期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 71, 期 8, 页码 6965-6970出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2023.3281669
关键词
5G; feed structure; millimeter wave (mm-wave); shared structure (SS); sub-6 GHz
This communication proposes a shared structure (SS) antenna design that operates in S/C/K/Ka bands. Resonances in S and C bands are achieved using a stepped impedance slot antenna, which also serves as the ground plane for the K/Ka bands antenna. A novel feed structure is designed to excite three patch elements working at 24, 26, and 28 GHz in the K/Ka bands. The design is compact and accommodates multiple frequency bands, making it suitable for various applications in wireless communication.
A shared structure (SS) antenna design working in S/C/K/Ka bands is proposed in this communication. Resonances in S and C bands are achieved using a stepped impedance slot antenna. The slot antenna also works as the ground plane for the K/Ka bands antenna. For K/Ka bands, a novel feed structure is designed to excite three patch elements working at 24, 26, and 28 GHz. It consists of a single circular loop that can excite multiple antenna elements by identifying suitable feed points based on its current and voltage distribution. The feed structure is simple and compact and requires no additional layer to accommodate it. Measured gains of 3.58 and 4.79 dBi are observed in S and C bands with a bandwidth of 0.27 and 0.9 GHz, respectively. The K/Ka-band antenna has a bandwidth of 7.1 GHz and gains of 7.91, 11.34, and 10.94 dBi at 24, 26, and 28 GHz, respectively. The design has a compact structure and accommodates multiple frequency bands, finding its application in 5G sub-6-GHz communication (3.5 GHz), intelligent transportation systems (5.9 GHz), and 5G millimeter wave (mm-wave) (24, 26, 28 GHz) applications.
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