ANTENNA AND WIRELESS DEVICE INCORPORATING THE SAME

摘要

PURPOSE: An antenna is provided to be capable of reconciling a low antenna resonance frequency and broadband frequency characteristics with attaining stable impedance characteristics and enhanced designing flexibility. CONSTITUTION: The antenna includes a conductive base plate(11), a conductive plate(12) having a planar configuration, which defines an antenna sub-element. The antenna further comprises a conductive wall(16) and an electromagnetic field coupling adjustment plate(17), which together define an electromagnetic field coupling adjustment element and two metal leads(13,14). A voltage is applied to the conductive plate(12) from a supply point(15), via the metal lead(13). The conductive plate(12) is coupled to the conductive base plate(11) via the metal lead(14). The conductive wall(16) is electrically coupled to the conductive plate(12) at one end thereof. The opposite end of the conductive wall(16) is electrically coupled to the electromagnetic field coupling adjustment plate(17).