Tunable slot antenna

摘要

An open slot antenna is formed in a planar conductor (310) on a dielectric substrate (315). A tuning circuit (320) is disposed toward an open end of the slot antenna (330) and is used to select a resonant frequency of the antenna by electrically connecting one of multiple tuning elements across opposing sides of the slot. The tunable antenna so constructed may be incorporated into a handheld mobile communication device that can be operated in different geographic regions, each having different regional communication standards under which mobile communications are conducted.