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一种电控复合左右手圆极化漏波天线
An Electrically Controlled CRLH-Inspired Circularly Polarized Leaky-Wave Antenna

DOI: 10.12677/JA.2019.82002, PP. 9-17

Keywords: 圆极化，复合左右手传输线，电控，漏波天线，单电压偏置
Circular Polarization (CP), Composite Right/Left-Handed Transmission Line (CRLH-TL), Electrically Controlled, Leaky-Wave Antenna (LWA), Single-Voltage Bias

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Abstract:

本文设计了一种电控圆极化漏波天线，通过在复合左右手传输线结构加载变容二极管，实现波束扫描。天线单元结构由两部分组成：三个定频电扫二极管以及一个实现圆极化辐射的方形贴片。引入了单电压偏置的直流馈线结构，通过均匀偏置电压控制，实现圆极化波束扫描。该天线工作在2.4 GHz，并且实现了从+40？到？17？的连续波束扫描。在不同的扫描角度下，轴比保持在3 dB以下。
An electrically controlled beam-scanning circularly polarized leaky-wave antenna is presented by cascading multiple unit cells of a composite right/left-handed transmission line (CRLH-TL) structure. The antenna unit cell consists of two parts: three varactor diodes, which enable beam electrically steerable at a fixed frequency and a square-shaped patch that is perturbed to stimulate circular polarization radiation. Moreover, a DC feeder of single-voltage bias, which allows all the unit cells to be simply controlled by a single uniform bias voltage, is introduced to steer the beam direction. The proposed antenna operates at 2.4 GHz and beam scans from +40？ to ？17？ continuously. The axial ratio remains below 3 dB at different angles.

References

[1]  Liu, L., Caloz, C. and Itoh, T. (2002) Dominant Mode Leaky-Wave Antenna with Back？re-to-End？re Scanning Capa-bility. Electronics Letters, 38, 1414-1416.
https://doi.org/10.1049/el:20020977
[2]  Dong, Y. and Itoh, T. (2012) Metamaterial-Based Antennas. Proceedings of the IEEE, 100, 2271-2285.
https://doi.org/10.1109/JPROC.2012.2187631
[3]  Jin, C. and Alphones, A. (2012) Leaky-Wave Radiation Be-havior from a Double Periodic Composite Right/Left-Handed Substrate Integrated Waveguide. IEEE Transactions on Antennas and Propagation, 60, 1727-1735.
https://doi.org/10.1109/TAP.2012.2186248
[4]  Zhou, C., Wang, G., Wang, Y., Zong, B. and Ma, J. (2013) CPW-Fed Dual-Band Linearly and Circularly Polarized Antenna Employing Novel Composite Right/Left-Handed Transmission-Line. IEEE Antennas and Wireless Propagation Letters, 12, 1073-1076.
https://doi.org/10.1109/LAWP.2013.2279689
[5]  Lim, S., Caloz, C. and Itoh, T. (2004) Metamaterial-Based Electronically Controlled Transmission-Line Structure as a Novel Leaky-Wave Antenna with Tunable Radiation Angle and Beamwidth. IEEE Transactions on Microwave Theory and Techniques, 52, 2678-2690.
https://doi.org/10.1109/TMTT.2004.838302
[6]  Guzman-Quiros, R., Gomez-Tornero, J.L., Weily, A.R. and Guo, Y.J. (2012) Electronic Full-Space Scanning with 1-D Fabry-Pérot LWA Using Electromagnetic Band-Gap. IEEE Antennas and Wireless Propagation Letters, 11, 1426-1429.
https://doi.org/10.1109/LAWP.2012.2228624
[7]  Suntives, A. and Hum, S.V. (2012) A Fixed-Frequency Beam-Steerable Half-Mode Substrate Integrated Waveguide Leaky-Wave Antenna. IEEE Transactions on Antennas and Propagation, 60, 2540-2544.
https://doi.org/10.1109/TAP.2012.2189726

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