Results 71 to 80 of about 3,037 (262)

Vivaldi Antenna for UWB Sensor Networks

, 2017
In this paper, the Vivaldi antenna designed for ultra-wideband (UWB) sensor networks by exponential curves is presented. Manufactured antennas are used for through-wall measurements.
Schneider, Jan, Gamcova, Maria, Gamec, Jan   +2 more
core   +1 more source

Peacock Feather Shaped Antenna With Super High Frequency Band for Wireless Applications

Engineering Reports, Volume 7, Issue 11, November 2025.
Proposed Peacock feather‐shaped patch antenna: dimensions, fabricated antenna measurement. ABSTRACT This work presents the design and simulation of a peacock eye‐shaped antenna, developed to address the global bandwidth shortage in wireless cellular networks, particularly in 3G, 4G, and 5G communication systems.
P. Sree Lakshmi, A. Deepak, Suresh Kumar Muthuvel, Ayodeji Olalekan Salau, Aitizaz Ali, Ting Tin Tin   +5 more
wiley   +1 more source

A Proton Irradiated CMOS On-Chip Vivaldi Antenna for 300 GHz Band Slat Array Implementation

IEEE Open Journal of Antennas and Propagation
As the CMOS transceiver reaches the sub-millimeter wave operating frequency, its circuit area cannot keep up with the shrinkage of the $0.5 \lambda_0 \times 0.5 \lambda_0$ area limit for the typical 2-dimensional (2D) tile-based phased array topology ...
Hans Herdian, Chun Wang, Takeshi Inoue, Atsushi Shirane, Kenichi Okada   +4 more
semanticscholar   +1 more source

A Super Wideband Directional Compact Vivaldi Antenna for Lower 5G and Satellite Applications

International Journal of Antennas and Propagation, 2021
In this paper, a super wide band (SWB) Vivaldi antenna has been proposed for lower 5G bands in Sub-6 GHz and satellite applications (S, C, X, Ku, and K band) using various performance improvement techniques.
Liton Chandra Paul, Md. Mohiminul Islam
doaj   +1 more source

High‐Performance Multiport Antenna With Frequency Selective Surface for 5G Ka‐Band Applications

Radio Science, Volume 60, Issue 11, November 2025.
Abstract This paper presents a novel multiport antenna tailored for 5G millimeter‐wave (mm‐Wave) applications. The proposed design features orthogonally arranged radiating elements to ensure compactness with an overall footprint of just 20 × 26 mm2.
Mohammad Alibakhshikenari, Iftikhar ud Din, Nouf Abd Elmunim, Bal S. Virdee, Sunil Kumar, Sadiq Ullah, Muhammad Akmal Chaudhary, Nisar Ahmad Abbasi, Chan Hwang See, Ernesto Limiti, Takfarinas Saber   +10 more
wiley   +1 more source

A 28-GHz Vivaldi Array Antenna With Power Divider Structure for Achieving Wide Band and Gain Enhancement

International Journal of Antennas and Propagation
This article presents a planar Vivaldi array antenna based on a power divider structure. A half-loop defected ground structure (DGS) is performed to decrease the mutual coupling between antennas in the bottom layer of the substrate.
Ming-An Chung, Dainius Udris, Chia-Wei Lin, Chih-Wei Yang   +3 more
doaj   +1 more source

Monitoring Source Areas of Post‐Fire Geomorphic Processes Using an In Situ Multi‐Sensor System

Geophysical Research Letters, Volume 52, Issue 19, 16 October 2025.
Abstract Geomorphic processes that occur after wildfires in mountainous areas require a deep understanding due to complex interactions of fire effects with the landscape surface. In situ monitoring systems can support this task, even if some limitations that affect traditional sensors can hamper their action. The current work presents an advanced multi‐
N. Dematteis, L. Pisano, R. M. Cavalli, M. Cavalli, S. Crema, M. De Biase, M. Donnini, S. L. Gariano, M. Piantini, M. Rossi, G. Esposito   +10 more
wiley   +1 more source

Bandwidth, Gain Improvement, and Notched-Band Frequency of SWB Wave Coplanar Vivaldi Antenna Using CSRR

IEEE Access
Antennas with high gain that can operate in Super Wide Band (SWB) frequencies can be employed for a variety of wireless applications that serve different telecommunications infrastructure and radar applications.
N. Nurhayati, F. Zulkifli, Eko Setijadi, B. E. Sukoco, M. Yasin, A. M. de Oliveira   +5 more
semanticscholar   +1 more source

A Drone‐Borne GPR System for Lake and River Ice Thickness Monitoring

Water Resources Research, Volume 61, Issue 10, October 2025.
Abstract Monitoring ice on water is critical to study global and regional environmental change. However, accurate ice thickness mapping over a water body like a lake is still challenging. In this study, we first develop a drone‐borne ground penetrating radar (GPR) system for ice thickness monitoring.
Xu Meng, Zhenjun Zhu, Hai Liu, Yunlong Lian, Haijing Lu, Yikang Wang, Ruige Shi, Billie F. Spencer   +7 more
wiley   +1 more source

Mounted Director Element on Dual‐Band Vivaldi Antenna for Wireless Energy Harvesting Application

International journal of RF and microwave computer-aided engineering
This paper presents radio frequency energy harvesting (RFEH) using a rectenna system for 3.1 and 5.75 GHz frequencies. The antenna used in this work is a Vivaldi antenna with a new structure.
S. Hosseini, Changiz. Ghobadi, J. Nourinia, M. Shokri   +3 more
semanticscholar   +1 more source