APPARATUS AND METHOD FOR ENHANCING LOW-FREQUENCY OPERATION OF MOBILE COMMUNICATION ANTENNAS

摘要

The operation of a mobile communication apparatus is enhanced particularly i n the lower frequency portion of its bandwidth by connecting an electrically- conductive reflector (30) to the electrically-conductive ground of the print ed wired board (PWB) (4) containing the communication circuitry such that the reflector (30) effectively enlarges the ground of the PWB to load the antenn a (10) in the lower portion of its radio frequency band. Another embodiment of the reflector may include stub reflectors integrally formed on the PWB, or connected thereto, preferably at the end of the PWB opposite to that connect ed to the antenna. The antenna may be an internal or an external antenna.