Results 51 to 60 of about 2,134 (167)

Overview of Vivaldi Antenna Selection for Through-Wall Radar Applications

open access: yesSensors
This paper analyzes broadband antennas, with a special focus on Vivaldi antennas, for their suitability for through-wall radar applications. It assesses various antenna designs, emphasizing high gain, wide impedance bandwidth, and effective wall ...
Mariana Amador   +3 more
doaj   +1 more source

Design of Two Novel Dual Band-Notched UWB Antennas

open access: yesInternational Journal of Antennas and Propagation, 2012
Two novel dual band-notched ultra-wideband (UWB) printed monopole antennas with simple structure and small size are presented. The size of both antennas is 25×25×0.8 mm3.
Bing Li, Jing-song Hong
doaj   +1 more source

Introduction to Ultra-Wideband Antennas

open access: yesPacific International Journal, 2018
This paper presents an introduction to ultra-wideband (UWB) antennas, including a summary of key UWB antenna concepts, as well as system and network considerations, and fundamental limits for UWB antennas.
openaire   +2 more sources

Ultra-Wideband Dielectric Lens Antennas for Beamsteering Systems

open access: yesInternational Journal of Antennas and Propagation, 2019
This paper presents a high-directivity ultra-wideband beamsteering antenna array. An innovative beamsteering system based on hemispherical dielectric lenses fed by a set of different printed antennas is proposed. Diversity of signals in different spatial
Renan Alves dos Santos   +4 more
doaj   +1 more source

Design of a compact ultra‐wideband MIMO antenna

open access: yesThe Journal of Engineering, 2019
A compact ultra‐wideband (UWB) multiple‐input multiple‐output (MIMO) antenna is presented. The MIMO antenna consists of four monopoles which are printed on FR4 substrate, whose impedance bandwidth is from 2 to 12 GHz, and the isolation of two adjacent antennas is less than−20 dB in mostly frequency band.
Wang Youcheng   +3 more
openaire   +2 more sources

Ultra Wideband Planar Microstrip Array Antennas for C-Band Aircraft Weather Radar Applications

open access: yesInternational Journal of Antennas and Propagation, 2017
A miniaturized ultra wideband (UWB) planar array antennas for C-band aircraft weather RADAR applications is presented. Firstly, the effect of the ground plane is studied.
Abdellatif Slimani   +3 more
doaj   +1 more source

Design of a Circularly Polarized Planar Monopole Antenna with a Simplified Radiator Structure for UWB Applications [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
The demand for wideband circularly polarized (CP) antennas in wireless communication applications has been increasing, given that it offers reliable signals with reduced interference.
Seungyong Park   +3 more
doaj   +1 more source

Antenna arrays focused by broadband signals

open access: yesФизика волновых процессов и радиотехнические системы, 2015
Broadband and ultra-wideband signals are increasingly used in modern antenna technology, and various radio systems. Traditional performance evaluation antennas operating with narrow band signals are not always adequately reflect the characteristics of ...
Yu.E. Sedelnikov, D.A. Vedenkin
doaj  

A Tightly Coupled Ultra-Wideband Antenna Array With Wide-Angle Scanning Capability Based on a Novel Interdigital Structure

open access: yesInternational Journal of Antennas and Propagation
To address the urgent demands of modern electronic countermeasure systems for antennas with ultra-wideband performance, high gain, and wide-angle scanning capability, this paper proposes a novel dual-polarized wideband antenna structure.
Qingchao Guo   +6 more
doaj   +1 more source

Planar UWB Antenna with Notched Bands

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2016
The ultra-wideband (UWB) monopole antennas are designed to provide the impedance band-width of the wideband response from 2.5 to 12 GHz. To achieve single-, dual-, or triple-band notched characteristics at desirable frequencies, the electric ring ...
A. S. Rusakov
doaj  

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