Results 41 to 50 of about 519,749 (200)

Performance Analysis of Ultra-Wideband Channel for Short-Range Monopulse Radar at Ka-Band

Journal of Electrical and Computer Engineering, 2012
High-range resolution is inherently provided with Ka-band ultra-wideband (UWB) vehicular radars. The authors have developed a prototype UWB monopulse radar equipped with a two-element receiving antenna array and reported its measurement results.
Naohiko Iwakiri, Natsuki Hashimoto, Takehiko Kobayashi   +2 more
doaj   +1 more source

Characterization of an aperture-stacked patch antenna for ultra-wideband wearable radio systems

Journal of Telecommunications and Information Technology, 2005
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.
Maciej Klemm, Gerhard Troester
doaj   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, Volume 11, Issue 13, 8 July 2026.
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, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Study on propagation properties of UWB signal waveform

Tongxin xuebao, 2005
Investigating the propagation properties of Ultra-wideband （UWB） were the essential topics in UWB channel theory.Based on Fourier transformation,Various UWB pulse waveform with indoor reflection,refraction and diffraction is studied.Moreover,a novel ...
LIU Yuan-jian, ZHANG Ye-rong
doaj   +2 more sources

Miniaturised ultra‐wideband circular polarised koch fractal crossed dipole array

IET Microwaves, Antennas & Propagation
Ultra‐wideband (UWB) systems utilise a broad frequency spectrum to achieve high data transmission rates and enhanced precision, creating a demand for specialised UWB antennas.
Won Min Choi, Taeyong Jeong, Dong Hwan Lee, Jun Hee Kim, Dong Geun Lee, Keum Cheol Hwang   +5 more
doaj   +1 more source

Random Sign Repetition Time-Hopping UWB with Multiuser Detection

EURASIP Journal on Wireless Communications and Networking, 2005
A modified time-hopping (TH) ultra-wideband (UWB), called the random sign repetition TH-UWB, is considered to improve the performance of the minimum mean square error (MMSE) multiuser detector.
Choi Jinho
doaj   +2 more sources

A Printed Wide‐Slot Antenna With Modified Tuning Stub and Parasitic Elements for Glucose Sensing Applications

Engineering Reports, Volume 8, Issue 7, July 2026.
A compact printed wide‐slot antenna with a diamond‐shaped tuning stub and parasitic elements achieves an ultrawide impedance bandwidth of 256% (2.4–16.2 GHz). Its capacitive nature enables frequency shifts with dielectric variations, making it highly suitable for accurate, non‐invasive glucose sensing applications.
A. K. Arya, Rao Shahid Aziz, Ali M. Almuhlafi, Hamsakutty Vettikalladi, Zhenzhen Jiang, Arjun Kumar, Vipin Balyan, Gunjan Gupta   +7 more
wiley   +1 more source

Full‐Stack Architectures for Intelligent Brain‐Computer Interfaces

Advanced Science, Volume 13, Issue 36, 29 June 2026.
System‐level overview of brain–computer interfaces (BCIs), illustrating the integration of neural signal acquisition, wireless transmission, and adaptive decoding. Advanced electrode, tissue interfaces, energy‐efficient communication, and robust algorithms collectively enable stable signal quality, real‐time processing, and closed‐loop operation ...
Hee Kyu Lee, Hyun Bin Kim, Sang Uk Park, Janghoon Joo, Jinhong Min, Geumbee Lee, Joohoon Kang, Hyoyoung Jeong, Jae‐Young Yoo, Sang Min Won   +9 more
wiley   +1 more source

A Joint Channel Modeling, Parameter Estimation and Geometry‐Based Indoor Localization for 5G Systems

Transactions on Emerging Telecommunications Technologies, Volume 37, Issue 6, June 2026.
We propose an end‐to‐end method to accurately localize mobile stations in indoor scenarios, such as those found in Industry 4.0. To this end, we jointly perform wireless channel modeling considering mmWave and MIMO technologies, parameter estimation in 3D, and simple and fine‐grained geometry‐based localization.
Paulo Francisco da Conceição, Rodrigo Pinto Lemos, Flávio Geraldo Coelho Rocha   +2 more
wiley   +1 more source

Ultra-Wideband Radio

EURASIP Journal on Advances in Signal Processing, 2005
The application of ultra-wideband (UWB) technology to low-cost short-range communications presents unique challenges to the communications engineer. The impact of the US FCC's regulations and the characteristics of the low-power UWB propagation channels
Pozar David M, Scholtz Robert A, Namgoong Won   +2 more
doaj   +1 more source