Design of a shorted planar meander-line metal antenna

Abstract

In this paper a shorted planar meander-line metal antenna (SPMMA) is designed at 2.45 GHz by modifying the radiating element of a shorted planar rectangular metal antenna (SPRMA). The shorting strip reduces 40% size of the meander-line antenna and the size of the SPMMA is 16% shorter compared to that of SPRMA. The reflection coefficient, gain and efficiency of the SPRMA and SPMMA are compared. The proposed compact meander-line metal antenna yields reflection coefficient of -39 dB, absolute gain of 2.7 dBi and efficiency of 90% at 2.45 GHz which makes this antenna suitable for ISM band applications. The normalized radiation pattern in E plane of the SPMMA is shown. The parametric studies are carried out to realize the effects of design parameters of the proposed meander line antenna on its reflection coefficient characteristics.