Generation of OAM vortex electromagnetic wave by using microstrip antenna array - Details

author：

Huang, Huanhuan (Huang, Huanhuan.) ^[1] | Yu, Yanzhong (Yu, Yanzhong.) ^[2] | Ren, Yinjuan (Ren, Yinjuan.) ^[3]

Indexed by：

Abstract：

The　OAM　vortex　electromagnetic　wave　are　generated　by　using　the　particular　circular　phased　microstrip　antenna　array,　which　can　provide　more　efficient　and　reliable　transmission　of　information.　Based　on　the　theoretical　analysis　of　OAM,　the　proposed　phased　microstrip　antenna　array　can　generate　vortex　electromagnetic　waves　carrying　OAM　at　a　center　frequency　of　6　GHz.　The　excitation　is　carried　out　by　using　the　phase　difference　between　adjacent　antenna　elements　as　a　constant　value,　and　a　circular　antenna　array　with　a　double-layer　circular　microstrip　antenna　as　the　antenna　element　is　designed.　By　controlling　the　phase　difference　between　the　antenna　elements,　the　orbital　angular　momentum　with　OAM　mode　numbers　of　0,　1,　2,　3　are　obtained.　It　is　known　from　the　results　that　by　designing　antenna　array　with　different　structures　and　changing　the　phase　difference　between　the　antenna　elements,　vortex　electromagnetic　waves　carrying　good　orbital　angular　momentum　can　be　obtained.　©　2021　IEEE.

Keyword：

Angular momentum Antenna arrays Circular polarization Circular waveguides Electromagnetic waves Microstrip antennas Microwave antennas Vortex flow

Community：

[ 1 ] [Huang, Huanhuan]Fuzhou University, School of Advanced Manufacturing, Jinjiang, China
[ 2 ] [Huang, Huanhuan]Quanzhou Normal University, College of Physics Information Engineering, Quanzhou, China
[ 3 ] [Yu, Yanzhong]Quanzhou Normal University, College of Physics Information Engineering, Quanzhou, China
[ 4 ] [Ren, Yinjuan]Quanzhou Normal University, College of Physics Information Engineering, Quanzhou, China