Results 61 to 70 of about 409 (184)

A Wideband Multibeam Transmitarray Antenna Based on 3‐D FSS

IET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.
This paper presents a novel method for designing a wideband dual‐polarised multibeam transmitarray antenna. Through numerical calculations, simulations and measurements, the TA demonstrates outstanding multibeam radiation characteristics. ABSTRACT This paper presents a novel method for designing a wideband dual‐polarised multibeam transmitarray antenna.
Longfei Wang, Wanping Zhang, Yumei Chang, Bo Li, Lei Zhu   +4 more
wiley   +1 more source

Broadband Lumped Mirror Array mmWave Antenna for Wireless and Defense Systems

Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
This article introduces a novel lumped mirror array mmWave antenna designed for multiband microwave applications, including 5G, satellite communication, and defense systems. The antenna operates over a broad frequency range from 4.7 to 67.63 GHz, offering excellent impedance bandwidth of 70.4%. Developed on an FR‐4 substrate with dimensions of 160 × 70 
Manish Varun Yadav, Lanston Pramith Fernandes, Swati Varun Yadav, Tanweer Ali, Dinesh Yadav, Vikas Singh, Kirti Panwar bhati, Shonak Bansal   +7 more
wiley   +1 more source

Reflectarray Antenna for Simultaneous Near-Field Fronthaul and Far-Field Backhaul Links in Next 5G FR2 Femtocells

IEEE Open Journal of Antennas and Propagation
This work presents a reflectarray-based base station antenna to integrate both backhaul (BH) and fronthaul (FH). The reflectarray operates at 28 GHz in dual linear polarization, using one polarization for the BH and another for the FH. The BH is a pencil
Alvaro F. Vaquero, Borja Imaz-Lueje, Marcos R. Pino, Manuel Arrebola   +3 more
doaj   +1 more source

Millimeter Wave Beam Steering Reflectarray Antenna Based on Mechanical Rotation of Array

IEEE Access, 2019
This work provides design and analysis of a beam steering reflectarray antenna, designed at 26 GHz, based on the mechanical rotation of the array. Unit cells based on circular ring elements are designed, and scattering parameter measurements have been ...
Muhammad Inam Abbasi, Muhammad Hashim Dahri, Mohd Haizal Jamaluddin, Norhudah Seman, Muhammad Ramlee Kamarudin, Noor Hafizah Sulaiman   +5 more
doaj   +1 more source

CUDA-Based Particle Swarm Optimization in Reflectarray Antenna Synthesis

Advanced Electromagnetics, 2020
We show how reflectarray antenna synthesis can take profit from parallel computing on Graphics Processing Units (GPUs). The presented approach uses an implementation of Particle Swarm Optimization in CUDA language and accelerates the computation of the ...
A. Capozzoli, C. Curcio, A. Liseno
doaj   +1 more source

Offset-fed microstrip reflectarray antenna

Electronics Letters, 1994
A microstrip reflectarray fed with a feed horn offset at a given angle is demonstrated for the first time. The phase considerations for an offset feed horn are applied to a 12 element array of rectangular microstrip patch antennas, operating in X-band, allowing accurate predictions of the redirected radiation based on the offset angle of the feed horn.
R.D. Javor, X.-D. Wu, K. Chang
openaire   +1 more source

A high gain and high radiation efficiency optical transparent Fabry–Perot cavity antenna

Electronics Letters, Volume 60, Issue 8, April 2024.
A novel high gain, high efficiency optically transparent Fabry–Perot Cavity antenna operating in millimetre‐wave is proposed. The antenna employs dual layers of transparent reflective surfaces and a transparent electromagnetic band gap ground to enhance the work band and obtain a high gain radiation.
Kang An, Peng Sun, Aixin Chen
wiley   +1 more source

Stretchable-Substrate-Impregnated Fabric: Deployable Reflectarray Antennas for CubeSats

IEEE Access
This paper proposes a stretchable-substrate-impregnated fabric for deployable high-gain antenna for small satellites. Constellations of small satellites offer worldwide coverage of wireless communication and earth observation; high-gain antennas are ...
Masato Machida, Takashi Tomura, Hiraku Sakamoto, Tomohiro Fukao   +3 more
doaj   +1 more source

Bandwidth Behavior of Closely Spaced Aperture-Coupled Reflectarrays

International Journal of Antennas and Propagation, 2012
The bandwidth features of reflectarray antennas are analyzed by examining in detail the phase errors due to the compensation mechanism for spatial phase delays.
F. Venneri, S. Costanzo, G. Di Massa
doaj   +1 more source

Axially symmetric dual‐reflectarray antennas

Electronics Letters, 2014
An axially symmetric dual‐reflectarray antenna is proposed. A main reflectarray is designed to mimic a paraboloidal main reflector, and a sub‐reflectarray is designed to mimic a hyperboloidal or an ellipsoidal sub‐reflector. The dual‐reflectarray antenna is more compact than the conventional curved dual reflector.
Ji Hwan Yoon, Young Joong Yoon, Woo‐sang Lee, Joon‐ho So   +3 more
openaire   +1 more source