Results 81 to 90 of about 1,902,856 (342)

Pencil-Beam Single-point-fed Dirac Leaky-Wave Antenna on a Transmission-Line Grid

, 2016
Leaky-wave antennas (LWAs) are widely used as single-point-fed linear antenna arrays. The extension of LWAs to 2D implies that they can be used as single-point-fed 2D antenna arrays without requiring a complex feeding network.
Dorrah, Ayman H., Eleftheriades, George V.   +1 more
core   +1 more source

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

International Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source

Synthesis of Antenna Arrays and Parasitic Antenna Arrays with Mutual Couplings

International Journal of Antennas and Propagation, 2012
A synthesis method to design multielement antennas with couplings is presented. The main objective is to perform a rigorous determination of the electromagnetic characteristics involved in the design, especially with arrays of moderate sizes.
M. Thevenot, C. Menudier, A. El Sayed Ahmad, G. Zakka El Nashef, F. Fezai, Y. Abdallah, E. Arnaud, F. Torres, T. Monediere   +8 more
doaj   +1 more source

Microstrip Patch Antennas Fed by Substrate Integrated Waveguide [PDF]

, 2013
Dizertační práce je zaměřena na výzkum mikropáskových flíčkových antén a anténních řad napájených vlnovodem integrovaným do substrátu (SIW). Využitím vlnovodu integrovaného do substrátu pro napájení mikropáskové flíčkové antény dochází ke kombinaci ...
Mikulášek, Tomáš
core  

Performance of the Smart Antenna Aided Generalized Multicarrier DS-CDMA Downlink using both Time-Domain Spreading and Steered Space-Time Spreading

, 2005
In this contribution a generalized MC DS-CDMA system invoking smart antennas for improving the achievable performance in the downlink of the system is studied, which is capable of minimizing the downlink interference inflicted upon co-channel mobiles ...
Hanzo, L., Hu, B., Yang, L-L.
core   +1 more source

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

Dual-Polarized 5.75 GHz Optically Transparent Antenna Arrays

IEEE Antennas and Wireless Propagation Letters, 2019
Optically transparent antenna arrays create opportunities to deploy communication systems in more diverse locations due to their transparency and ability to steer energy.
Jean L. Kubwimana, N. Kirsch, Cyle Ziegler, G. Kontopidis, Brough Tuner   +4 more
semanticscholar   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Subarray partition based on sparse array weighted K‐means clustering

Electronics Letters
This paper introduces the subarray partition based on the sparse array weighted K‐means clustering method, which extends the conventional K‐means clustering method through the inclusion of a weight matrix approach. This matrix is derived by recording the
Jiayu Zhao, Jianming Huang, Yansong Cui, Naibo Zhang, Yuxuan Wang, Zilai Wang   +5 more
doaj   +1 more source

3D printed lattice structure for lightweight Ka‐band phased array antenna

Electronics Letters, 2021
Here a lightweight antenna array is designed and fabricated for a Ka‐band phased array antenna. From the perspective of advanced space‐borne engineering practice, a Kagome lattice structure is proposed for the lightweight antenna array applications and ...
Peng Lyu, Xiaofei Ma, Wei Wang, Jing Yang, Yan Li, Hongmou Zhang   +5 more
doaj   +1 more source