%0 Journal Article
%T 一种电控复合左右手圆极化漏波天线<br>An Electrically Controlled CRLH-Inspired Circularly Polarized Leaky-Wave Antenna
%A 张群豪
%A 陈晚
%A 吕博
%A 邵晓琪
%A 傅佳辉
%J Journal of Antennas
%P 9-17
%@ 2325-2243
%D 2019
%I Hans Publishing
%R 10.12677/JA.2019.82002
%X <div style=\"text-align:justify;\">
	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。<br />
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.
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%K 圆极化，复合左右手传输线，电控，漏波天线，单电压偏置<br>Circular Polarization (CP)
%K Composite Right/Left-Handed Transmission Line (CRLH-TL)
%K Electrically Controlled
%K Leaky-Wave Antenna (LWA)
%K Single-Voltage Bias
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=31840