Design and Validation of a Reconfigurable Single Varactor-Tuned Reflectarray
Design and Validation of a Reconfigurable Single Varactor-Tuned Reflectarray
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DOI：
10.1109/tap.2012.2226229
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发表时间：
2013-02-01
影响因子：
5.7
通讯作者：
Di Massa, Giuseppe
中科院分区：
文献类型：
--
作者：
Venneri, Francesca;Costanzo, Sandra;Di Massa, Giuseppe
本文提出了一种具有全相位调谐范围的单变容二极管孔径耦合反射元件，用于图形可重构应用。充分的相位敏捷性是通过相位调谐线的适当优化实现的，从而提供交替的电感/电容效应，能够避免使用两个变容二极管，通常在类似的现有配置中采用。采用所提出的主动元件结构设计了一个3 × 15散热器的反射样机。此外，在给定h面场的条件下，采用自己的合成方法得到了适当的偏置电压。讨论了波束扫描、多波束和异形波束图的测试实例，以证明该方法的有效性。
An aperture-coupled reflectarray element giving a full phase tuning range with a single varactor diode is proposed in this paper for pattern reconfigurability applications. The full phase agility is achieved by a proper optimization of the phase tuning line, thus providing an alternate inductive/capacitive effect able to avoid the use of two varactor diodes, usually adopted in similar existing configurations. The proposed active element structure is adopted to design a demonstrative reflectarray prototype of 3 x 15 radiators. Furthermore, an own synthesis procedure is applied to obtain the proper biasing voltages giving the prescribed H-plane field. Test examples of beam-scanning, multibeam, and shaped-beam patterns are discussed to demonstrate the effectiveness of the approach.