Results 41 to 50 of about 55,869 (299)
Broadband dual-plate monopole antennas
Twelfth International Conference on Antennas and Propagation (ICAP 2003), 2003 In this paper, dual-plate monopole antennas without and with a shorting pin and/or edge trimming have been studied. The experimental results of return loss have been presented, and compared with single plate monopole antennas. It has been shown that the lower end matching frequency can be lowered by 17% by using dual plates.
Wu, Z., Sevret, P., Ammann, Max
openaire +3 more sources
International Journal of Antennas and PropagationIn this paper, we propose an improved adaptive frequency sweep strategy based on the asymptotic waveform evaluation (AWE) technique for simulating broadband antennas across a wide frequency range.
Zhijun Cai +7 more
doaj +1 more source
A low‐profile planar end‐fire broadband antenna with wide beamwidth
IET Microwaves, Antennas & Propagation, 2023 A low‐profile planar end‐fire broadband antenna with wide beamwidth is presented. The proposed antenna consists of a grounded coplanar waveguide (GCPW), an antipodal dipole, and a pair of directors.
Hui Xue +4 more
doaj +1 more source
Development Toward a Ground-Based Interferometric Phased Array for Radio Detection of High Energy Neutrinos [PDF]
, 2017 The in-ice radio interferometric phased array technique for detection of high energy neutrinos looks for Askaryan emission from neutrinos interacting in large volumes of glacial ice, and is being developed as a way to achieve a low energy threshold and a
Avva, J. +18 more
core +2 more sources
Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma
Advanced Engineering Materials, EarlyView.The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie +4 more
wiley +1 more source
Broadband THz Corrugated Bull’s Eye Antennas
IEEE Access, 2021 A 3-dB gain and input impedance bandwidth enhancement technique for THz periodically corrugated metallic antennas, also known as Bull’s Eye antennas, is presented. A novel design that exploits the depth qualities of the corrugations is introduced,
Despoina Kampouridou +1 more
doaj +1 more source
Assessment of radio frequency exposures in schools, homes, and public places in Belgium [PDF]
, 2014 Characterization of exposure from emerging radio frequency (RF) technologies in areas where children are present is important. Exposure to RF electromagnetic fields (EMF) was assessed in three "sensitive" microenvironments; namely, schools, homes, and ...
Constandt, Kim +5 more
core +1 more source
Advanced Functional Materials, EarlyView.Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong +16 more
wiley +1 more source
Properties and technical applications of antenna arrays focused on a broadband signal
Физика волновых процессов и радиотехнические системыBackground. Currently, antenna arrays focused in the near-radiated field zone are being actively studied. The basic properties and characteristics of focused antenna systems using narrowband signals are known.
Denis A. Vedenkin, Yuri E. Sedelnikov
doaj +1 more source
Broadband Circularly Polarized Filtering Antennas
IEEE Access, 2018 This paper consists of two parts. The first part presents a review of the recent development in broadband circularly polarized filtering antennas. The second part presents a novel design of broadband integrated filtering antenna based on eighth-mode SIW (
Yazhou Dong +10 more
doaj +1 more source