Small linear antennas

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dc.contributor.authorAli, Mohammoden_US
dc.date.accessioned2024-08-12T19:30:20Z
dc.date.available2024-08-12T19:30:20Z
dc.date.copyright1994en_US
dc.date.issued1994
dc.degree.departmentDepartment of Electrical and Computer Engineering
dc.degree.levelMaster of Applied Science M.A.Sc.en
dc.description.abstractThe input impedance and the bandwidth, two important characteristics of bent linear antennas, e.g. the meander, the sinusoidal and the dual meander have been investigated while developing small wideband antennas for application in personal communication network (PCN) [1]-[3] handsets operating around 880 MHz and 1900 MHz. Bandwidth characteristics of several sleeve antenna configurations have also been investigated to develop an antenna which would operate in both the PC bands. Since a variety of antenna configurations were considered, and since no single numerical model was available for all the configurations, experimental methods were chosen as the appropriate means of investigation. In the course of experimental analysis a number of sinusoidal and meander anĀ­tennas were measured and their bandwidths and shortening ratios were correlated with the design variables. The results found for the sinusoidal antenna can be used as a guideline by a designer who is interested in a specific shortening ratio but is uncertain about its bandwidth restriction. It has been found that for the same shortening ratio the sinusoidal antenna has better VSWR frequency characteristics than the meander. Specifically for PCN handset applications several bent antennas have been developed. Finally, a new explanation of the phenomenon of shortening of bent antennas has been proposed.en
dc.format.extent94 pages
dc.identifier.urihttps://hdl.handle.net/1828/16935
dc.rightsAvailable to the World Wide Weben_US
dc.titleSmall linear antennasen_US
dc.typeThesisen_US

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