光学
PIN二极管
宽带
光束转向
二极管
物理
输电线路
极化(电化学)
偏压
带宽(计算)
移相模块
材料科学
光电子学
计算机科学
电压
电气工程
梁(结构)
插入损耗
工程类
电信
物理化学
化学
量子力学
作者
Antonio Clemente,Laurent Dussopt,Ronan Sauleau,Patrick Potier,Philippe Pouliguen
标识
DOI:10.1109/tap.2013.2271493
摘要
A fully electronically reconfigurable 400-element transmitarray is studied numerically and experimentally in X-band. The array operates in linear polarization and consists of 20 × 20 unit-cells. A 1-bit phase resolution has been selected for the unit-cell in order to reduce the complexity of the biasing network and steering logic, the insertion loss and the overall cost of the antenna system. The unit-cell stack-up is simple and is made of four metal layers: active side, biasing lines, ground plane and passive side. Two p-i-n diodes are integrated on the active side of each cell in order to control its transmission phase. The active array contains 800 diodes in total. It demonstrates experimentally pencil beam scanning over a 140 × 80-degree window over a 15.8% fractional bandwidth, with a maximum gain of 22.7 dBi at broadside. We also show that the same antenna array can be used for beam shaping applications (flat-top beam). The experimental results presented between 8 and 12 GHz are in good agreement with the theoretical performance calculated using full-wave electromagnetic simulations and an in-house CAD tool based on analytical modeling.
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