Reconfigurable beam shaping antenna with Wilkinson Power Divider at 5.8GHz

M.T. Ali, M. Kamarudin, M. Tan, T. Rahman
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引用次数: 14

Abstract

This paper presents a reconfigurable multiple element microstrip rectangular linear array antenna integrated with radio frequency (RF) switches. The corporate feed design concept is used to excite the linear array antenna that consists of 8 elements of rectangular patches at 5.8 GHz. Two PIN diode switches were deployed at the feeding line to activate the two arrays of patches that is located on the left and right side of the antenna structure. The behavior of the reconfigurable multiple element linear antenna array system has been investigated with respect to beam shaping characteristic. The comparisons of the performance between two structures, with Wilkinson power divider (WPD) and without WPD are discussed in this paper. Two different beam patterns were achieved through the reconfigurable antenna at different number of elements design that incorporates with PIN diode switches and modified WPD concept. The simulations and the measurement results for 4 and 8 elements array antenna structure are presented.
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带威尔金森功率分配器的5.8GHz可重构波束整形天线
提出了一种集成射频开关的可重构多元微带矩形线阵天线。采用公司馈电设计理念激励由8个矩形贴片组成的线阵天线,频率为5.8 GHz。在馈线处部署了两个PIN二极管开关,以激活位于天线结构左侧和右侧的两个贴片阵列。研究了可重构多单元线性天线阵列系统的波束整形特性。本文讨论了有威尔金森功率分配器和无威尔金森功率分配器两种结构的性能比较。通过结合PIN二极管开关和改进WPD概念的不同单元数的可重构天线设计,实现了两种不同的波束方向图。给出了4元和8元阵列天线结构的仿真和测量结果。
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