Effects of Tapered Coaxial Feedlines on the Performance of a 3D Monopole UWB Antenna

TitleEffects of Tapered Coaxial Feedlines on the Performance of a 3D Monopole UWB Antenna
Publication TypeConference Paper
Year of Publication2008
AuthorsRuvio, G, Ammann, MJ
Conference NameRoyal Irish Academy Research Colloquium on Emerging Trends In Wireless Communications
Pagination73-76
Conference Start Date24/04/2008
PublisherCommittee for Communications and Radio Science, Royal Irish Academy
Abstract

Triangular Distribution tapering techniques are applied to the feedline of a three-dimensional monopole antenna. The impedance transformation provided by the taper is demonstrated to control the power carried by propagating modes across the operating bandwidth of the antenna. Thus, tapering solutions can be used to equalize the resonances within the bandwidth of interest and optimize the time-domain response of the antenna for pulse-based UWB communications, where phase distortion must be significantly reduced. The effects of tapered feedlines are numerically analyzed both in terms of impedance and radiation characteristics.

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