Results 91 to 100 of about 302,217 (218)

Reflectarray antennas for terahertz communications

, 2012
Reflectarrays composed of resonant microstrip gold patches on a dielectric substrate are demonstrated for operation at terahertz frequencies. Based on the relation between the patch size and the reflection phase, a progressive phase distribution is implemented on the patch array to create a reflector able to deflect an incident beam towards a ...
Niu, Tiaoming, Withayachumnankul, Withawat, Ung, Benjamin S. -Y., Menekse, Hakan, Bhaskaran, Madhu, Sriram, Sharath, Fumeaux, Christophe   +6 more
openaire   +2 more sources

PhaseNet: A Deep Learning Framework for Reflectarray Antenna Gain Prediction by Integrating 2D Phase Maps and Angular Embeddings

Mathematics
Reflectarray antenna design traditionally depends on computationally intensive full-wave simulations and experimental measurements, which significantly increase design time and cost.
Seoyeon Oh, Seongmin Pyo, Haneol Jang
doaj   +1 more source

Aperture-Shared Reflectarray Antenna for Sub-6 GHz and Mm-Wave Dual-Band Dual Circular Polarization Independent Beam-Shaping

This article presents an aperture shared reflectarray supporting Sub 6 GHz and millimeter wave mm wave dual band dual circular polarization independent beam shaping A square patch is implemented in the top layer working at Sub 6 GHz The Sub 6 GHz patch ...
Yang, Y, Zhu, J, Xue, Q
core   +1 more source

Design of High Gain Low Cost Beam-Steering Reflectarray Antenna

, 2019
Design of a low cost and high gain reflectarray antenna is presented in this paper. A 28 × 28 element reflectarray surface has been designed for beam steering between -40° and +40° from the broadside.
Kausar, Ahmed, Mehrpouyan, Hani, Hani Mehrpouyan, Saeideh Shad, Shad, Saeideh, Kausar, Shafaq, Ahmed Kausar, Shafaq Kausar   +7 more
core   +1 more source

Investigation of Aperture Coupled Microstrip Antenna to Obtain a High Efficient Active Integrated Antenna by Using Class F and Inverse Class F Power Amplifiers [PDF]

, 2013
In wireless communications and radar systems, there are requirements for high efficiency, small size, low cost, and wide bandwidth of transmitter front –end usage for commercial and also military applications.
Liu, Lei
core  

Development of an X-Band Reflectarray Antenna for Satellite Communications. [PDF]

Sci Rep, 2021
Ma B, Lu F, Zhi G, Xue X, Zhao X, Ma C, Fan Y, Yang M.   +7 more
europepmc   +1 more source

Beam-Scanning Reflectarray Based on a Single Varactor-Tuned Element

International Journal of Antennas and Propagation, 2012
A single varactor-tuned element is investigated as effective solution for the realization of reconfigurable reflectarray antennas. The proposed configuration is successfully implemented for the design of an X-band reflectarray prototype of 3×15 radiators.
F. Venneri, S. Costanzo, G. Di Massa, E. Marozzo, A. Borgia, P. Corsonello, M. Salzano   +6 more
doaj   +1 more source

Metasurface-based THz reflectarray antenna with vortex multiplexing and beam-steering capabilities for future wireless communications. [PDF]

iScience, 2022
Ali A, Khalily M, Brown T, Tafazolli R.
europepmc   +1 more source

A Single Layer High-Gain Terahertz Reflectarray Antenna for Next Generation Wireless Communication

Journal of High-Frequency Communication Technologies
The design and development of terahertz (THz) reflectarray antenna is presented with a hybrid asteroid–stub–cross unit cell to achieve continuous and complete 360° reflection-phase coverage with minimal amplitude variation of -1.6 dB for an operating ...
Prhishi Santhakumar, Preetha Purusothaman   +1 more
doaj   +1 more source

A Printed Reflectarray with Annular Patches [PDF]

, 2007
Vietti Colome, G.C., M. Orefice, VIETTI, GUILLERMO CARLOS, P. Pirinoli, G.C. Vietti Colome, Pirinoli, Paola, G.L. Dassano, Orefice, Mario, Dassano, Gianluca   +8 more
core   +1 more source