Results 241 to 250 of about 3,242 (300)

The Aggregated Electromagnetic Vortex Wave and Multi-Modal Imaging Experiment. [PDF]

Sensors (Basel)
Li C, Tan X, Zhu S, Li S, You D, Liu J, Peng W, Wu T, He Y, Liu K, Zhang Z.   +10 more
europepmc   +1 more source

On-Chip OPA: Progress and Prospects in Liquid Crystal, Lithium Niobate, and Silicon Material Platforms. [PDF]

Nanomaterials (Basel)
Wang X, Guo J, Yang Z, Zhang Y, Leng J, Yu Q, Wu J.   +6 more
europepmc   +1 more source

Synergistic Thermal Enhancement of Embedded Micro-Pyramid Array and Advanced Nanofluids for High Heat Dissipation. [PDF]

Micromachines (Basel)
Qin Y, Chen J, Yang X, Yan Y, Zheng S, Ma X, Wang M, Wang C.   +7 more
europepmc   +1 more source

Burg-Aided 2D MIMO Array Extrapolation for Improved Spatial Resolution. [PDF]

Sensors (Basel)
Bekar M, Bekar A, Pirkani A, Baker CJ, Gashinova M.   +4 more
europepmc   +1 more source

PHASED ARRAY 802.11g ANTENNA

, 2016
openaire   +2 more sources

Uniform circular arrays for phased array antenna [PDF]

2011 Loughborough Antennas & Propagation Conference, 2011
This paper compares the performances of a number of uniform circular array (UCA) configurations for phased array antennas. A UCA geometry is targeted due to its symmetrical configuration which enables the phased array antenna to scan azimuthally with minimal changes in its beam width and sidelobe levels.
Nurul H. Noordin, Virgilio Zuniga, Ahmed O. El-Rayis, Nakul Haridas, Ahmet T. Erdogan, Tughrul Arslan   +5 more
openaire   +2 more sources

Positional Modulation Design Based on Multiple Phased Antenna Arrays [PDF]

IEEE Access, 2019
Traditional directional modulation (DM) designs are normally based on a single phased array, with the assumption that eavesdroppers and desired users are in different directions.
Bo Zhang, Ｗei Liu, Ｗei Liu
exaly   +2 more sources

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Education in antennas - phased antenna arrays

17th International Conference on Applied Electromagnetics and Communications, 2003. ICECom 2003., 2004
The paper describes the new tasks related to the subjects taught at the department of the electromagnetic field. These tasks demonstrate the influences of supply amplitudes, supply phases, antenna element placement and antenna element parameters.
P. Cerny, M. Mazanck, J. Mrkvica, M. Polivka   +3 more
openaire   +1 more source

Phase detection of horn antenna arrays

2007 IEEE Antennas and Propagation International Symposium, 2007
An simple approach for phase matching in horn antenna arrays is presented, in which a waveguide detector is used to measuring the phase distribution on the horn aperture plane. The relative phase differences can become almost the same by adjusting the phase shifter, thus phase matching is achieved.
Ling-Yun, Luo, Qing-Xin, Chu
openaire   +1 more source

Infrared phased‐array antenna

Microwave and Optical Technology Letters, 2008
AbstractPhased addition of currents from multiple dipole antennas is demonstrated for the first time at a wavelength of 10.6 μm. Coplanar strip lines are used to interconnect the antennas, preserving the phase of the individual infrared‐frequency currents, which are summed together at a common bolometric load.
Middlebrook, Christopher T., Krenz, Peter M., Lail, Brian A., Boreman, Glenn D.   +3 more
openaire   +2 more sources