Double-OAM-mode resistor loaded microstrip antenna with a top dielectric layer

• DOI: 10.1587/elex.15.20180370
• Publication Date: 2018-05-29T22:23:11Z
• Authors: Dang Weiguo; Zhu Yongzhong; Yu Yang; Zuo Kaiwei
• Keywords: Patch antenna; Reflector (photography)

A double-Orbital-Angular-Momentum (OAM)-mode microstrip antenna is designed, simulated, fabricated and measured, which generates OAM with mode number l = 2 3 on 5 GHz by two resistor loaded rings respectively. For existing antennas, structures like circular array, parabolic reflector electromagnetic meta-surface are widely adopted, electrically large hard to be integrated. However, the proposed has a compact size low profile, can integrated in RF circuit as component. To solve problem of gain antenna, parameters optimised top dielectric layer its measured peak reaches 1.5 dB for 1.8 3. The frequency band, near field vortex phase observed orbital angular momentum generated, 4.65–5.25 2, 4.5–5.2 Besides, this multiplex more modes adopting rings.