Results 71 to 80 of about 16,921 (260)

Arbitrary Orthogonal Polarization Decomposition and Routing With Complex Amplitude Modulation via Wheel‐of‐Fortune‐Inspired Metasurfaces

Advanced Science, EarlyView.
This work demonstrates a receiver‐transmitter‐integrated metasurface that decomposes an incident wave into orthogonal components and routes them into separate channels. Inspired by a “Wheel‐of‐Fortune” mechanism, it enables independent control over the amplitude, phase, and polarization of the transmitted wave.
Tong Liu, Changhong Dai, Weike Feng, Yanzhao Wang, Wenxin Liu, Wentao Zhang, Chao Tian, Guangwei Hu, He‐Xiu Xu   +8 more
wiley   +1 more source

TWO ELEMENT MICROSTRIP ANTENNA ARRAY USING STAR SLOT ELECTROMAGNETIC BAND GAP STRUCTURE [PDF]

Journal of Engineering Science (Chişinău), 2019
This paper deals with the performance of two element antenna array without and with electromagnetic band gap structures. The antenna arrays are using Mentor Graphics IE3D software and measurements have been taken using vector network analyzer.
Rao, K. Prahlada, Vani, R.M, Hunagund, P.V.   +2 more
doaj   +1 more source

Survey of Inter-satellite Communication for Small Satellite Systems: Physical Layer to Network Layer View [PDF]

, 2016
Small satellite systems enable whole new class of missions for navigation, communications, remote sensing and scientific research for both civilian and military purposes.
Afghah, Fatemeh, Burleigh, Scott, Edmonson, William, Pinto, Frank, Radhakrishnan, Radhika, Rodriguez-Osorio, R.   +5 more
core   +3 more sources

Concurrently Achieving 4.6 W/M2 and 120,000 Cyclability Enabled by Extendable Swing Arms in Rotational Triboelectric Nanogenerator

Advanced Science, EarlyView.
A rotational energy harvesting device that successfully reconciles high power density with mechanical durability through a hybrid sliding‐and‐bouncing kinematic mechanism is reported. The success reported in our paper includes addressing a dilemma where enhanced electrical output comes at the cost of increased friction and wear, limiting the practical ...
Yihong Lin, Jiaming Zhou, In‐Yong Suh, Eunjong Kim, Kin Chiu Yip, Dae‐jin Kim, Jang‐Mook Jeong, Young‐Jun Kim, Jinyoung Jeon, Ju‐Hyuck Lee, Yoon‐Hwae Hwang, Sang‐Woo Kim, Dong‐Myeong Shin   +12 more
wiley   +1 more source

Performance of Hybrid NbTiN-Al Microwave Kinetic Inductance Detectors as Direct Detectors for Sub-millimeter Astronomy

, 2014
In the next decades millimeter and sub-mm astronomy requires large format imaging arrays and broad-band spectrometers to complement the high spatial and spectral resolution of the Atacama Large Millimeter/sub-millimeter Array.
Baryshev, A. M., Baselmans, J. J. A., Endo, A., Ferrari, L., Janssen, R. M. J., Klapwijk, T. M., Yates, S. J. C.   +6 more
core   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

FORMATION OF THE DIRECTION DIAGRAM IN PHASED ANTENNA ARRAY

Российский технологический журнал, 2019
The article presents the results of the study of phase and temporal methods in the formation of the direction diagram of phased antenna array, and carries out a comparative analysis using an eight-element equidistant antenna array based on Vivaldi ...
N. M. Legkiy, I. V. Unchenko
doaj   +1 more source

The bolometric focal plane array of the Polarbear CMB experiment

, 2012
The Polarbear Cosmic Microwave Background (CMB) polarization experiment is currently observing from the Atacama Desert in Northern Chile. It will characterize the expected B-mode polarization due to gravitational lensing of the CMB, and search for the ...
Ade, P. A. R., Anthony, A. E., Arnold, K., Barron, D., Boettger, D., Borrill, J., Chapman, S., Chinone, Y., Dobbs, M. A., Errard, J., Fabbian, G., Flanigan, D., Fuller, G., Ghribi, A., Grainger, W., Halverson, N., Hasegawa, M., Hattori, K., Hazumi, M., Holzapfel, W. L., Howard, J., Hyland, P., Jaffe, A., Jeune, M. Le, Keating, B., Kermish, Z., Kisner, T., Lee, A. T., Linder, E., Lungu, M., Matsuda, F., Matsumura, T., Meng, X., Miller, N. J., Morii, H., Moyerman, S., Myers, M. J., Nishino, H., Paar, H., Quealy, E., Reichardt, C., Richards, P. L., Ross, C., Shimizu, A., Shimmin, C., Shimon, M., Sholl, M., Siritanasak, P., Spieler, H., Stebor, N., Steinbach, B., Stompor, R., Suzuki, A., Tomaru, T., Tucker, C., Zahn, O.   +55 more
core   +3 more sources

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Broadband modified turnstile antenna Patent [PDF]

, 1970
Broadband modified turnstile antenna for use in space tracking and ...
Lemson, P. H.
core   +1 more source