Global Navigation Satellite Systems (GNSS), including GPS, GLONASS, Galileo, and BeiDou, have become indispensable for a wide range of applications such as navigation, surveying, and timing ...

National Key Laboratory of Laser Spatial Information, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China ...

A team of astronomers have presented the first polarimetric observations of interstellar comet 3I/ATLAS, finding that it has extreme negative polarization. On July 1, 2025, astronomers spotted an ...

Abstract: An autoreconfigurable circular polarization (Auto-RCP) antenna is proposed for enhanced radio frequency identification (RFID) coverage. It consists of a high-efficiency rectifier, ...

Using the MeerKAT radio telescope, an international team of astronomers have discovered a new fast radio burst, which received designation FRB 20240304B. The measured redshift of FRB 20240304B ...

Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan 70101, Taiwan ...

Abstract: The possibility of a cylindrical antenna to creation of required radiation field of circular polarization is studied. There are several models of antenna and the results of investigation ...