Increasing the bandwidth of a two-strip meander-line antenna mounted on a conducting box

A meander-line antenna consisting of two strips (two-strip MLA) is applied to a conducting box as a handset model in order to increase the bandwidth of a built-in antenna. The analysis of an MLA mounted on a conducting box leads to its resonant frequency f/sub r/, and radiation resistance R/sub r/ at f/sub r./ Using the two-strip MLA with balance mode impedance, broadbanding of the antenna in the impedance characteristics is considered.