2016/04/11 by Tiezhu Yuan, Yongqiang Cheng, Hongqiang Wang +2 · 28 citations
Engineering · Physics and Astronomy · #Acoustics #Advanced Antenna and Metasurface Technologies #Angular momentum #Antenna (radio) #Antenna array #Azimuth #Circular buffer #Computer science #Elevation (ballistics) #Elevation angle #Mode (computer interface) #Optics #Orbital Angular Momentum in Optics #Physics #Radar #Radio Astronomy Observations and Technology #Telecommunications
paper · doi:10.1049/el.2016.0269
published in Electronics Letters 52(11), 896-898 (Institution of Engineering and Technology)
openalex publication_date 2016/04/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/23
A modified uniform circular array is analysed and configured to generate radio waves carrying orbital angular momentum (OAM). The relationship between OAM mode and array parameters is derived mathematically. Results show that the produced OAM mode can be altered arbitrarily by changing the exciting frequency when the array is fixed. Moreover, the OAM mode is associated with elevation angle, offering the potential of elevation resolution for radar imaging.