A single‐layer Ka‐band broadband reflectarray antenna using log‐periodic elements
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32018
Abstract: This letter presents a novel log‐periodic reflectarray element based on a single‐layer substrate. To achieve a full 360° phase coverage with a gentle slope, the corresponding parameters are optimized. For the sake of minimizing the… read more here.
Keywords: antenna; single layer; log periodic; reflectarray antenna ... See more keywords
Log‐periodic antenna effect on modulated signals in regions of negative group delay
Sign Up to like & getrecommendations! Published in 2024 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.34337
Abstract: In frequency regions where ultra‐wide band log‐periodic antennas exhibit negative group delay (NGD), the effect of higher‐order modes upon amplitude‐modulated signals is examined using convolution theory. It is shown that in these frequency regions, the… read more here.
Keywords: modulated signals; effect; group delay; negative group ... See more keywords
Design of a wideband microstrip nanoantenna array
Sign Up to like & getrecommendations! Published in 2019 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-019-1852-6
Abstract: This paper presents the design of a logarithmic array of microstrip nano-antennas at terahertz frequencies. For applications in which small antennas are required, microstrip antennas are preferred. However, they have a narrow bandwidth. To overcome… read more here.
Keywords: log periodic; microstrip; nanoantenna array; microstrip nanoantenna ... See more keywords
Enhanced Gain Dual-Port Compact Printed Meandered Log-Periodic Monopole Array Antenna Design with Octagonal-Ring Shaped FSS for Broadband 28 GHz Applications
Sign Up to like & getrecommendations! Published in 2024 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-024-09256-3
Abstract: In this article, we propose a microstrip-fed printed meandered log-periodic monopole array (PMLPMA), and its dual-port configuration incorporating an octagonal ring frequency selective surface (FSS) layer. The dual-port PMLPMA antenna system has a compact structure… read more here.
Keywords: antenna; octagonal ring; dual port; log periodic ... See more keywords
Quantum oscillations turn log(B )-periodic in Dirac semimetals: ‘Who ordered that?’
Sign Up to like & getrecommendations! Published in 2019 at "National Science Review"
DOI: 10.1093/nsr/nwz016
Abstract: Quantum oscillations refer to the oscillatory behavior of transport and thermodynamic quantities as a function of the applied magnetic field B in metals and semimetals. The primary examples are the Shubnikov–de Haas (SdH) oscillations in… read more here.
Keywords: quantum oscillations; log periodic; periodic dirac; dirac semimetals ... See more keywords
Electrothermal Design of Bidirectional Wide-Boom Log-Periodic Antennas
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2017.2670536
Abstract: A wide-boom, microstrip-fed planar bidirectional log-periodic (LP) antenna is proposed and improvements in its impedance match, radiation, and thermal performances are demonstrated. The boom width of each arm is increased by moving its virtual apexes… read more here.
Keywords: log periodic; boom; physics; wide boom ... See more keywords
A Novel Printed Dual-Log-Periodic Array Antenna for UHF Near-Field RFID Applications
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2018.2874202
Abstract: A novel printed center-fed dual-log-periodic array antenna is proposed for ultrahigh frequency (UHF) radio frequency identification (RFID) applications. The proposed antenna is composed of two reversed wideband printed log-periodic dipole array antennas. Two closely spaced… read more here.
Keywords: array; log periodic; array antenna; dual log ... See more keywords
A UHF Deployable Log Periodic Dipole Antenna: Concept, Design, and Experiment
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2020.3004986
Abstract: A deployable log periodic dipole antenna (DLPDA) is proposed. The antenna consists of pairs of collapsible steel tape springs (as the dipoles), a novel stretchable zigzag double-sided parallel stripline (ZDPS) (as the boom), and a… read more here.
Keywords: log periodic; dipole antenna; periodic dipole; deployable log ... See more keywords
An Ultrawideband H-Plane Monopulse Log-Periodic Antenna for Jamming Signal Finding
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2024.3418208
Abstract: This communication proposes an ultrawideband (UWB) H-plane monopulse log-periodic antenna designed for UAV applications in jamming signal detection. The main radiators are two log-periodic dipole antennas (LPDAs). Good isolation between the two LPDA elements is… read more here.
Keywords: plane monopulse; jamming signal; periodic antenna; log periodic ... See more keywords
A Novel Miniaturized Log-Periodic Vee-Dipole Antenna Based on 2-D-Folded Structure for UltraWideband (UWB) Applications
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Antennas and Propagation"
DOI: 10.1109/tap.2025.3560487
Abstract: This communication presents a miniaturized log-periodic vee-dipole array (LPVDA) that incorporates 2-D-folded Vee-dipole structures for a compact and efficient design. Utilizing Vee bending and miniaturization techniques based on curved current paths, the proposed design achieves… read more here.
Keywords: miniaturized log; periodic vee; vee dipole; array ... See more keywords
Design and Validation of a Microstrip Log-Periodic Feedline-Based Filter for Microwave Imaging of Rebar
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2024.3481566
Abstract: The attenuation characteristics exhibited by structural materials are of significant importance in a wide range of engineering applications, as they directly impact the performance and longevity of these materials. This study introduces a new methodology… read more here.
Keywords: methodology; log periodic; attenuation; periodic feedline ... See more keywords