Results 61 to 70 of about 30,504 (243)

Compact printed high rejection triple band-notch UWB antenna with multiple wireless applications

Engineering Science and Technology, an International Journal, 2016
In this paper, small printed urn-shape triple notch ultra-wideband (UWB) monopole antenna with diverse wireless applications is presented. Notch bands include WiMAX (IEEE802.16 3.30–3.80 GHz), WLAN IEEE802.11a/h/j/n (5.15–5.35 GHz, 5.25–5.35 GHz, 5.47–5 ...
Manish Sharma, Y.K. Awasthi, Himanshu Singh, Raj Kumar, Sarita Kumari   +4 more
doaj   +1 more source

Redundant RF system for space application [PDF]

, 1979
An S-band radio frequency subsystem is described including two transmitters, two receivers and two antennas. The subsystem is capable of connecting either transmitter or receiver to either antenna while permitting simultaneous operation of a transmitter ...
Rook, C. W.
core   +1 more source

Optimized Multiband Circularly Polarized Patch Antenna With Coupled Sub‐Patches for Wireless Applications

Microwave and Optical Technology Letters, Volume 67, Issue 10, October 2025.
ABSTRACT In this paper, a high gain multiband patch antenna is designed and analyzed for use in wireless applications. Coupled sub‐patches are integrated around a central hexagonal patch to extend the operating frequency and improve gain across multiple frequency bands.
Mahdi Abdelkarim, Majdi Bahrouni, Ali Gharsallah   +2 more
wiley   +1 more source

Antena Mikrostrip Circular Array Dual Frekuensi

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2012
Paper Dalam aplikasi GPS (Global Positioning System) dan GSM (Global System for Mobile communication) dalam sebuah fitur layanan telepon seluler, diperlukan antena tunggal yang mampu melayani 2 keperluan aplikasi GPS yaitu frekwensi 1575 MHz dan ...
Dwi Fadila Kurniawan, Erfan Achmad Dahlan, Ariestya Yoga Pratama   +2 more
doaj   +1 more source

Design of Millimeter-wave Detector for Gyrotron Power Monitoring

, 2019
The real-time power monitoring of gyrotron is one of the key issues in the operation of electron cyclotron resonance heating system. The detector can be used for real-time power monitoring.
Liu, Fukun, Wang, Xiaojie, Xu, Handong, Xu, Weiye   +3 more
core   +1 more source

A prototype station for ARIANNA: a detector for cosmic neutrinos [PDF]

, 2010
The Antarctic Ross Iceshelf Antenna Neutrino Array (ARIANNA) is a proposed detector for ultra-high energy astrophysical neutrinos. It will detect coherent radio Cherenkov emission from the particle showers produced by neutrinos with energies above about ...
Abraham, Ackermann, Allison, Askarian, Barwick, Besson, Dowdeswell, Gorham, Gorham, Greisen, Halzen, Horgan, James, Jordan Hanson, Kamlesh Dookayka, Kovacs, Kravchenko, Lehtinen, Lisa Gerhardt, MacAyeal, Ryan Nichol, Scholten, Spencer Klein, Steve Barwick, Thorsten Stezelberger, Vandenbroucke, Varner, Varner, Zatepin   +28 more
core   +2 more sources

Multi‐Dimensional Multiplexed Metasurface for Multifunctional Near‐Field Modulation by Physics‐Driven Intelligent Design

Advanced Science, Volume 12, Issue 27, July 17, 2025.
The expansive design space of advanced metasurfaces, particularly those with multiple degrees of freedom (MDOF), renders traditional design methods less effective. A physics‐driven intelligent design is proposed for MDOF metasurfaces, which integrates physical knowledge into neural networks, enhancing interpretability and computational efficiency. This
Jian Lin Su, Zi Xuan Cai, Yiqian Mao, Long Chen, Xin Yi Yu, Zhi Cai Yu, Qian Ma, Si Qi Huang, Jianan Zhang, Jian Wei You, Tie Jun Cui   +10 more
wiley   +1 more source

Remote sensing reveals inter‐ and intraspecific variation in riparian cottonwood (Populus spp) response to drought

Journal of Ecology, Volume 113, Issue 7, Page 1760-1779, July 2025.
Leaf‐level spectroscopy and canopy‐level UAV thermal data captured inter‐ and intraspecific responses to water stress in cottonwoods, which are widely distributed in arid environments. This study demonstrates the potential of remote sensing to monitor and predict the impacts of drought on scales varying from leaves to landscapes. Abstract Understanding
Megan M. Seeley, Benjamin C. Wiebe, Catherine A. Gehring, Kevin R. Hultine, Bradley C. Posch, Hillary F. Cooper, Elena A. Schaefer, Beatrice M. Bock, Andrew J. Abraham, Madeline E. Moran, Arthur Keith, Gerard J. Allan, Maya Scull, Thomas G. Whitham, Roberta M. Martin, Gregory P. Asner, Christopher E. Doughty   +16 more
wiley   +1 more source

Multidimensional analysis of 5G antenna with coaxial cables and circular slots using computational resources and polynomial analysis [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
The study proposes a multidimensional mathematical modeling of antennas using coaxial cables for 5G, with emphasis on the relationship between cable length, frequency, and VSWR. By employing a final configuration incorporating five circular slots of 6 mm
Filipe C. de Andrade, Giselle Francine B. Muniz, Ana Karine D. C. Brandão, Kenedy Marconi G. dos Santos, Polyane A. Santos, Tagleorge M. Silveira   +5 more
doaj   +1 more source

VSWR value measurement analysis using Direct Digital Synthesizer [PDF]

JAICT, 2018
<p class="AbstractL-MAG"><span lang="EN-US">SWR Analyzer is an electronic device radio is useful to know the value of VSWR and antenna impedance without the use of radio tranciever. In this final use Direct Digital Synthesizer (DDS) to generatewaveforms analog digitally. DDS signal generation programmable via Arduino nano.
openaire   +1 more source