Results 321 to 330 of about 1,112,681 (393)

Flexible and Stretchable Antennas for Biointegrated Electronics

Advances in Materials, 2019
Combined advances in material science, mechanical engineering, and electrical engineering form the foundations of thin, soft electronic/optoelectronic platforms that have unique capabilities in wireless monitoring and control of various biological ...
Zhaoqian Xie, Raudel Avila, Yonggang Huang, J. Rogers   +3 more
semanticscholar   +1 more source

Isolation Enhancement for MIMO Patch Antennas Using Near-Field Resonators as Coupling-Mode Transducers

IEEE Transactions on Antennas and Propagation, 2019
In this paper, a novel decoupling technique for closely packed patch antennas using near-field resonator (NFR) above each antenna element is proposed.
Min Li, Bin Zhong, S. Cheung
semanticscholar   +1 more source

Nanowire Antenna Emission

Nano Letters, 2012
We experimentally demonstrate the directional emission of polarized light from single semiconductor nanowires. The directionality of this emission has been directly determined with Fourier microphotoluminescence measurements of vertically oriented InP nanowires.
Grzela, G., Paniagua Dominguez, R., Barten, T., Fontana, Y, Sánchez-Gil, J.A., Gomez Rivas, J.   +5 more
openaire   +2 more sources

Single Ring Slot-Based Antennas for Metal-Rimmed 4G/5G Smartphones

IEEE Transactions on Antennas and Propagation, 2019
In this paper, multiband antennas based on a single ring slot are proposed for 4G/5G smartphone applications. The basic structure of the antenna is consisted of a large metal ground and an unbroken metal rim, in which a single 2 mm-wide ring slots is ...
Quangang Chen, Huawei Lin, Jianpeng Wang, Lei Ge, Yujian Li, Tianqi Pei, C. Sim   +6 more
semanticscholar   +1 more source

Spiral antennas and antenna arrays

2005 IEEE Antennas and Propagation Society International Symposium, 2005
The planar square-Archimedean spiral located at the center of a dipole has been demonstrated as a valuable passive antenna element in the upper MM-wave and THz regions between about 100 GHz and 2 THz (Bjarnason, E. et al., Appl. Phys. Lett., vol.85, p.3983, 2004).
R.M. Bilotta, E.B. Brown
openaire   +1 more source

Isolation Enhancement in Closely Coupled Dual-Band MIMO Patch Antennas

IEEE Antennas and Wireless Propagation Letters, 2019
This letter presents a closely coupled dual-band multiple-input–multiple-output (MIMO) patch antenna that resonates at 3.7 and 4.1 GHz. The MIMO antenna is composed of two mirror-symmetrical single-feed patch antennas that are closely placed with ...
Zicheng Niu, Hou Zhang, Qiang Chen, Tao Zhong   +3 more
semanticscholar   +1 more source

BesselBeam Antennas

2021
The capability of controlling the spatial broadening of the radiation moving away from the relevant sources is considered a very attractive feature for a plethora of applications, such as imaging, diagnostic, and wireless power transfer. An important class of ideal solutions of the scalar wave equation that remain confined and do not undergo ...
Comite, Davide, Fuscaldo, Walter, Burghignoli, Paolo, Galli, Alessandro, Baccarelli, Paolo   +4 more
openaire   +2 more sources

Tightly Arranged Four-Element MIMO Antennas for 5G Mobile Terminals

IEEE Transactions on Antennas and Propagation, 2019
In this paper, a compact multiple-input multiple-output (MIMO) antenna is presented for 5G mobile terminals. The antenna consists of four tightly arranged elements and three lumped components. The edge-to-edge distance between adjacent elements is only 1
Changjiang Deng, Di Liu, X. Lv
semanticscholar   +1 more source

Large antennas and microwave antennas

2005
Large antennas and microwave antennas, which form the subject of the remaining chapters of this book, are characterized by the property that their useful dimensions are very large compared with the wavelength involved. The word ‘large’ refers to the physical dimensions of the antenna (radio telescopes, for example) compared with which the wavelengths ...
S. Drabowitch, A. Papiernik, H. D. Griffiths, J. Encinas, B. L. Smith   +4 more
openaire   +1 more source

A Simple Technique for Open-Stopband Suppression in Periodic Leaky-Wave Antennas Using Two Nonidentical Elements Per Unit Cell

IEEE Transactions on Antennas and Propagation, 2018
A simple technique is presented for the complete suppression of the open stopband in periodic leaky-wave antennas using two similar but nonidentical elements per unit cell.
Juhua Liu, Wenlong Zhou, Y. Long
semanticscholar   +1 more source