the first length, and
• the first equilateral triangle at least partially overlaps the second equilateral triangle.