Small Chip Antenna for 2.4/5.8-GHz Dual ISM-Band Applications

Abstract

In this letter, we proposed a novel chip-type ceramic dielectric antenna using the advanced meander line technique for 2.4/5.8-GHz dual ISM-band applications. The proposed antenna is composed of small ceramic dielectric (8 mm x 4 mm x 1.5 mm, alumina) and substrate (thickness of 1.52 mm, TMM-4). In order to minimize the antenna's available area on the substrate and to reduce the coupling effect with the ground plane, the antenna is located at the corner of substrate. The measured bandwidth and maximum radiation gain are 2.35-2.57 GHz (VSWR < 2,2.07 dBi@2.44 GHz) and 5.29-6.01 GHz (1.17 dBi@5.75 GHz), respectively. From these results, it is demonstrated that our proposed antenna can be applicable to the dual-ISM band applications