Localization of Breast Tumor Using Four Elements UWB Wearable Antenna

UWB Antenna Array with Comb Taper Slot Antenna Elements

A uniformly spaced comb taper slot antenna array is proposed for directional ultra-wideband (UWB) applications. The UWB array consists of four identical comb taper slot antennas, a mutistage with four-way microstrip UWB power divider, and four identical coaxial cable lines. A maximum gain of 15.5dBi within the band is obtained when the element separation is properly selected. The uniform spacin...

Radiation pattern of an UWB wearable antenna: a preliminary study

Infrastructure-Aided Localization with UWB Antenna Arrays

This paper presents an approach for a precise 2D-localization of a mobile station in indoor scenarios by one single base station only. In the approach both, the Direction of Arrival (DoA) and the Time of Arrival (ToA), are estimated using UWB beamformers at both sides of the link. The article describes the algorithm, as well as the required hardware. A duallinear polarized, directive UWB antenn...

Weighted Centroid Method for Breast Tumor Localization Using an Uwb Radar

This paper studies the potential of ultra-wideband (UWB) microwave imaging for detection and localization of breast cancer in its early stages. A method is proposed for locating tumors which is based on the time-of-flight of the signal backscattered at the tumor. Timeof-flight is detected using a wavelet transform algorithm. The main contribution of this paper is that it proposes to determine t...

A Four-Element UWB Group Antenna Group for Beamforming

This contribution presents the work in progress towards an active UWB antenna array with beamforming capabilities. Small pulse generators were designed, manufactured and placed directly underneath small uwb monopoles. We show preliminary results of the first measurement campaign with a single antenna and a group antenna in the time domain.