Results 41 to 50 of about 181 (138)

Reconfigurable SIW-Based Leaky-Wave Antenna Composed of Longitudinal Cells

open access: yesIEEE Access, 2021
A novel fixed frequency beam-steering leaky-wave antenna (LWA) is presented in this manuscript. Radiation occurs through thin offset longitudinal slots etched on a substrate integrated waveguide (SIW).
Nima Javanbakht   +3 more
doaj   +1 more source

A Circularly Polarised Zero Beam‐Squinting Leaky‐Wave Antenna With Increased Gain Using NRI‐TL Metamaterials

open access: yesIET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.
The proposed design consists of two oppositely directed negative‐refractive‐index transmission‐line (NRI‐TL) LWAs, which are fed through an NRI‐TL balun that adds a 180° phase difference between the two output signals, resulting in increased gain and circular polarisation.
Kyriakos Neophytou   +2 more
wiley   +1 more source

Mechanical Properties of Coconut Shell Lightweight Aggregate Concrete: A Comprehensive Review

open access: yesAdvances in Civil Engineering, Volume 2025, Issue 1, 2025.
Using agricultural wastes as construction materials for environmentally friendly construction offers practical and economic advantages. Several types of agricultural wastes have been researched and proposed to the industry for sustainable construction.
Alireza Javadi Pordesari   +4 more
wiley   +1 more source

One-dimensional leaky-wave antenna producing multiple beams

open access: yesAIP Advances, 2017
In this paper, far-field pattern of one-dimensional leaky-wave antenna (LWA) is directly synthesized by sinusoidally modulating surface currents of the antenna.
Xiang Wan, Tian Yi Chen, Tie Jun Cui
doaj   +1 more source

ISEV2023 Abstract Book

open access: yes, 2023
Journal of Extracellular Vesicles, Volume 12, Issue S1, May 2023.
wiley   +1 more source

Design and Analysis of Sierpinski Fractal Antennas for Millimeter‐Wave 5G and Ground‐Based Radio Navigation Applications

open access: yesTransactions on Emerging Telecommunications Technologies, Volume 35, Issue 11, November 2024.
This study comprises distinct sections: abstract, introduction, and review of related papers. It delves into design and simulation, utilizing tools like CST, VNA, power sensors, and spectrum analyzers. Verification is conducted through diverse angles of radiation measurement. The research employs a comprehensive approach to advance understanding in the
Arun Raj, Durbadal Mandal
wiley   +1 more source

Null‐depth coordinated synthesis design approach to azimuthal null frequency scanning antennas

open access: yesIET Microwaves, Antennas &Propagation, Volume 18, Issue 10, Page 763-770, October 2024.
A novel synthesis design approach to multimode resonant, azimuthal null frequency scanning antennas (ANFSAs) coordinated by null‐depth is presented. The antenna is composed of a principal radiator and an auxiliary one fed by an unequal‐split power divider.
Xiao‐Hui Mao   +3 more
wiley   +1 more source

Single-Beam Leaky-Wave Antenna With Lateral Continuous Scanning Functionality Based on Spoof Surface Plasmon Transmission Line

open access: yesIEEE Access, 2019
A continuous beam scanning leaky-wave antenna (LWA) supporting lateral radiation is proposed in this paper. It is based on a spoof surface plasmon (SSP) transmission line (TL) which is a single-layer conductor structure.
Leilei Liu   +4 more
doaj   +1 more source

Wideband multibeam mushroom antenna array with low‐temperature cofired ceramic‐integrated pillbox transition for millimetre‐wave applications

open access: yesIET Microwaves, Antennas &Propagation, Volume 18, Issue 4, Page 188-195, April 2024.
This paper presents a wideband LTCC‐integrated multibeam array antenna based on an optical pillbox system and a mushroom radiating array. A novel unit model method is used to predict the performance of the PPW‐type component with an electrically large size.
Bin Yuan   +5 more
wiley   +1 more source

A W‐band long‐slot array antenna with two‐dimensional beam‐scanning capability

open access: yesIET Microwaves, Antennas &Propagation, Volume 18, Issue 4, Page 231-238, April 2024.
A W‐band long‐slot array antenna, with 2‐dimensional beam‐scanning capability, is studied, designed, and validated by measurements. This antenna, containing a one‐dimensional long‐slot array, a parabolic reflector, and multiple feeding ports, has a pass band from 85 to 102.8 GHz.
Tianye Ma   +4 more
wiley   +1 more source

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