Results 11 to 20 of about 1,854,391 (268)
IEEE Access, 2017 A low profile differential-fed dual-polarized microstrip patch antenna (MPA) with bandwidth enhancement is proposed under radiation of the first and second odd-order resonant modes.
Neng-Wu Liu +3 more
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SPPs-Shared Dual-Band Antenna With Large Frequency Ratio
IEEE Access, 2020 The operating frequency of future communication systems will cover both microwave and millimeter-wave (MMW) bands simultaneously. This paper presents a novel design of spoof surface plasmon polaritons (SPPs) structure-shared dual-band antenna with large ...
Jian-Xin Chen +2 more
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A Double-Layer Highly Efficient and Wideband Transmitarray Antenna
IEEE Access, 2019 A double-layer highly efficient and wideband transmitarray antenna is presented. The transmitarray element is composed of four metal vias and two crosspatches with two stubs. The metal vias penetrate the entire substrate and arrange symmetrically.
Xiang-Jie Yi +5 more
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Low-Profile Slotted Metamaterial Antenna Based on Bi Slot Microstrip Patch for 5G Application
Sensors, 2020 A low-profile high-directivity, and double-negative (DNG) metamaterial-loaded antenna with a slotted patch is proposed for the 5G application. The radiated slotted arm as a V shape has been extended to provide a low-profile feature with a two-isometric ...
Ahasanul Hoque +2 more
doaj +1 more source
A low profile wideband broadside dual-mode compressed dipole antenna
Nantong Daxue xuebao. Ziran kexue ban, 2022 When the dipole works at the second mode, the current on the feed point which is located at the end of the dipole arm is zero. Thus, the second-order mode of a dipole has an extremely large input impedance and is difficult to realize impedance matching ...
DING Xinhao YANG Wenwen CHEN Jianxin
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Design of Low Profile and Wideband End-Fire Antenna Using Metasurface
IEEE Access, 2020 In this paper, a metasurfing (MS) concept is demonstrated and applied in the design of the low profile and wideband endfire antenna on metallic surface environments.
Ping Wang, Qi Wu, Rong-Bu He, Yu Shao
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IEEE Access, 2021 A low-profile transmissive metasurface is proposed to synthesize contour beam pattern for a European region. A slot array feed is used to illuminate same size metasurface aperture with a plane wave at a near field distance of 24 mm.
Abdul Aziz +3 more
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Low Profile EBG Resonator Antennas [PDF]
International Journal of Antennas and Propagation, 2009 An Electromagnetic Band Gap (EBG) antenna is a planar structure which is composed of a cavity and an EBG material. In most applications, the height of the EBG antenna is half wavelength. We present in this paper the conditions to reduce the profile of an EBG antenna to subwavelength values.
Chantalat, Régis +4 more
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Bandwidth-Enhanced Low-Profile Magneto-Electric Dipole Antenna With Shorting Parasitic Elements
IEEE Access, 2021 This paper presents a low-profile magneto-electric (ME) dipole antenna with an enhanced impedance bandwidth realized by the loading of shorting parasitic elements.
Son Trinh-Van +4 more
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Profiles of low complexity regions in Apicomplexa [PDF]
BMC Evolutionary Biology, 2016 Low complexity regions (LCRs) are a ubiquitous feature in genomes and yet their evolutionary history and functional roles are unclear. Previous studies have shown contrasting evidence in favor of both neutral and selective mechanisms of evolution for different sets of LCRs suggesting that modes of identification of these regions may play a role in our ...
Fabia U. Battistuzzi +5 more
openaire +2 more sources