Results 21 to 30 of about 3,272 (195)

A dual‐layer polarisation rotating element for transmitarray designs

open access: yesIET Microwaves, Antennas & Propagation, 2023
A transmitarray adopting dual‐layer polarisation rotating (PR) elements is proposed. The element comprises a pair of perpendicularly placed C‐shaped slots etched on the two sides of a single‐layer substrate and orthogonally rotates transmission wave ...
Wei Rao, Yuqing Wang, Lu Guo
doaj   +1 more source

1-Bit Polarization Rotating and Beam-Switching Transmitarray for Millimeter Wave MIMO Applications

open access: yesIEEE Access, 2022
This paper presents a low profile, 1-bit phase quantized, polarization rotating (PR), and switchable beam transmitarray for millimeter-wave (29.7–30.7GHz) MIMO applications. The transmitarray is based on polarization rotating elements, designed on
Javid Ahmad Ganie, Kushmanda Saurav
doaj   +1 more source

Different Designs of Dual-Focus Perforated Transmitarray Antenna in Near/Far-Field Region

open access: yesAdvanced Electromagnetics, 2016
Designs of the single-focus and multi-focused transmitarray antennas for the near-field (NF) or/and far-field (FF) applications have been introduced. Perforated dielectric single sheet is used for transmitarray design for simple configuration.
H. Abd El-Azem Malhat   +2 more
doaj   +1 more source

All Metal Focusing Transmitarray Antenna for High-Temperature Plasma Diagnosis

open access: yesIEEE Access, 2021
In this paper, an all metal focusing transmitarray antenna using a II-shaped slot element is proposed. The transmitarray is formed by stacking four identical metal phase shift layers and three identical square waveguide layers on each other.
Chao Sun, Zheng Zhang, Wenchong Ouyang
doaj   +1 more source

A Wideband Transmitarray Antenna Design Based on the Transmission Characteristic of the UnitCell [PDF]

open access: yesAUT Journal of Electrical Engineering, 2023
In this paper, a procedure is proposed to design a wideband transmitarray upon a specified frequency band. In this way, the phase control parameter of a unit cell is adjusted in a suggested range, ensuring linear phase change and low transmission loss ...
Mohammadreza Salimi Beni   +1 more
doaj   +1 more source

Review Paper on Transmitarray Antennas

open access: yesIEEE Access, 2019
This paper presents a thorough review of transmitarray devices particularly aiming antenna beamsteering, gathering some of the most relevant solutions published by the scientific community in the field.
Joao R. Reis   +2 more
doaj   +1 more source

Ku Band transmitarray lens for microwave applications [PDF]

open access: yes, 2011
In this document a microstrip constrained lens device for Ku band, for microwave purpose, is presented. This paper offers an overview of artificial lens-type devices and the proposed transmitarray lens is thoroughly studied in terms of design and ...
A. Muñoz-Acevedo   +7 more
core   +2 more sources

Students' self-directed learning readiness towards using the “SolveMe” Web in Technical and Vocational Education [PDF]

open access: yes, 2020
Self-directed Learning Readiness (SDLR) is an essential skill in continuous Tearning and Leaching (T&L) that needs to be applied to any student. The study aimed to look at the Self-directed Learning Readiness Level (SDLRL) among the final semester ...
Ahmad, F.   +5 more
core   +1 more source

Dual-Band Focused Transmitarray Antenna for Microwave Measurements

open access: yesIEEE Access, 2020
A dual-band focused transmitarray antenna designed by using frequency selective surfaces (FSS) technique is proposed in this paper. Compared with the traditional transmitarray antenna, the proposed antenna has advantages of good ability to focus ...
Zheng Zhang   +4 more
doaj   +1 more source

An Ultrathin 2-bit Near-Field Transmitarray Lens [PDF]

open access: yes, 2017
A novel ultra-thin Near-Field 2-bit 24x24-element transmitarray lens working at X-Band is presented in this letter. The aim of this antenna is to focus in a point located in the Near-Field without using any complex feeding network.
Arboleya Arboleya, Ana   +6 more
core   +2 more sources

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