LONDON: Researchers at the University of Cambridge say they have unraveled one of the mysteries of electromagnetism and add their work could allow the creation of antennas small enough to be integrated into a chip. “Antennas are one of the limiting factors when trying to make smaller and smaller systems, since below a certain size, the losses become too great,” said Professor Gehan Amaratunga of Cambridge’s Department of Engineering, who led the research. The team has proposed that electromagnetic waves are not only generated from the acceleration of electrons, but also from a phenomenon known as symmetry breaking. In addition to the implications for wireless communications, the discovery could help identify the points where theories of classical electromagnetism and quantum mechanics overlap. According to the researchers, certain physical variables associated with radiation of energy are not well understood. While Maxwell determined that electromagnetic radiation is generated by accelerating electrons, this theory is said to become problematic when dealing with radio wave emission from a dielectric solid – already used for antennas in mobile phones, for example.
Tesla driverless system to use updated radar technology
WASHINGTON: Electric carmaker Tesla announced Sunday it was upgrading its Autopilot software to use more advanced radar technology. In a...
