Results 31 to 40 of about 25,408 (310)
IET Microwaves, Antennas & Propagation, 2021 Two metamaterial‐based linear phased array antennas with improved wide‐angle scanning bandwidth are designed in this study. Metamaterial antenna element consists of a metamaterial patch, periodic metal strips, distributed metal strips and slot coupling ...
Qi Zhang +5 more
doaj +1 more source
Antenna simulator permits preinstallation system checkout [PDF]
, 1966 Antenna simulator provides for evaluation checkout of corporate feeds, monopulse sum-and-difference networks, etc., in a shielded environment prior to system checkout on an antenna pattern range.
Elia, A. D., Schmidt, R. F.
core +1 more source
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
The Journal of EngineeringA printed circularly polarised antenna array is presented that utilizes the inherent good bandwidth and stable gain of magneto‐electric dipoles in combination with the wideband benefits of a sequential rotation feed technique.
Elmien Coetzer +2 more
doaj +1 more source
Three-Dimensional Dual-Band Dielectric Resonator Antenna for Wireless Communication
IEEE Access, 2020 A three-dimensional dual-band dielectric resonator antenna, comprised of five rectangular dielectric resonator (RDR) radiating elements, is proposed for wireless communication applications.
Shailesh Mishra +4 more
doaj +1 more source
Variable-beamwidth antennas [PDF]
, 1974 Two effective designs have been developed for Cassegrain and Gregorian antenna configurations. Each provides for both high-gain and low-gain operations.
Schmidt, R. F.
core +1 more source
Frequency selective lens antenna [PDF]
, 2007 A variant of the hemispherical microwave lens antenna is reported where the ground plane region is modified through use of a frequency selective surface. This allows discrimination of frequencies by two closely spaced primary feeds.
Haines, P., Thornton, J.
core +1 more source
Advanced Engineering Materials, EarlyView.A novel, temperature‐controlled post‐consolidation unit is developed to test its potential to improve the melt impregnation process used to manufacture continuous fiber‐reinforced filaments for additive manufacturing of high‐performance thermoplastics.
Daniel Beermann +2 more
wiley +1 more source
Horn feed having overlapping apertures Patent [PDF]
, 1970 Characteristics of antenna horn feeds consisting of central horn with overlapping peripheral ...
Clark, R. T.
core +1 more source
A novel technique and soldering method to improve performance of transparent polymer antennas [PDF]
, 2010 This article is archived here with permission from IEEE - Copyright @ 2010 IEEEA novel technique and a non-thermal soldering method to improve the performance of AgHT-8 transparent polymer antennas are proposed in this paper.
AbuTarboush, HF +3 more
core +1 more source