A new patch antenna for UMTS band: narrow compact CPW-fed monopole

A novel narrow compact CPW-fed rectangular monopole patch antenna is proposed for UMTS band. The purpose is to design a new narrow compact antenna structure by using of a new CPW feeding technique. The most significant characteristics of proposed antenna are: narrow compact size of 67.3×7.8×0.762 mm3 and very simple structure. The proposed low profile antenna is printed on a single layer dielectric substrate and fed by 50Ω CPW transmission line. The proposed antenna effectively covers UMTS band (1.885-2.200GHz). The antenna gain is nearly about 1.9 dB at 2 GHz and the radiation pattern is almost as the radiation pattern of a monopole antenna and gain remains nearly constant within UMTS band. This antenna is suitable for application in wireless communication systems.