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, PDF,   
作者: 张群豪, 邵晓琪, 傅佳辉：哈尔滨工业大学微波工程系，黑龙江 哈尔滨；陈 晚：哈尔滨工业大学空间环境与物质科学研究院，黑龙江 哈尔滨；吕 博：哈尔滨工程大学物理与光电工程学院，黑龙江 哈尔滨
关键词: 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
摘要: 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。
Abstract: 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.
文章引用：张群豪, 陈晚, 吕博, 邵晓琪, 傅佳辉. 一种电控复合左右手圆极化漏波天线[J]. 天线学报, 2019, 8(2): 9-17. https://doi.org/10.12677/JA.2019.82002

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