Results 11 to 20 of about 19,811 (315)
Radio/Antenna Mounting System for Wireless Networking under Row-Crop Agriculture Conditions [PDF]
Journal of Sensor and Actuator Networks, 2015 Interest in and deployment of wireless monitoring systems is increasing in many diverse environments, including row-crop agricultural fields. While many studies have been undertaken to evaluate various aspects of wireless monitoring and networking, such ...
Daniel K. Fisher
doaj +2 more sources
Frequency selective reconfigurable microstrip antenna for cognitive radio applications
Advanced Electromagnetics, 2022 For the efficient utilization of electromagnetic radio spectrum cognitive radio communication system is employed, which deals with the spectrum scarcity. An efficient antenna is essential for the appropriate selection of the available frequencies.
D. S. Aldar
doaj +1 more source
IEEE Access, 2020 In state-of-the-art mobile devices (MDs), non-radio contexts (i.e., non-real-time data) provided by various sensors have been excluded in determining the modem configuration because of the problems in applying them in real-time modem operations.
Heungseop Ahn +4 more
doaj +1 more source
A novel reverse design method of tag antenna based on image analysis
Journal of Algorithms & Computational Technology, 2020 Since the working efficiency of the entire radio frequency identification system depends on the performance of the radio frequency identification tag antenna, the research and design of the tag antenna have received attention, especially for radio ...
Zhenlu Liu +4 more
doaj +1 more source
A high isolated, high gain millimeter wave quad-port MIMO antenna array for wideband 5G new radio application. [PDF]
Sci RepTiwari P +6 more
europepmc +3 more sources
CREATION AND APPROBATION OF A LOW-FREQUENCY RADIO ASTRONOMY ANTENNA FOR STUDIES OF OBJECTS OF THE UNIVERSE FROM THE MOON'S FARSIDE [PDF]
Radio Physics and Radio Astronomy, 2021 Purpose: Theoretical and experimental studies of the active antenna – an element of the low-frequency radio telescope antenna array for the future observatory on the farside of the Moon.
I. N. Bubnov +5 more
doaj +1 more source
Impact of Ship Motions on Maritime Radio Links
International Journal of Antennas and Propagation, 2012 The improvement of maritime radio links often requires an increase of emitted power or receiver sensitivity. Another way is to replace the poor antenna gains of traditional surface ship whips by novel antenna structures with directive properties. However,
William Hubert +3 more
doaj +1 more source
Nature Communications, 2020 Designing efficient radio frequency antenna for wireless stretchable multifunction electronics remains a challenge. Here, the authors present epidermal radio frequency antenna based on silver nanofibers network for wireless power transfer and information
Yufei Zhang +10 more
doaj +1 more source
Antena Mikrostrip Array 8x2 Elemen untuk Aplikasi Radio Gelombang Mikro
Jurnal Elkomika, 2021 ABSTRAK Peningkatan gain pada antena mikrostrip polarisasi melingkar menggunakan metode array 8x2 element diusulkan dalam penelitian ini. Antena yang diusulkan dirancang untuk bekerja pada rentang frekuensi 10700 – 11700 MHz untuk sistem komunikasi ...
SYAH ALAM +3 more
doaj +1 more source
ON THE “TREE” VERTICAL ELECTRIC ELF ANTENNA [PDF]
Радиофизика и электроника, 2016 Development of new antennas for reception of radio signals was and remains an actual problem. We model and estimate the efficiency of unusual design of the vertical electric antenna detecting ELF (3…3 000 Hz) radio signals.
E. A. Velichko, A. P. Nickolaenko
doaj +1 more source