TY - GEN
T1 - Design of a Pillbox Reflector based Millimeter-Wave Multi-beam OAM antenna
AU - Cao, Yuanxi
AU - Yan, Sen
AU - Li, Jianxing
AU - Chen, Juan
N1 - Publisher Copyright:
© 2023 International Union of Radio Science.
PY - 2023
Y1 - 2023
N2 - A multi-beam orbital angular momentum (OAM) antenna is proposed in this paper. The antenna is realized by the combination of a pillbox antenna beamforming network (BFN), dielectric phase delay elements (DPDEs), and a slotted waveguide antenna (SWA) array. The required phase distribution of the OAM beam is provided by the SWA array and the DPDEs. The DPDEs are stacked on the radiation slots of the SWA array to obtain the phase variation (PA) from 0 to 180°, and the position of the radiation slots on the waveguide can achieve another 0 or 180° PA, thus realizing 360° PA. The pillbox BFN is used to generate the phase gradients to the SWA array, steering the main beam direction of the OAM beams. To evaluate the performance of the antenna design, an antenna prototype is simulated at the center frequency of 24.0 GHz with +1 OAM mode. According to the results of the simulation, the antenna is able to produce 5 OAM beams with a±20° beam scanning range. The purity of the OAM mode is over 0.66 for all the multi beams.
AB - A multi-beam orbital angular momentum (OAM) antenna is proposed in this paper. The antenna is realized by the combination of a pillbox antenna beamforming network (BFN), dielectric phase delay elements (DPDEs), and a slotted waveguide antenna (SWA) array. The required phase distribution of the OAM beam is provided by the SWA array and the DPDEs. The DPDEs are stacked on the radiation slots of the SWA array to obtain the phase variation (PA) from 0 to 180°, and the position of the radiation slots on the waveguide can achieve another 0 or 180° PA, thus realizing 360° PA. The pillbox BFN is used to generate the phase gradients to the SWA array, steering the main beam direction of the OAM beams. To evaluate the performance of the antenna design, an antenna prototype is simulated at the center frequency of 24.0 GHz with +1 OAM mode. According to the results of the simulation, the antenna is able to produce 5 OAM beams with a±20° beam scanning range. The purity of the OAM mode is over 0.66 for all the multi beams.
UR - https://www.scopus.com/pages/publications/85175183205
U2 - 10.23919/URSIGASS57860.2023.10265481
DO - 10.23919/URSIGASS57860.2023.10265481
M3 - 会议稿件
AN - SCOPUS:85175183205
T3 - 2023 35th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2023
BT - 2023 35th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 35th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2023
Y2 - 19 August 2023 through 26 August 2023
ER -