Results 181 to 190 of about 4,057 (212)

Coaxial fed hexagonal dielectric resonator antenna for multifrequency operation

Microwave and Optical Technology Letters, 2006
AbstractHexagonal dielectric resonator antenna (HDRA) for multifrequency operation is proposed and investigated experimentally. The proposed antenna, excited by a single coaxial feed, resonates at four frequencies centered at 2.215, 2.784, 3.445, and 3.955 GHz with identical polarization.
V. Hamsakutty, A. V. Praveen Kumar, Jaimon Yohannan, G. Bindu, K. T. Mathew   +4 more
openaire   +1 more source

Investigation of a Multifrequency Reconfigurable Phased Array Antenna

1991
Abstract : The Government has a future requirement to operate several systems simultaneously from a common aperture. A technique has been studied to accomplish this objective by using a control circuit behind each element of the array. The control circuit consists of an arrangement of filters, an attenuator, and a phase shifter. The filters are used to
Allan Gayer, John F. Pedersen
openaire   +1 more source

Electrical tuning of phase-change antennas and metasurfaces

Nature Nanotechnology, 2021
Kye L Okabe, Umberto Celano, H-S Philip Wong   +2 more
exaly  

Hybrid polarized microstrip antenna for multifrequency application

International Journal of RF and Microwave Computer-Aided Engineering, 2017
Debaprasad Barad, Subhrakanta Behera
openaire   +1 more source

Ultra‐Deformable and Tissue‐Adhesive Liquid Metal Antennas with High Wireless Powering Efficiency

Advanced Materials, 2021
Kento Yamagishi, Wenshen Zhou, Terry Ching   +2 more
exaly  

Multifrequency single patch antennas loaded with split ring resonators

2019
Multifrequency antennas with low frequency ratio between frequencies would be desirable for systems that work on different frequency bands which are very close. In this paper multifrequency single patch antennas loaded with Split Ring Resonators (SRRs) are presented.
Montero de Paz, Javier, Ugarte Muñoz, Eduardo, Herraiz Martínez, Francisco Javier, Segovia Vargas, Daniel   +3 more
openaire   +1 more source

Antennas for light

Nature Photonics, 2011
Lukas Novotny, Niek F Van Hulst
exaly  

Flexible and Stretchable Antennas for Biointegrated Electronics

Advanced Materials, 2020
Zhaoqian Xie, Yonggang Huang, John A Rogers   +2 more
exaly  

Nanoplasmonic optical antennas for life sciences and medicine

Nature Reviews Materials, 2018
Hongbao Xin, Bumseok Namgung, Luke P Lee
exaly  

Multifrequency breakdown of antennas in air

Proceedings of the IEEE, 1964
openaire   +1 more source