Results 21 to 30 of about 3,456 (311)
Novel Wideband Metallic Patch Antennas with Low Profile
International Journal of Antennas and Propagation, 2017 Two planar metallic patch (MP) antennas with low profiles are investigated and compared in this paper. The MP of each antenna consists of metallic patch cells and it is centrally fed by a rectangular slot.
Zhong-Xiang Zhang +3 more
doaj +1 more source
Koch boundary on the square patch microstrip antenna for ultra wideband applications
Alexandria Engineering Journal, 2018 In this paper a novel compact microstrip feed square patch antenna with right angled isosceles Koch fractal geometry on its edges is designed for ultra wideband applications.
Manisha Gupta, Vinita Mathur
doaj +1 more source
Metamaterial-Based Antenna Performance Enhancement for MIMO System Applications
IEEE Access, 2021 This paper presents a method for designing a new two-element ultra-wideband (UWB) multiple-input-multiple-output (MIMO) antenna. We propose the design of an ultra-wideband antenna has been proposed with a study of its properties.
Hedi Sakli +3 more
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Aerospace, 2019 Radio beacons enable measurements of ionospheric radio scintillations and total electron content (TEC). These beacons transmit unmodulated, phase-coherent waves in S-band frequencies. Many satellite applications require circularly polarized (CP) wideband
Peberlin Parulian Sitompul +3 more
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Isolation Improvement of a Microstrip Patch Array Antenna for WCDMA Indoor Repeater Applications
International Journal of Antennas and Propagation, 2012 This paper presents the isolation improvement techniques of a microstrip patch array antenna for the indoor wideband code division multiple access (WCDMA) repeater applications.
Hongmin Lee, Jinwon Park
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a compact printed uwb pacman-shaped mimo antenna with two frequency rejection bands [PDF]
Jordanian Journal of Computers and Information Technology, 2016 In this paper, the design and analysis of microstrip-fed low-profile, compact ultra-wideband (UWB) monopole antenna with its multiple-input multiple-output (MIMO) configurations and two band-notches characteristics are carried out.
Shaimaa Naser, Nihad Dib
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Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Wideband patch antenna through introducing co‐plane terminal
IET Microwaves, Antennas & PropagationWideband operation is a crucial topic in patch structure research. Various wideband methods have been developed for patch antennas. However, some of the key benefits of patch antennas, such as semi‐space radiation and easy fabrication, are degraded.
Boyu Sima +7 more
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From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices
Advanced Engineering Materials, EarlyView.Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle +3 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source