On the Design of Conical Antennas for Broadband Impedance Matching Performance
International Journal of Antennas and Propagation, 2017 In the scope of broadband radiators, the biconical antenna, or its monopole conical counterpart, is long known to be a proper choice. One common form of such radiator, the spherically capped conical antenna (SCCA), has closed-form solution to its input ...
Francisco Estêvão Simão Pereira +1 more
doaj +1 more source
Broadband Circularly Polarized Antenna With Non-Planar Reflector
IEEE Access, 2020 In this article, a compact broadband circularly polarized (CP) antenna with non-planar reflector is presented. In this antenna, two fan-shaped cross-dipoles as the primary radiator and a stepped ground as a reflector are proposed to generate a broadband ...
Zhanbiao Yang +6 more
doaj +1 more source
UTHM water quality classification based on sub index [PDF]
, 2020 River or stream at their source is unpolluted, but as water flow downstream, the river or lake is receiving point and non-point pollutant source. Ammoniacal nitrogen (NH3- N) and suspended solids (SS) strongly influences the dynamics of the dissolved ...
Johari, A. H. +2 more
core +1 more source
A Broadband and High Gain Tapered Slot Antenna for W-Band Imaging Array Applications
International Journal of Antennas and Propagation, 2014 A broadband and high gain tapered slot antenna (TSA) by utilizing a broadband microstrip- (MS-) to-coplanar stripline (CPS) balun has been developed for millimeter-wave imaging systems and sensors.
Dong Sik Woo +2 more
doaj +1 more source
Broadband Multilayered Array Antenna with EBG Reflector
International Journal of Antennas and Propagation, 2013 Most broadband microstrip antennae are implemented in the form of slot structure or laminate structure. The impedance bandwidth is broadened, but meanwhile, the sidelobe of the directivity pattern and backlobe level are enlarged. A broadband stacked slot
P. Chen +3 more
doaj +1 more source
Design of Cavity-Backed Bow-Tie Antenna with Matching Layer for Human Body Application
Sensors, 2019 This paper presents the broadband antenna for the microwave radiometric sensing of internal body temperature. For broadband operation, the bow-tie antenna was designed and backed with a cylindrical cavity, which decreased environmental electromagnetic ...
Jinho Jeong, Kihoon Park, Changmin Lee
doaj +1 more source
A broadband horizontally polarised omnidirectional antenna with stable radiation patterns
The Journal of Engineering, 2019 A broadband horizontally polarised omnidirectional antenna (HPOA) with stable radiation patterns is proposed. The antenna is composed of two orthogonal broadband HPOA units fed by a wideband power divider.
Zhou Lei, Cui Mantang, Lu Yangyi
doaj +1 more source
Improving the system capacity of broadband services using multiple high-altitude platforms [PDF]
, 2005 A method of significantly improving the capacity of high-altitude platform (HAP) communications networks operating in the millimeter-wave bands is presented. It is shown how constellations of HAPs can share a common frequency allocation by exploiting the
Chen, G.H. +4 more
core +1 more source
Modeling of wide-band MIMO radio channels based on NLoS indoor measurements [PDF]
, 2004 Link to published version (if available)
Björn Ottersten +6 more
core +3 more sources
Hybrid Satellite-Terrestrial Communication Networks for the Maritime Internet of Things: Key Technologies, Opportunities, and Challenges [PDF]
, 2021 With the rapid development of marine activities, there has been an increasing number of maritime mobile terminals, as well as a growing demand for high-speed and ultra-reliable maritime communications to keep them connected.
Chen, Yunfei +5 more
core +2 more sources