Indian Journal of Science and Technology

Abstract

In this study a 2.4GHz and 5GHz band antenna for access point for wireless short-range communication was designed and the antenna characteristics according to design value were analyzed. The base structure was based on slot antenna that has relatively broadband characteristics compared to other antennas to design a dual resonance broadband antenna structure with tapered structure as medium. It was designed in a PCB circuit board printed form and characteristic changes according to antenna length, thickness of short circuit stubs, spacing between feed line and short circuit stub, spacing between antenna and ground plane, thickness of antenna, thickness of circuit board, and permittivity of circuit board was researched. The design value was tuned according to change according to the design value characteristic graph to design the optimum antenna. The designed antenna satisfied VSWR<2.7 at 2.4~2.4835GHz, and satisfied VSWR<2 at 5.725~5.825GHz. It is considered that through tuning of omni-direction radiation pattern it will be also possible to use outdoors.
Keywords: Antenna, Bandwidth, Dual Band, Micro-strip, Wireless-LAN