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Overview of Vivaldi Antenna Selection for Through-Wall Radar Applications [PDF]
SensorsThis 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
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Vivaldi antenna for railway cutting monitoring [PDF]
2016 CIE International Conference on Radar (RADAR), 2016 A planar Vivaldi antenna was reconstructed and assessed as a candidate for a short range, high range resolution railway cutting monitoring radar. The initial flare section of the Vivaldi antenna was found to control the return loss of this type of antenna at lower frequencies, and a compact antenna for 120% fractional bandwidth was demonstrated ...
Zhou, Xiaohe +2 more
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Compact Dual-Polarized Vivaldi Antenna with High Gain and High Polarization Purity for GPR Applications [PDF]
Sensors, 2021 A compact ultra-wideband dual-polarized Vivaldi antenna is proposed for full polarimetric ground-penetrating radar (GPR) applications. A shared-aperture configuration comprising four Vivaldi elements for orthogonal polarizations is designed to reduce the
Hai-Han Sun +5 more
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A Wideband Feed Network for Vivaldi Antenna Arrays [PDF]
International Journal of Antennas and Propagation, 2022 A wideband feed network for a Vivaldi antenna array is presented. A limitation of current wideband antenna arrays is the bandwidth of either the feed network or the antenna element.
Natasha Antoinette Hall +2 more
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Semicircular Patch-Embedded Vivaldi Antenna for Miniaturized UWB Radar Sensors [PDF]
Sensors, 2020 A microstrip-to-slot line-fed miniaturized Vivaldi antenna using semicircular patch embedment is proposed in this study. The conventional Vivaldi antenna has ultrawide bandwidth, but suffers from low gain in the low-frequency band.
Jungwoo Seo, Jae Hee Kim, Jungsuek Oh
doaj +2 more sources
A Compact Dual-Polarized Vivaldi Antenna with High Gain for Tree Radar Applications [PDF]
SensorsA dual-polarized compact Vivaldi antenna with high gain performance is proposed for tree radar applications. The proposed design introduces an array configuration consisting of two pairs of two Vivaldi elements to optimize the operating bandwidth and ...
Kaixuan Cheng +5 more
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Vivaldi Antenna Arrays Feed by Frequency-Independent Phase Shifter for High Directivity and Gain Used in Microwave Sensing and Communication Applications [PDF]
Sensors, 2021 This paper describes a novel feed system for compact, wideband, high gain six-slot Vivaldi antenna arrays on a single substrate layer using a unique combination of power splitters based on binary T-junction power splitter topology, frequency-independent ...
Jiwan Ghimire +3 more
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Pneumatically-Actuated Liquid Metal-Based Frequency Reconfigurable Antenna. [PDF]
Adv Sci (Weinh)A look at a flexible, frequency‐tuning antenna A Soft Solution: Introducing a new antenna design made with liquid metal composites. A Full Package: Combining flexible antennas with pneumatic actuators. End‐to‐End Control: Automatic reconfiguration according to signal strength.
Song Y +6 more
europepmc +2 more sources
Wireless Personal Communications, 2023 In this work, two types of Vivaldi MIMO antenna are designed and fabricated. The first one is a two ports band-reject Vivaldi MIMO antenna. The second one is a two ports band-reject Vivaldi MIMO antenna with a dielectric lens. Measurements show that the experimental working band of both is 3 to 12 GHz with isolation between ports higher than 25 dB ...
Bazil Taha Ahmed +1 more
openaire +1 more source
Study on FR4 substrate backed flaring antenna structure for wideband applications [PDF]
E3S Web of Conferences, 2023 A class of planar antenna which offers better performance over broad band of frequencies that fits itself in wide range of applications are in need of research.
Keerthana S. +3 more
doaj +1 more source