Results 31 to 40 of about 519,749 (200)

Ultra-wideband transmitter design based on a new transmitted reference pulse cluster

ICT Express, 2017
This study presents an energy efficient ultra-wideband (UWB) transmitter based on the novel transmitted reference pulse cluster (TRPC) modulation scheme.
Yiming Huo, Xiaodai Dong, Ping Lu
doaj   +1 more source

All-Directional DOA Estimation for Ultra-Wideband Regular Tetrahedral Array Using Wrapped PDoA

Sensors, 2022
In this paper, we proposed a Regular Tetrahedral Array (RTA) to cope with various types of sensors expected in Ultra-Wideband (UWB) localization requiring all-directional detection capability and high accuracy, such as indoor Internet-of-Things (IoT ...
Jinglin Luo, Jingjing Zhang, Haidong Yang, Yisheng Guan   +3 more
doaj   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source

Low Power Ultra‐Wideband Low‐Noise Amplifier for UWB Receiver

Engineering Reports, Volume 8, Issue 9, September 2026.
This paper presents a 4–13 GHz UWB LNA designed in a 65 nm CMOS process, adopting gate inductor‐assisted impedance matching and current reuse feed‐forward noise cancellation. The LNA achieves 16.9 dB gain, 4.3 dB minimum NF, and only 9.4 mW power consumption from a 1 V supply.
Haimei Liu, Xiangqian Liu, Bilu Gao
wiley   +1 more source

A Fully Differential Digital CMOS Pulse UWB Generator [PDF]

, 2009
A new fully-digital CMOS pulse generator for impulse-radio Ultra-Wide-Band (UWB) systems is presented. First, the shape of the pulse which best fits the FCC regulation in the 3.1-5 GHz sub-band of the entire 3.1-10.6 GHz UWB bandwidth is derived and ...
Graziano, Mariagrazia, Casu, Mario Roberto, Zamboni, Maurizio   +2 more
core   +1 more source

Electromagnetic bandgap structure and split ring slot‐based monopole antenna for ultra‐wideband applications with dual band notch characteristics

Engineering Reports, 2020
Reduced lightweight microstrip patch antennas have attracted considerable attention in ultra‐wideband (UWB) applications. In this article, a novel modified circular ultra‐wideband monopole antenna with dual‐band notch characteristics is proposed.
Sumeet Singh Bhatia, Jagtar Singh Sivia, Narinder Sharma, Vipul Sharma   +3 more
doaj   +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, Johann Wilhelm Odendaal, Johan Joubert, Bennie Jacobs   +3 more
wiley   +1 more source

Design of compact balanced ultra‐wideband bandpass filter with half mode dumbbell DGS

Electronics Letters, 2016
A new compact balanced ultra‐wideband (UWB) bandpass filter using half mode dumbbell defected ground structure (DGS) is presented. To realise the UWB response, the ‘T’ shape multiple‐mode resonator with short‐ended stub is employed.
Jiayuan Lu, Jianpeng Wang, Hui Gu
doaj   +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, Shuvra Saha, Sumit Hassan Eshan, Rinku Basak, Md. Nahian Al Subri Ivan, Ahmed Murtuza Saleque, Raja Tariqul Hasan Tusher, Sadia Zabin, Md. Abdur Rahman, Yuen Hong Tsang   +9 more
wiley   +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, Martí Sendra, Javier, Marti, Javier, Morant, Maria, Llorente, Roberto, Perez, Joaquin, Maria Morant, Perez Soler, Joaquin   +7 more
core   +1 more source