TY - JOUR
T1 - Wide-Beam Dielectric Resonator Antennas Based on the Fusion of Higher-Order Modes
AU - Boyuan, Ma
AU - Pan, Jin
AU - Huang, Shaode
AU - Yang, Deqiang
AU - Guo, Yongxin
PY - 2021/12
Y1 - 2021/12
N2 - Geometry-induced resonant modes with intrinsic broad beam coverage are synthesized within step-shaped dielectric resonator antennas (DRAs). Following the idea of mode fusion, a synthesized mode inherits and combines the modal features from several conventional ones of regular DRAs. Superior flexibility and design freedom in beam shaping are thus obtained, leading to a 3 dB beamwidth exceeding 200° in both main planes. To form such a broad-beam mode, three regular higher-order modes from rectangular DRAs are chosen and merged. Their modal radiation patterns have fine complementation, meanwhile, they are readily excited by a shared feed. To further demonstrate the mechanism of mode fusion, the modal field distribution of the presented DRAs is analyzed. A design guide is presented as well. © 2021 IEEE.
AB - Geometry-induced resonant modes with intrinsic broad beam coverage are synthesized within step-shaped dielectric resonator antennas (DRAs). Following the idea of mode fusion, a synthesized mode inherits and combines the modal features from several conventional ones of regular DRAs. Superior flexibility and design freedom in beam shaping are thus obtained, leading to a 3 dB beamwidth exceeding 200° in both main planes. To form such a broad-beam mode, three regular higher-order modes from rectangular DRAs are chosen and merged. Their modal radiation patterns have fine complementation, meanwhile, they are readily excited by a shared feed. To further demonstrate the mechanism of mode fusion, the modal field distribution of the presented DRAs is analyzed. A design guide is presented as well. © 2021 IEEE.
KW - Dielectric resonator antennas (DRAs)
KW - higher-order modes
KW - mode synthesis
KW - radiation patterns
KW - wide beam
UR - http://www.scopus.com/inward/record.url?scp=85113232294&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85113232294&origin=recordpage
U2 - 10.1109/TAP.2021.3090840
DO - 10.1109/TAP.2021.3090840
M3 - RGC 21 - Publication in refereed journal
SN - 0018-926X
VL - 69
SP - 8866
EP - 8871
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 12
ER -