The Planck-ATCA Co-eval Observations (PACO) project: analysis of radio source properties between 5 and 217 GHz [PDF]
, 2015 The Planck-ATCA Co-eval Observations (PACO) project has yielded observations of 464 sources with the Australia Telescope Compact Array (ATCA) between 4.5 and 40 GHz.
Bonaldi, Anna +5 more
core +2 more sources
Multifrequency broadband polarized horn antenna [PDF]
, 1981 A corrugated conical horn antenna is simultaneously fed a multiplicity of signals, two for each of five frequencies, with each of a pair of signals fed in each of two orthogonal planes for excitation of a desired spherical hybrid mode.
Green, K. A.
core +1 more source
Combination of time and spatial filtering to improve echo reduction in antenna measurements [PDF]
, 2015 Different research groups have been working during the last years in different echo reduction techniques applied to antenna measurements, based on spatial, modal or time filtering.
Foged, Lars Jacob +5 more
core +1 more source
Spatial Identification Methods and Systems for RFID Tags [PDF]
, 2013 Disertační práce je zaměřena na metody a systémy pro měření vzdálenosti a lokalizaci RFID tagů pracujících v pásmu UHF. Úvod je věnován popisu současného stavu vědeckého poznání v oblasti RFID prostorové identifikace a stručnému shrnutí problematiky ...
Povalač, Aleš
core
A Frequency-Selective Reconfigurable Antenna for Wireless Applications in the S and C Bands. [PDF]
Sensors (Basel), 2023 Sakkas A +7 more
europepmc +1 more source
Single-, Dual- and Triple-band Frequency Reconfigurable Antenna [PDF]
, 2014 The paper presents a frequency reconfigurable slot dipole antenna. The antenna is capable of being switched between single-band, dual-band or triple-band operation.
Hamid, M. R. +5 more
core +1 more source
Genetic Algorithm Optimization of a High-Directivity Microstrip Patch Antenna Having a Rectangular Profile [PDF]
, 2013 A single high-directivity microstrip patch antenna (MPA) having a rectangular profile, which can substitute a linear array is proposed. It is designed by using genetic algorithms with the advantage of not requiring a feeding network.
Anguera, J. +2 more
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Quasi-TEM modes in rectangular waveguides: a study based on the properties of PMC and hard surfaces
, 2008 Hard surfaces or magnetic surfaces can be used to propagate quasi-TEM modes inside closed waveguides. The interesting feature of these modes is an almost uniform field distribution inside the waveguide. But the mechanisms governing how these surfaces act,
B. Gralak +4 more
core +3 more sources
Tapered Yagi-Uda Nanoantennas for Broadband Unidirectional Emission
, 2012 We demonstrate experimentally the operation of tapered Yagi-Uda nanoantennas for broadband unidirectional emission enhancement. The measured transmittance spectra show that, in comparison to untapered reference structures, the tapered nanoantennas ...
Biagioni +11 more
core +1 more source
Miniaturized Circular-Waveguide Probe Antennas Using Metamaterial Liners
, 2014 This work presents the radiation performance of open-ended circular-waveguide probe antennas that have been miniaturized by the introduction of thin metamaterial liners.
Iyer, Ashwin K., Pollock, Justin G.
core +1 more source