Results 21 to 30 of about 435 (182)

A reflectarray Using a Dielectric Discretized Concave Mirror Based on Electromagnetic Band Gap [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper presents a reflectarray antenna with an innovative dielectric mirror in the form of a discretized concave reflector. The mirror, manufactured via 3D printing, combines dielectric and air layers, forming an Electromagnetic Band Gap (EBG) that ...
Gustavo Maciulis Dip, Fatima Salete Correra   +1 more
doaj   +1 more source

New Phase Realization Approach for Implementation of Braodband Reflectarrays

International Journal of Information and Communication Technology Research, 2021
We present a new phase realization approach applied to design the broadband single-layer reflectarray antennas. Such an optimization technique minimizes the adverse effects of frequency dispersion which limit the bandwidth of reflectarray antenna ...
Mahmood Rafaei-Booket, Seyed Mostafa Mousavi   +1 more
doaj  

Wide Band Beam Steering Digital Metasurface Reflectarray Antenna for Millimeter Wave Applications

IEEE Access, 2023
A compact wideband digital metasurface reflectarray antenna for millimeter-wave application is presented in this article. The metasurface reflectarray is composed of periodic arrangements of metabit unit cell elements.
Gazali Bashir, Amit K. Singh, Ankit Dubey   +2 more
doaj   +1 more source

Shaped-Pattern Reflectarray Antennas for mm-Wave Networks Using a Simple Cell Topology

IEEE Access, 2022
In this paper, it is proposed the use of ultra-thin reflectarrays in some emerging scenarios in the new mm-wave cellular networks such as 5G, Beyond-5G (B5G), and future 6G.
Borja Imaz-Lueje, Alvaro F. Vaquero, Daniel R. Prado, Marcos R. Pino, Manuel Arrebola   +4 more
doaj   +1 more source

Folded reflectarray antenna

Electronics Letters, 1998
A novel folded reflectarray antenna is presented. This antenna combines a twist and focusing reflector concept in a single printed structure. Together with a printed grid, a low profile and high gain antenna results. A test antenna in the 20 GHz range was designed, fabricated and tested.
D. Pilz, W. Menzel
openaire   +1 more source

Radiation Analysis and Characteristics of Conformal Reflectarray Antennas

International Journal of Antennas and Propagation, 2012
This paper investigates the feasibility of designing reflectarray antennas on conformal surfaces. A generalized analysis approach is presented that can be applied to compute the radiation performance of conformal reflectarray antennas.
Payam Nayeri, Fan Yang, Atef Z. Elsherbeni   +2 more
doaj   +1 more source

W-Band Single-Layer Broadband Reflectarray Antenna

IEEE Access, 2023
In this paper, a W-band single-layer reflectarray antenna is proposed with the advantages of broadband and high aperture efficiency. A novel dual rotation-symmetry windmill element is designed in the W-band, which consists two layers of copper patches ...
Zhicheng Wang, Rui Zhang, Wenke Song, Xiaobo Lin, Bingchuan Xie, Jing Wang, Ruifeng Zhao   +6 more
doaj   +1 more source

Modern Reflectarray Antennas: A Review of the Design, State-of-the-Art, and Research Challenges

IEEE Access
As communication technology advances, high-gain antennas are being investigated for a variety of long-distance applications. One such high gain antenna is reflectarray, it has combined advantageous characteristics of a reflector and phased array antennas.
J. Annal Joy, Sandeep Kumar Palaniswamy, Sachin Kumar, Malathi Kanagasabai, S. Bashyam, Mousa I. Hussein   +5 more
doaj   +1 more source

Design and Fabrication of a dual-polar reflector array antenna for satellite applications [PDF]

فصلنامه علوم و فناوری فضایی, 2020
This paper presents a new unit to design dual linearly polarized reflectarray antenna at ku for satellite telecommunication. Two orthogonal sets of parallel dipoles are used for each polarization to achieve more degree of freedom in the design and wider ...
Alireza HeshmatiMoez, S. Hassan Sedighi, Mohamad Soleimani, Mohamad Khalaj AmirHoseini   +3 more
doaj   +1 more source

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source