Results 51 to 60 of about 17,770 (216)
Characterisation of an aperture-stacked patch antenna for ultra-wideband wearable radio systems [PDF]
, 2004 This paper presents, for the first time, the time-domain characteristics of an aperture-stacked patch antenna (ASPA) for ultra-wideband (UWB) wearable devices. The methodology of antennas characterization for UWB radio systems is also outlined.
Klemm, M, Troster, G
core +2 more sources
Advanced Materials Technologies, EarlyView.This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane +4 more
wiley +1 more source
Non-Contact Vital Signs Monitoring of Dog and Cat Using a UWB Radar
Animals, 2020 As pets are considered members of the family, their health has received widespread attention. Since pets cannot talk and complain when they feel uncomfortable, monitoring vital signs becomes very helpful in disease detection, as well as observing their ...
Pengfei Wang +8 more
doaj +1 more source
Single-element based ultra-wideband antenna array concepts for wireless high-precision 2-D local positioning [PDF]
Advances in Radio Science, 2013 We generally categorize the approaches for ultra-wideband antenna array design, and consequently propose simplified concepts for antenna arrays for a high-precision, ultra-wideband FMCW radar 2-D local positioning system to obtain robustness against ...
M. Gardill +3 more
doaj +1 more source
Wall Compensation for Ultra Wideband Applications [PDF]
, 2012 Due to their low frequency contents, ultra wideband (UWB) signals have the ability to penetrate walls and obstacles. As the signal propagates through these obstacles, it gets attenuated, slows down, and gets dispersed.
Iya, N. M. +2 more
core +1 more source
Velocity Dealiased Spectral Estimators of Range Migrating Targets using a Single Low-PRF Wideband Waveform [PDF]
, 2013 Wideband radars are promising systems that may provide numerous advantages, like simultaneous detection of slow and fast moving targets, high range-velocity resolution classification, and electronic countermeasures.
Besson, Olivier +3 more
core +3 more sources
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source
A Suboptimal Receiver with Turbo Block Coding for Ultra-Wideband Communications [PDF]
, 2005 In this paper, the performance of adaptive equalization and turbo product coding is investigated for pulse-based UWB communications in short-range indoor environments.
Aquino, Sim +2 more
core +1 more source
Mathematical modeling of ultra wideband in vivo radio channel [PDF]
, 2018 This paper proposes a novel mathematical model for an in vivo radio channel at ultra-wideband frequencies (3.1–10.6 GHz), which can be used as a reference model for in vivo channel response without performing intensive experiments or simulations.
Abbasi, Qammer H. +4 more
core +1 more source
Advanced Science, EarlyView.This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Lihao Zhu +11 more
wiley +1 more source