Results 21 to 30 of about 1,217 (218)
Broadband All-Metal Vivaldi Array Antenna with Pyramidal-Shaped Wings for LEO Satellite Applications [PDF]
Journal of Electromagnetic Engineering and Science, 2023 In this paper, we propose an all-metal Vivaldi antenna with pyramidal-shaped conductive wings for use in satellite signal intelligence applications. The inner metal Vivaldi antenna consists of radiating flares and a transition part between the feeder and
Doyoung Jang +3 more
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Electronics Letters, 2010 A multimode Vivaldi antenna is presented, which is designed to operate either in a wideband mode, a wideband mode with a band rejection or a narrower passband mode. The antenna in a wideband mode is designed to have a bandwidth of 2-8 GHz. In the notch band mode, the antenna has tunable narrow band rejection between 5.2 and 5.7 GHz. The Vivaldi antenna
Hamid, Mohamad Rijal +3 more
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Jurnal Elkomika, 2019 ABSTRAK Antena Vivaldi merupakan salah satu jenis antena yang diimplementasikan pada radar penembus permukaan (Ground Penetrating Radar, GPR). GPR adalah salah satu metode non-destructive testing yang biasa digunakan untuk mengetahui kondisi beton/jalan
BASO MARUDDANI +2 more
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An Ultra-Wideband Vivaldi Antenna System for Long-Distance Electromagnetic Detection
Applied Sciences, 2022 Enlarging or reducing the antenna beam width of antennas can improve the positioning capability of detection systems. A miniaturized and easily fabricated ultra-wideband (UWB) antenna system for long-distance electromagnetic detection is proposed in this
Jinjing Ren +5 more
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A Modified Compact Flexible Vivaldi Antenna Array Design for Microwave Breast Cancer Detection
Applied Sciences, 2022 In this paper, a compact, flexible Vivaldi antenna is designed, and an array of nine identical antennas of this type is used as a microwave breast imaging model to detect cancerous tumors in the multilayers phantom model presented in this paper. The nine-
Ayman M. Qashlan +2 more
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Parametric Analysis and Bandwidth Optimisation of Hybrid Linear-exponential Tapered Slot Vivaldi Antennas [PDF]
, 2018 This work presents an analysis of the effects of a hybrid linear-exponential tapered slot on the key properties of both the antipodal and co-planar Vivaldi antennas at low frequencies using parametric analysis and Nonlinear Sequential Programming ...
Ukaegbu, Ikechukwu K. +1 more
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A Compact Vivaldi Shaped Partially Dielectric Loaded TEM Horn Antenna for UWB Communication
International Journal of Antennas and Propagation, 2014 Ultrawideband (UWB) antennas are of huge demand and Vivaldi antennas as well as the TEM horn antennas are good candidates for UWB applications as they both have relatively simple geometry and high gain over a wide bandwidth.
Mustafa İlarslan +4 more
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A Wideband Feed Network for Vivaldi Antenna Arrays
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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Metamaterial Loaded Nine High Gain Vivaldi Antennas Array for Microwave Breast Imaging Application
IEEE Access, 2020 In this article, a metamaterial loaded high gain nine antennas based microwave breast imaging system has presented to detect an unwanted tumour in the breast phantom.
Md Tarikul Islam +4 more
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Antipodal Vivaldi Antenna Arrays Fed by Substrate Integrated Waveguide Right-Angled Power Dividers
Applied Sciences, 2018 This paper describes a novel feed system for compact antipodal Vivaldi antenna arrays on a single layer of substrate integrated waveguide (SIW) by using SIW H-plane right-angled power dividers. The proposed antenna systems are composed of a Vivaldi array
Sara Salem Hesari, Jens Bornemann
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