Results 241 to 250 of about 286,691 (306)
Advancing Three-Photon-Excited Rydberg RF Sensing: Fluorescence Readout for Wide-Dynamic-Range Characterization and Spatial Resolution Beyond Transmission. [PDF]
Zhang J +9 more
europepmc +1 more source
Modeling Radiofrequency Electromagnetic Field Wearable Distributed (Multi-Location) Measurements System for Evaluating Electromagnetic Hazards in the Work Environment. [PDF]
Gryz K, Karpowicz J, Zradziński P.
europepmc +1 more source
Ultrabroadband, achromatic, and non-diffracting perfect optical vortex generation via radial momentum control in dielectric metasurfaces. [PDF]
Xia T +8 more
europepmc +1 more source
Spectrum environment map dataset based on ray-tracer under 3D dynamic built-up scenarios. [PDF]
Wang X +7 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
AIP Conference Proceedings, 2007
Electromagnetic radio waves traveling within earth’s atmosphere are called terrestrial waves, and communications between two or more points on earth is called terrestrial radio communications. Terrestrial waves are influenced by the atmosphere and earth itself.
openaire +1 more source
Electromagnetic radio waves traveling within earth’s atmosphere are called terrestrial waves, and communications between two or more points on earth is called terrestrial radio communications. Terrestrial waves are influenced by the atmosphere and earth itself.
openaire +1 more source
Radio Propagation Fundamentals*
Bell System Technical Journal, 1957The engineering of radio systems requires an estimate of the power loss between the transmitter and the receiver. Such estimates are affected by many factors, including reflections, fading, refraction in the atmosphere, and diffraction over the earth's surface.
openaire +1 more source
Physics Today, 1948
Special airborne measuring equipment, including four high-frequency radio transmitters installed in a PBY-5A aircraft, is being used by the atmospheric studies division of the U.S. Navy Electronics Laboratory, San Diego, California, in over-water studies of ultra-high-frequency radio waves.
openaire +1 more source
Special airborne measuring equipment, including four high-frequency radio transmitters installed in a PBY-5A aircraft, is being used by the atmospheric studies division of the U.S. Navy Electronics Laboratory, San Diego, California, in over-water studies of ultra-high-frequency radio waves.
openaire +1 more source
2009
"This is an IEEE classic reissue of the book published by John Wiley & Sons in 1974.This definitive text and reference covers all aspects of microwave mobile systems design. Encompassing ten years of advanced research in the field, it reviews basic microwave theory, explains how cellular systems work and presents useful techniques for effective systems
openaire +1 more source
"This is an IEEE classic reissue of the book published by John Wiley & Sons in 1974.This definitive text and reference covers all aspects of microwave mobile systems design. Encompassing ten years of advanced research in the field, it reviews basic microwave theory, explains how cellular systems work and presents useful techniques for effective systems
openaire +1 more source
Transequatorial Radio Propagation Monitoring
2005 5th International Conference on Information Communications & Signal Processing, 2006According to error of satellite signals traveling through the ionosphere, it can be impractical and receiver performance can be severely degraded. At times of high sunspot number, transequatorial propagation on ionospheric scintillations is most likely to occur during solar maximum, particularly affecting equatorial and auroral regions.
P. Kenpankho, P. Suwanjan
openaire +1 more source

