Abstract: A wireless communication device (100) comprises an antenna (204) comprising a major radiating element (210) that includes a letter C shaped part (212) connected to a letter U shaped part (214). The major radiating element (210) is spaced from a ground plane (302) and one or more components (206, 208) having conductive parts are located between the major radiating element (210) and the ground plane (302). Openings (314, 316) in the ground plane (302) are located under the components (206, 208) or terminals (310) of the components (206, 208). Passive radiators (126, 700) having multiple sections (602, 604, 702, 704, 706) of different transverse dimension are located on a flip (110) of the wireless communication device (100) proximate the antenna (204).

Abstract: The present utility model relates to a lifesaving lighting hammer including a head, which consists of a hammer tip and a tail, and a stem in which a battery groove for holding a battery is arranged. An illuminant is arranged at one end of the hammer stem, in which a generating set is provided. The generating set and the aforesaid battery are electrically connected with the illuminant respectively to thereby form two sets of power supply systems. The present utility model overcomes the publicly known defects and prolongs lighting time of the illuminant effectively.