Results 11 to 20 of about 42,485 (301)

Miniaturized Spoof Plasmonic Antennas with Good Impedance Matching

open access: yesNanomaterials, 2022
The ability of spoof surface plasmon polaritons (SSPPs) to confine electromagnetic fields in a subwavelength regime enables the design of miniaturized antennas. However, the impedance matching scheme for miniaturized spoof plasmonic antennas has not been
Yi Ren   +5 more
doaj   +1 more source

A compact triple‐band dipole array antenna for selected sub 1 GHz, 5G and WiFi access point applications

open access: yesIET Microwaves, Antennas & Propagation, 2021
This work aims at realizing an antenna with a stable radiation pattern for base station applications. A novel high‐efficiency shared‐aperture triple‐band dipole array antenna configuration is proposed in sub‐6 GHz microcell base stations in environments ...
Reza Yazdani   +3 more
doaj   +1 more source

Theory and Analysis of the Loop Antenna and Ω-Shaped Loop-Dipole Antenna

open access: yesIEEE Open Journal of Antennas and Propagation, 2022
This paper first examines and corrects Storer’s theory of circular loop antennas, and then investigates theoretically the proposed $\Omega$ -shaped loop-dipole antenna.
Yulin Fang, Yue Ping Zhang
doaj   +1 more source

Wideband Dipole Antenna

open access: yesBulletin of the South Ural State University. Ser. Computer Technologies, Automatic Control & Radioelectronics, 2016
The dipole antenna providing 13% bandwidth with VSWR lower than 1.15 is considered in the paper. The antenna is characterized by its compactness, mechanical durability, low aerodynamic resistance. The antenna can be executed both in tubular, and in microstrip design. © 2013 EurAAP.
VOYTOVICH N.I., ERSHOV A.V.
openaire   +5 more sources

Dipoles, unintentional antennas and EMC [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2008
Radiated emissions from equipment commonly originate from electronic circuits that act as electric dipoles created by the signal voltage between the signal conductors or as magnetic dipoles formed by the signal current flowing in a loop.
Berend Danker
doaj   +1 more source

Wave-Coupled W-Band LiNbO_3 Mach-Zehnder Modulator [PDF]

open access: yes, 1992
Summary form only given. Mach-Zehnder amplitude modulators have been designed for W-band operation (94 GHz), at a 1.3-μm optical wavelength. These modulators use bow-tie antennas, which are relatively insensitive to DC bias connections made to the ends ...
Bridges, William B.   +2 more
core   +1 more source

Printed Quasi-Yagi Antennas Using Double Dipoles and Stub-Loaded Technique for Multi-Band and Broadband Applications

open access: yesIEEE Access, 2018
Double dipoles on a single-layer substrate are utilized to construct a triple-mode printed quasi-Yagi antenna for the multi-band and broadband antenna applications.
Kai Da Xu   +3 more
doaj   +1 more source

Unveiling Magnetic Dipole Radiation in Phase-Reversal Leaky-Wave Antennas [PDF]

open access: yes, 2013
The radiation principle of travelling-wave type phase-reversal antennas is explained in details, unveiling the presence of magnetic-dipole radiation in addition to well-known electric dipole radiation.
Caloz, Christophe   +2 more
core   +3 more sources

Metasurface Cloaks to Decouple Closely Spaced Printed Dipole Antenna Arrays Fed by a Microstrip-to-Balanced Transmission-Line Transition

open access: yesIEEE Access, 2021
In this work, we present a numerical study of 1D and 2D closely spaced antenna arrays of microstrip dipole antennas covered by a metasurface in order to properly cloak and decouple the antenna arrays operating at neighboring frequencies. We show that the
Doojin Lee, Alexander B. Yakovlev
doaj   +1 more source

Aperture efficiency of chemically etched horns at 93 GHz [PDF]

open access: yes, 1990
The aperture efficiency of monolithic two-dimensional horn imaging arrays has been optimized at 93 GHz. The imaging arrays consist of several silicon wafers into which arrays of pyramidal horns are etched chemically.
Guo, Yong   +4 more
core   +1 more source

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