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Feng, Botao; Li, Liangying; Chung, Kwok L.; Li, Yansheng
IEEE transactions on antennas and propagation, 2021-Jan., 2021-1-00, 20210101, Letnik: 69, Številka: 1Journal Article
A dual circularly polarized (CP) magnetoelectric dipole antenna is presented in this article. The dual-CP antenna was devised to form a circular ring shape and fabricated using 3-D printing technology. To overcome the conflict between high (broadside) gain and wide (half-power) beamwidth, a new beamwidth broadening technique was proposed. Twelve meta-columns were placed evenly along the circumference close to the ring-shaped dipole. A design approach is elaborated, where the number and size of meta-columns were decided according to the design curves. Symmetrical beamwidth of 108° in orthogonal planes with a broadside gain of 6 dBic was achieved across a wide effective bandwidth from 3.2 to 5.4 GHz (51%), sufficiently covering the 5G new radio (NR) bands: <inline-formula> <tex-math notation="LaTeX">n77, n78, n79 </tex-math></inline-formula>. The antenna owns a compact size of <inline-formula> <tex-math notation="LaTeX">0.83 \times 0.83 \times 0.18\lambda ^{3} </tex-math></inline-formula> at 4.15 GHz. A planar subarray composed of four dual-CP elements was also investigated and compared with the existing arrays.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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