Results 11 to 20 of about 250,786 (296)
Broadband Antennas and Antenna Arrays [PDF]
International Journal of Antennas and Propagation, 2014 Abstract is not available in fulltext.
Wenbin Dou +3 more
doaj +2 more sources
BROADBAND ANTENNAS AND ANTENNA ARRAYS WITH REACTIVE LOADS [PDF]
Радиофизика и электроника, 2018 Subject and Purpose. The results of studies of actual methods for expanding the frequency range of vibrational curved whip and loop antennas, and antenna arrays based on them are presented.
V. V. Ovsyanikov, E. R. Beznosova
doaj +2 more sources
A compact broadband antenna for ultra high frequency and L band on 5G new radio base stations
IET Microwaves, Antennas & Propagation, 2023 A simple method is proposed for the realisation of compact dual‐polarised antennas. The aperture area of a dual‐polarised dipole antenna can be reduced by half by surrounding the antenna with a square loop.
Yuehui Cui +3 more
doaj +1 more source
Multimode and Multiband Microstrip Antennas [PDF]
, 2007 This thesis describes original work on the broadband and multiband matching of microstrip patch antennas. Microstrip patch antennas suffer from many constraints on their performance. One major restriction is their narrow impedance bandwidth.
Abunjaileh, Alaa Ibrahim
core +3 more sources
Dual‐loop antennas with an expanded axial ratio bandwidth
Electronics Letters, 2023 The authors propose a novel dual‐wire antenna with a balanced feed to increase a 3‐dB axial ratio bandwidth. The antenna comprises loop elements with quasi two‐sources, and the effects of the element distance on the axial ratio bandwidth are revealed ...
Kazuhide Hirose +2 more
doaj +1 more source
Micromachines, 2022 With the rapid changes in wireless communication systems, indoor wireless communication (IWC) technology has undergone tremendous development. Antennas are crucial components of IWC systems that transmit and receive signals within indoor environments ...
Ahmed Jamal Abdullah Al-Gburi +7 more
doaj +1 more source
Enabling rural broadband via TV "white space" [PDF]
, 2012 The use of multiple frequency bands within a wireless network allows the advantages of each band to be exploited. In this paper we discuss how HopScotch, a rural wireless broadband access test bed running in the Scottish Highlands and Islands, uses both ...
Weiss, Stephan +4 more
core +3 more sources
Comparison of precoding methods for broadband MIMO systems [PDF]
, 2009 In this paper we investigate non-linear precoding solutions for the problem of broadband multiple-input multipleoutput (MIMO) systems. Based on a broadband singular value decomposition (BSVD) we can decouple a broadband MIMO channel into independent ...
Alhanafy, W.E.A.E., Weiss, S.
core +3 more sources
Radio-transparent dipole antenna based on a metasurface cloak
Nature Communications, 2022 The authors demonstrate broadband and efficient radio-transparent antennas based on cloaking technology. Their features are well suited for modern communication systems, as closely spaced antennas need to be integrated with minimal interference.
Jason Soric +3 more
doaj +1 more source
Antenna Arrays Focused on Broadband Signals
Journal of Telecommunications and Information Technology, 2016 Broadband and ultra-wideband signals are increasingly used in modern radio systems. Traditional performance of evaluation antennas operating with narrowband signals are not always adequately reflect the characteristics of broadband antennas, at least in
Denis Andreevich Vedenkin +2 more
doaj +1 more source