Results 111 to 120 of about 25,027 (314)
Design and Test of Beamforming Networks for a Galileo Antenna Array
, 2006 The aim of the work is the design of a series of passive feeding networks that will steer the main beam of a Galileo antenna into different fixed directions to evaluate the performance of the array under such ...
Arango Selga, Arturo
core
Super-elliptical waveguide technology for reactively loaded antenna arrays
, 2016 The aim of this paper is to introduce a novel super-elliptical waveguide technology for the design of reactively loaded antenna arrays. The benefits arising from the application of the proposed waveguide geometry based on Lame' equation are described and
Caratelli, D.; id_orcid +13 more
core +1 more source
Effect of antenna element properties and array orientation on performance of MIMO systems [PDF]
, 2004 This paper presents a MIMO throughput based assessment of three candidate antenna arrays, each of which was constructed from a different type of antenna element. A model of the MIMO channel resolved in orthogonal polarization planes was employed to apply
Rogers, PR +11 more
core +1 more source
Advanced Functional Materials, EarlyView.A printed superparamagnetic nanoparticle‐based flux guide enables the realization of a hysteresis‐free three‐axis magnetic sensor. This innovative architecture efficiently redirects out‐of‐plane fields to planar sensing elements, facilitating simultaneous vector detection without complex reset protocols.
Changyeop Jeon +10 more
wiley +1 more source
A Multi Antenna Receiver for Galileo SoL Applications
, 2008 One of the main features of the Galileo Satellite Navigation System is integrity. To ensure a reliable and robust navigation for Safety of Life applications, like CAT III aircraft landings, new receiver technologies are indispensable.
Schroth, Arno +5 more
core
Journal of Communications Software and Systems, 2019 In this paper an approach of obtaining optimal planar antenna arrays consisting of omnidirectional sensors is proposed. The novelty of the proposed approach is to apply an exact expression of the Cramer-Rao lower bound for an arbitrary planar antenna ...
Ilia Peshkov, Yuri Nechaev
doaj
OAM waves with fewer redundant OAM modes generated by two circularly polarized antenna arrays
ICT ExpressTwo circularly polarized antenna arrays, which reduce two redundant OAM modes, are proposed in this paper. One antenna array is composed of 8 right-handed circularly polarized (RHCP) antennas and radiates OAM mode l in x component, OAM mode l in y ...
Dandan Liu +4 more
doaj +1 more source
Location Optimization for Square Array Antennas Using Differential Evolution Algorithm
International Journal of Antennas and Propagation, 2016 In recent works thinned arrays giving minimum peak sidelobe levels for planar square antenna arrays are obtained using Hadamard difference sets. In the current work thinned array configurations giving lower peak sidelobe levels than those given in the ...
Erkan Afacan
doaj +1 more source
Advanced Functional Materials, EarlyView.A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan +10 more
wiley +1 more source
Submicron Metasurface Reconfigured Multiband Smart Windows
Advanced Functional Materials, EarlyView.This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang +8 more
wiley +1 more source