Results 71 to 80 of about 93,158 (208)
Enhancing Gain for UWB Antennas Using FSS: A Systematic Review
Mathematics, 2021 This review paper combs through reports that have enhanced antenna gain for ultra-wideband (UWB) frequencies using frequency-selective surface (FSS) techniques.
Ahmed Jamal Abdullah Al-Gburi +4 more
semanticscholar +1 more source
A 0.7 to 30 GHz Coplanar Vivaldi Antenna
Microwave and Optical Technology Letters, Volume 68, Issue 8, August 2026.ABSTRACT In the literature there are multiple Vivaldi antenna designs that have a wide impedance bandwidth; however, the usable bandwidth is often limited by pattern degradation at the higher frequencies of the band. This paper presents the design and implementation of a coplanar Vivaldi antenna with a 42.9:1 usable bandwidth ratio (0.7–30 GHz).
Jessica Mundell +3 more
wiley +1 more source
Experimental Comparison of IR-UWB Radar and FMCW Radar for Vital Signs
Italian National Conference on Sensors, 2020 In this paper, we compare the performances of impulse radio ultra-wideband (IR-UWB) and frequency modulation continuous wave (FMCW) radars in measuring noncontact vital signs such as respiration rate and heart rate. These two type radars have been widely
Dingyang Wang, Sun-Yong Yoo, S. Cho
semanticscholar +1 more source
A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection
Advanced Engineering Materials, Volume 28, Issue 14, 22 July 2026.A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan +9 more
wiley +1 more source
AEU - International Journal of Electronics and Communications, 2020 In this paper, a low-profile wearable antenna with metamaterial (MM) for wireless body area network (WBAN) applications is presented. The designed antenna with MM operates in the ultra-wideband (UWB) between 4.55 and 13 GHz and it has a thickness of 4.68
H. Yalduz +3 more
semanticscholar +1 more source
Joint distribution of polarization-multiplexed UWB and WiMAX radio in PON [PDF]
, 2009 In this paper, the feasibility of the joint distribution of ultra-wideband (UWB) and WIMAX wireless using polarization multiplexing as a coexistence technique is proposed and experimentally demonstrated within the framework of passive optical networks ...
Roberto Llorente +7 more
core +1 more source
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 +4 more
wiley +1 more source
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 +7 more
wiley +1 more source
Italian National Conference on Sensors, 2020 Non-invasive remote health monitoring plays a vital role in epidemiological situations such as SARS outbreak (2003), MERS (2015) and the recently ongoing outbreak of COVID-19 because it is extremely risky to get close to the patient due to the spread of ...
Faheem Khan +3 more
semanticscholar +1 more source
YOLOv8-SAB: Terahertz Image Detection Network Based on Shuffle Attention and YOLOv8
IEEE AccessThe limited accuracy of detecting small objects with current AI algorithm is becoming prominent under background of security check using low-resolved terahertz images.
Yu Jiang +6 more
doaj +1 more source