Results 31 to 40 of about 68,865 (333)
Radiation pattern of two identical emitters driven by a Laguerre-Gaussian beam: An atom nanoantenna [PDF]
, 1999 We study the directional properties of a radiation field emitted by a geometrically small system composed of two identical two-level emitters located at short distances and driven by an optical vortex beam, a Laguerre-Gaussian beam which possesses a ...
Lembessis, Vassilis E. +4 more
core +4 more sources
Journal of Mechatronics, Electrical Power, and Vehicular Technology, 2018 In conducting a disaster monitoring mission, an unmanned aerial vehicle (UAV) has to travel a long distance to cover the region that is hited by a disaster.
Gesang Nugroho, Dicky Dectaviansyah
doaj +1 more source
Miniature transparent UWB antenna with tunable notch for green wireless applications [PDF]
, 2011 Copyright @ 2011 IEEEA miniature transparent UWB antenna with tunable notch that can be incorporated with a solar panel for harnessing solar energy has been proposed and presented.
AbuTarboush, HF +5 more
core +1 more source
Understanding Link Dynamics in Wireless Sensor Networks with Dynamically Steerable Directional Antennas [PDF]
, 2013 . By radiating the power in the direction of choice, electronicallyswitched directional (ESD) antennas can reduce network contention and avoid packet loss.
C. Noda +9 more
core +2 more sources
A WLAN Dual-Polarized Beam-Reconfigurable Antenna
IEEE Open Journal of Antennas and PropagationA novel wireless local area network (WLAN) antenna with dual-polarized and beam-reconfigurable ability is developed for WLAN 2.4 GHz band application.
Saiju Li +4 more
doaj +1 more source
Proposal of a Planar Directional UWB Antenna for Any Desired Operational Bandwidth
International Journal of Antennas and Propagation, 2014 A novel planar directional UWB antenna is proposed. The antenna design evolves from an oblique elliptic cone antenna by applying the planar-solid correspondence to two axes.
Marco A. Peyrot-Solís +2 more
doaj +1 more source
Directive Ultra-Wideband Planar Antennas
, 2010 The logical thread of this chapter can be summarized as follows. Highly directive, planar UWB antennas are gaining more and more attention, as required in many novel and important applications. As the modern antenna design deals with low profile structures, new ways of increasing the directivity of a candidate radiator can be explored.
CAPOBIANCO AD +7 more
openaire +6 more sources
Antennas with controlled directivity patterns [PDF]
RADIOFIZIKA I ELEKTRONIKA, 2017 The current methods and devices for correcting and controlling the directivity patterns of metal whip and loop reconfigurable antennas, as well as plasma and electron beam reconfigurable antennas are investigated. It is proposed to solve the problem of effective correction and control of antenna directivity patterns by changing their design and ...
openaire +1 more source
Novel antenna configurations for wireless broadband vehicular communications [PDF]
, 2010 In this paper, mobile WiMAX trials are analysed to investigate the vehicular down-link performance for a number of on-car antenna configurations. The directionality and optimum polarization of the vehicular antennas are shown to improve both the range ...
Halls, DE, Nix, AR, Zaggoulos, G
core +3 more sources
Integration of Directional Antennas in an RSS Fingerprinting-Based Indoor Localization System
Sensors, 2015 In this paper, the integration of directional antennas in a room-level received signal strength (RSS) fingerprinting-based indoor localization system (ILS) is studied.
Raúl Guzmán-Quirós +3 more
doaj +1 more source