Results 111 to 120 of about 964 (142)

Spectral and morphological characteristics of synthetic nanophase iron (oxyhydr)oxides. [PDF]

open access: yesPhys Chem Miner, 2018
Sklute EC   +7 more
europepmc   +1 more source

Design of a Compact Biconical Antenna Loaded With Magnetic Dipoles

IEEE Antennas and Wireless Propagation Letters, 2017
A novel compact ultrawideband biconical antenna with the impedance bandwidth of 200-965 MHz for VSWR less than 2.35 is proposed. Two metal disks and cylinders are loaded around a traditional biconical antenna, which can form two magnetic dipoles. The broadband impedance matching, miniaturization, and omnidirectional radiation patterns are achieved ...
Shuai He, Lei Chang, Zhuang Zhi Chen
openaire   +3 more sources

Design and Modeling of Biconical Dipole for Broad Band Applications

2009 International Conference on Advances in Computing, Control, and Telecommunication Technologies, 2009
A simple configuration that can be used to achieve broad band characteristics is the biconical antenna formed by two cones. In this paper the biconical dipole is modeled for examining its general characteristics. The biconical dipole with cone angle 90 degrees and its open wire structure equivalent are modeled by using WIPL - D program.
Chalasani Subba Rao, Alapati Sudhakar
openaire   +3 more sources

Ultra-Wideband dielectric rod antenna with biconical dipole and reflector

2007 IEEE Antennas and Propagation Society International Symposium, 2007
A directive ultra-wideband (UWB) antenna exhibiting a gain of more than 7 dBi in the whole FCC UWB frequency band is presented. The excitation of the so called dipole mode on the rod is achieved by a biconical dipole. Placing this configuration in some distance to a reflector results in a flat gain curve. Besides an input reflection of -10 dB from 3 up
Marcel D. Blech   +2 more
openaire   +3 more sources

Electrodynamic Characteristics of Biconical Dipole with Complex Distributed Surface Impedance and Asymmetric Excitation

2024 IEEE 29th International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)
Mikhail Nesterenko   +3 more
openaire   +3 more sources

Design of a broadband biconically offset fed thick dipole

2005 IEEE Antennas and Propagation Society International Symposium, 2005
A parametric study of an offset fed thick dipole excited by a biconical feed section is performed in this paper. Modeling results are obtained using Ansoft's High Frequency Structure Simulator (HFSS) and the Numerical Electromagnetics Code (NEC). It is desired that the dipole has a 10:1 bandwidth performance with return loss better than 10 dB and ...
J.L. McDonald   +2 more
openaire   +1 more source

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