Results 81 to 90 of about 162,087 (215)

Design of a Broadband Reconfigurable Transmitarray and Evaluation of Its Radiation and Scattering Characteristics Using an EM‐Acquired CRCS‐Based Link Gain Model

IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.
This paper presents a broadband 1‐bit reconfigurable transmitarray operating at 11.7 GHz, using interdigital structures to achieve a 23.1% 3‐dB transmission‐loss bandwidth without requiring an air gap. An EM‐acquired CRCS‐based link gain model is developed to evaluate the radiation gain, scattering characteristics and gain‐frequency response of the RTA.
Ting‐Hao Shih, Shih‐Cheng Lin, Dai‐Ting Tsai   +2 more
wiley   +1 more source

Closed-Form Analysis of Reflection Losses in Microstrip Reflectarray Antennas [PDF]

, 2012
Microstrip reflectarray antennas consist of a grounded quasi-periodic array of printed elements able to compensate the phase displacement of a non-coherent electromagnetic excitation generated by a feeder.
MONORCHIO, AGOSTINO, COSTA, FILIPPO
core   +1 more source

A Ka-Band High-Efficiency Transparent Reflectarray Antenna Integrated With Solar Cells

IEEE Access, 2018
A transparent reflectarray antenna integrated with solar cells is presented for satellite communications in the paper. The electromagnetic characteristics of solar cells at Ka-band are investigated, and a sub-wavelength X-shaped dipole element is ...
Wenxing An, Lin Xiong, Shenheng Xu, Fan Yang, Hai-Peng Fu, Jian-Guo Ma   +5 more
doaj   +1 more source

Single-Layer Quad-Band Printed Reflectarray Antenna with Dual Linear Polarization

A novel single layer, dual linear polarized unit cell is introduced for a quad-band reflectarray antenna in the Ku-band centered around 12, 13, 14, and 15.5 GHz.
Peixeiro, Custodio, Hasani, Hamed, Skrivervik, Anja, Perruisseau-Carrier, Julien   +3 more
core   +1 more source

Principle of Bifocal Antennas Implemented in a Dual Reflectarray Configuration

, 2015
A procedure to compute the phase distribution on dual reflectarray antennas applying the principle of bifocal antennas is proposed. Two different approaches have been used for centered and offset configurations.
Encinar Garcinuño, José Antonio, Tienda Herrero, Carolina, Guevas Castillo, Jesús Gustavo, Encinar, Jose Antonio, Cuevas Castillo, Jesus Gustavo, Krieger, Gerhard   +5 more
core  

Loss mechanisms of folded reflectarray antennas

, 2010
Folded reflectarray antennas can provide a good solution for millimeter-wave systems requiring compact, low-cost antennas, e.g. in automotive applications.
Dieter, S., Menzel, W., Li, J., Keyrouz, S.   +3 more
core  

Multi-Beam Radiation Intensity Control of a Reflectarray Antenna Using Unit Cell Arrangement [PDF]

Journal of Electromagnetic Engineering and Science
In this paper, multi-beam radiation intensity control of a reflectarray antenna by means of unit cell arrangement is proposed and investigated. A metasurface is designed to achieve reflection in a specific direction, and a circular ring structure with a ...
Jae-Gon Lee
doaj   +1 more source

Terahertz reflectarray antennas: An overview of the state-of-the-art technology

, 2014
A reflectarray antenna combines the advantages of reflectors and phased-arrays. Due to its low profile, low loss, and versatile radiation properties, it has emerged as a new generation of high-gain antennas.
Xu, Shenheng, PIRINOLI, Paola, Shenheng Xu, Paola Pirinoli, Yang, Fan, Ruyuan Deng, Deng, Ruyuan, Fan Yang   +7 more
core   +1 more source

Orbital Angular Momentum (OAM) Antennas via Mode Combining and Canceling in Near-field

Scientific Reports, 2017
Orbital angular momentum (OAM) mode combining and canceling in the near-field was investigated using a Cassegrain dual-reflectarray antenna composed of multiple microstrip patches on the main and sub-reflectarrays.
Woo Jin Byun, Hyung Do Choi, Yong Heui Cho   +2 more
doaj   +1 more source

Design and optimization of a multi-resonant reflectarray element

, 2014
The design and analysis of reflectarray antennas (RAs) often applies the local periodic assumption, whereby all elements are assumed to be identical.
ZICH, RICCARDO, Ha, B. V, Pirinoli, Paola, Hum, S.V., Ha, B. V., Hum, S. V., Zich, R.E., Pirinoli, P., B. V. Ha, R. E. Zich, B.V., Ha, Zich, R. E., P. Pirinoli, S. V. Hum   +13 more
core   +1 more source