Results 31 to 40 of about 5,669 (203)
Approximate Analytical Technique to Design Reflectarray Antenna
Advanced Electromagnetics, 2016 This paper presents an analysis and design for a reflectarray antenna composed of an array of rectangular patches printed on a grounded dielectric slab.
H. M. Yamani +2 more
doaj +1 more source
Utilization of PEFB reinforced box waste coated super-hydrophobic coating for shoe sole applications [PDF]
, 2020 This paper presents the utilization of palm empty fruit bunches (PEFB) reinforced with box waste for shoe sole applications. The main objective of this study is to determine the optimum composition of PEFB reinforced with box waste for shoe sole ...
Chow, Li Kien +2 more
core +1 more source
IEEE Access, 2020 A gain-enhancement scheme that combines an active integrated antenna (AIA) and an optically transparent reflectarray on solar cells is proposed for CubeSat applications.
Yen-Sheng Chen +2 more
doaj +1 more source
Multi-Beam Circular Polarized Reflectarray on Parabolic Reflector by Variable Rotation Technique
Applied Sciences, 2019 Multi-beams antennas are currently being used for direct broadcast satellite, personal communication satellite, military communication satellite, and high-speed internet applications.
Álvaro Somolinos +3 more
doaj +1 more source
A Ku-Band Foldable Reflectarray Based on a Maltese-Cross Microstrip Element
Известия высших учебных заведений России: Радиоэлектроника, 2021 Introduction. Reflectarrays have a number of design and functional advantages over their closest analogue - reflector antennas (RA). Although microstrip elements are the most preferred reflectarray elements, single-layer microstrip elements do not allow ...
S. V. Polenga +5 more
doaj +1 more source
Bandwidth Improvement in Large Reflectarrays by Using True-Time Delay [PDF]
, 2008 A significant improvement in the bandwidth of large reflectarrays is demonstrated using elements which allow true-time delay. Two identical, large reflectarrays have been designed using different phase distributions to generate a collimated beam.
Barba Gea, Mariano +2 more
core +2 more sources
Using data projector in the methodology course class [PDF]
, 2020 This paper investigates the effect of using data projector in teaching "The methodology of English Language" course on the achievement of male students at Baghdad University in the 2018-2019 academic year. The sample of the study constituted 195 students
T. Salman, Hawraa, Yusoff, Zailin Shah
core +1 more source
International Journal of Antennas and Propagation, 2023 In this article, a single-layer circularly polarized reflectarray antenna (RA) with a linearly polarized feed is proposed for microwave power transmission.
Huaiqing Zhang +5 more
doaj +1 more source
Thermal performance of residential house using interlocking compressed earth brick (ICEB) as an alternative wall material [PDF]
, 2012 Buildings are usually designed and constructed without the concern of its impact to the environment and human comfort. Most contributes to poor thermal performance and high energy consumption.
Razman, Ruzaimah
core
Advanced Materials Technologies, Volume 11, Issue 4, 19 February 2026.An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim +4 more
wiley +1 more source