Generation of microwave orbital angular momentum states using hemispherical dielectric resonator antenna
Related Research Unit(s)
|Journal / Publication||Applied Physics Letters|
|Publication status||Published - 26 Mar 2018|
|Link to Scopus||https://www.scopus.com/record/display.uri?eid=2-s2.0-85044784879&origin=recordpage|
A hemispherical dielectric resonator antenna (DRA) generating two orbital angular momentum (OAM) states of l = +1 and -1 is studied theoretically and experimentally. The DRA is fed with two orthogonal signals, exciting two degenerate higher-order TE221 modes that generate the two OAM states. It was simulated with full-wave simulation software to verify the design method. A prototype operating in the microwave band (5.8 GHz) was fabricated and measured. Its S-parameters, intensity profile, and phase pattern are simulated, and the results are compared with measurements. Also, its far-field radiation pattern, realized antenna gain, and total antenna efficiency are shown for a complete study of the antenna.
Applied Physics Letters, Vol. 112, No. 13, 131103, 26.03.2018.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal