Articles with "vivaldi" as a keyword



Compact ultra‐wideband Vivaldi antenna for ground‐penetrating radar detection applications

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Published in 2019 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.31724

Abstract: This article presents a study an ultra‐wide bandwidth (UWB) antenna for ground‐penetrating radar (GPR) applications. The GPR is a favorable technology for detection and identification of buried object as landmine or mummy. Vivaldi antennas are… read more here.

Keywords: antenna; antenna ground; ground penetrating; vivaldi antenna ... See more keywords

Super Wide Band Parabolic Reflector Design With Vivaldi Antenna Array Feed for Switchable Beam Applications

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Published in 2025 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.70352

Abstract: In this study, a multi‐planar Vivaldi antenna‐fed parabolic reflector antenna is presented for wideband applications operating from the L‐band to beyond S‐band. The proposed antenna is designed for high‐gain beam‐steering applications in electronic warfare such… read more here.

Keywords: vivaldi; beam; band; parabolic reflector ... See more keywords

Vivaldi antennas: a historical review and current state of art

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Published in 2020 at "International Journal of Microwave and Wireless Technologies"

DOI: 10.1017/s1759078720001415

Abstract: Abstract The progressions in the field of wireless technology can be highly attributed to the development of antennas, which can access high data rates, provide significant gain and uniform radiation characteristics. One such antenna called… read more here.

Keywords: vivaldi; vivaldi antenna; review; antennas historical ... See more keywords

Low SAR ultra compact UWB vivaldi non-uniform slot antennas for breast cancer detection

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Published in 2024 at "Physica Scripta"

DOI: 10.1088/1402-4896/ad9089

Abstract: Breast cancer is one of the growing issues among women. Current ultrawideband (UWB) antennas utilized for Microwave Imaging (MI) present several limitations, such as resolution and penetration trade-offs, large dimensions of the antennas degrade patient… read more here.

Keywords: ultra compact; vivaldi; breast cancer; slot ... See more keywords

An Ultrawideband Circularly-Polarized Vivaldi Antenna With High Gain

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Published in 2022 at "IEEE Access"

DOI: 10.1109/access.2022.3208375

Abstract: This paper proposes a novel ultrawideband antenna with high gain and circular polarization. Its circular polarization can be easily changed to right-handed or left-handed. The antenna consists of four sophisticated antipodal Vivaldi antennas and an… read more here.

Keywords: vivaldi; ultrawideband circularly; high gain; gain ... See more keywords

Mutual Coupling Reduction for a UWB Coplanar Vivaldi Array by a Truncated and Corrugated Slot

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Published in 2018 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2018.2873115

Abstract: This letter reports mutual coupling reduction in an ultrawideband coplanar Vivaldi array (CVA) by incorporating truncated and corrugated slot at the border between adjacent elements. An examination of CVAs shows that mutual coupling in the… read more here.

Keywords: slot; mutual coupling; corrugated slot; structure ... See more keywords

Miniaturized Ultrawideband Half-Mode Vivaldi Antenna Based on Mirror Image Theory

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Published in 2020 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2020.2977503

Abstract: A novel miniaturized ultrawideband (UWB) half-mode Vivaldi (HM-Vivaldi) antenna based on mirror image theory is proposed in this letter. The antenna consists of half a modified radiating arm and two rows of metallized vias, which… read more here.

Keywords: vivaldi; vivaldi antenna; mirror image; theory ... See more keywords

A Novel Ultrawideband Miniature Vivaldi Antenna With Sawtooth Outer Edges and Inclined Elliptical Slots

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Published in 2024 at "IEEE Antennas and Wireless Propagation Letters"

DOI: 10.1109/lawp.2024.3405007

Abstract: A new ultrawideband (UWB) miniaturized Vivaldi antenna with a continuous sawtooth outer edge and two pairs of inclined elliptical slots (SEVA) is proposed in this letter. A step-by-step design method is adopted to design a… read more here.

Keywords: vivaldi; inclined elliptical; vivaldi antenna; elliptical slots ... See more keywords

Millimeter-Wave Pattern Reconfigurable Vivaldi Antenna Using Tunable Resistor Based on Graphene

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Published in 2020 at "IEEE Transactions on Antennas and Propagation"

DOI: 10.1109/tap.2019.2952639

Abstract: In this communication, a millimeter-wave (MMW) pattern reconfigurable Vivaldi antenna utilizing graphene-based tunable resistor is proposed. First, a modified Vivaldi antenna with high front-to-back ratio is achieved by equal proportion slotting on the ground patch.… read more here.

Keywords: vivaldi; pattern reconfigurable; vivaldi antenna; graphene ... See more keywords

Wearable Metamaterial Dual-Polarized High Isolation UWB MIMO Vivaldi Antenna for 5G and Satellite Communications

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Published in 2021 at "Micromachines"

DOI: 10.3390/mi12121559

Abstract: A low-profile Multiple Input Multiple Output (MIMO) antenna showing dual polarization, low mutual coupling, and acceptable diversity gain is presented by this paper. The antenna introduces the requirements of fifth generation (5G) and the satellite… read more here.

Keywords: mimo antenna; uwb mimo; mimo; vivaldi ... See more keywords