Results 1 to 10 of about 1,217 (218)
Circularly Polarized Vivaldi Antennas Integrated with Septum-like Polarizer [PDF]
SensorsIn this paper, two orthogonally placed Vivaldi antennas with a septum-like polarizer to generate circular polarized (CP) waves are presented. Septum polarizers have garnered attention due to their simple structure and high quality of CP waves.
Ilkyu Kim +3 more
doaj +3 more sources
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
doaj +3 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 +2 more sources
Microwave Fill Level Inspection System for Industrial Packaged Products [PDF]
SensorsFill level control is one of the strict checks required when inspecting industrially packaged products. The purpose is both to ensure the content conformity according to the declared label information and to preserve the reliability of brand trust ...
Calin I. Maraloiu +3 more
doaj +2 more sources
Analysis of Near-Field Characteristics on Improved Structures of Double-Slot Antipodal Vivaldi Antenna [PDF]
SensorsA characterization of near-field impulse responses based on electromagnetic (EM) near-field data from an EM solver to explore features of the propagation process on a well-known wideband traveling wave antenna—double-slot Vivaldi antenna—is presented in ...
Ha Hoang +2 more
doaj +2 more sources
A Compact Wideband Vivaldi Antenna for Non-Invasive Glucose Monitoring [PDF]
MicromachinesDue to the high gain, wide bandwidth, and directional radiation characteristics of Vivaldi antennas, this paper conducted relevant research on the feasibility of non-destructive blood glucose detection based on Vivaldi antennas.
Shasha Yang +6 more
doaj +2 more sources
IEEE Access, 2021 Airborne-based Ground Penetrating Radar (GPR) systems have proved to be an efficient solution for safe and accurate detection of buried threats such as Improvised Explosive Devices (IEDs) and anti-personnel and anti-tank landmines.
Maria Garcia Fernandez +5 more
doaj +1 more source
A Novel Approach on Microwave Hyperthermia
Diagnostics, 2021 Microwave hyperthermia (MH) requires the selective focusing of microwave energy on the targeted region while minimally affecting the healthy tissue. Emerging from the simple nature of the linear antenna arrays, this work demonstrates focusing maps as an ...
Gulsah Altintas +3 more
doaj +1 more source
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
openaire +1 more source
Low-Cost Lens Antenna Design for Microwave Moisture Detection
International Journal of Antennas and Propagation, 2022 In this study, a novel Vivaldi antenna with dimensions of 100 mm × 85 mm × 1.6 mm, designed for a moisture measurement system, is built to enhance the gain of conventional Vivaldi antennas in the low-frequency band to suit the needs of moisture detection.
Fangyan Ma +5 more
doaj +1 more source