A small meander-line antenna consisting of two strips (two-strip MLA) is studied in order to increase the bandwidth. It is possible to increase the bandwidth by using the two strips because the radiation resistance can be stepped up and the reactances can be made to cancel each other in the balanced and unbalanced current modes. In the analysis, the input impedance is expressed by the radiation resistance, quality factor, and resonant frequency. A parameter u, which represents the variation ratio of the frequency from the resonant frequency, is introduced into the equation of the input impedance. The analysis shows that the characteristic impedance in balanced mode needs to be an arbitrary 20 Ω. The two-strip MLA is more effective in making the characteristic impedance low than two round wires. An antenna with a height of 0.11 wavelength is made and measured. A bandwidth of 7.2% is obtained when VSWR is less than 1.5.