Análisis y Diseño de Monopolos Acoplados para Dispositivos Móviles Multibanda

Abstract

A novel low profile planar antenna is proposed. The antenna presented is a coupled monopole antenna, comprising at least a driven element coupled with one or more parasitic elements. The design proposed is suitable to be used into a handheld device. The dimensions of the antenna are 33x15x1 mm3 . In order to facilitate the integration of other components, such cameras or speakers, a ground plane area at the right side of the antenna is provided. The study carried out reveals the relevance of the arms location over the performance of the antenna. The theoretic base is reinforced by a network model and a parametrical study. The coupling between elements controls the behaviour of the antenna. In this sense, a weak coupling between the driven element and at least one parasitic element enhances the bandwidth, whereas a multiband behaviour is achieved by a strong coupling. Finally, the PCB (Printed Circuit Board) influence has also been analyzed.