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首页> 外文期刊>International journal of numerical modelling >Dual circularly polarized series-fed patch antenna array integrated with beam switching network
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Dual circularly polarized series-fed patch antenna array integrated with beam switching network

机译：双圆偏振串联滤波天线阵列与波束交换网络集成

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摘要

A reconfigurable patch array antenna exhibiting circular polarization as well as pattern switching capabilities is presented in this work. The proposed 2 x 2 series-fed structure is capable of generating 11 switched beams at a resonant frequency of 2.44 GHz. The work also hypothesis an unsophisticated method polarization and radiation pattern diversity. An effective reduction from 2N to N for feed ports and from N to N/2 for phase shifters has also been reported. The design is realized on a single-layered low-cost FR-4 epoxy laminate having a thickness of 1.6 mm. The performance evaluation of the fabricated prototype exhibits good agreement between the computationally evaluated and the experimentally obtained results, yielding six circularly polarized and five 45 degrees slant polarized switched beams in two-dimensional space with appreciably high gain, acceptable side lobe level, and decent impedance matching characteristics for all constituent ports. In this work, a simple four-port beam switching network has been proposed to synthesize the 11 switched beams at an elevation angle of 0 degrees, +/- 10 degrees and +/- 21 degrees in xoz-plane and yoz-plane with both circular polarizations and 45 degrees slant polarization. It does not require any additional digital circuit or complex geometry as reported in recent works.
机译：在这项工作中介绍了具有圆形偏振的可重新配置的贴片阵列天线以及图案切换能力。所提出的2×2系列馈电结构能够以2.44GHz的谐振频率产生11个开关光束。该工作还假设一种不成熟的方法极化和辐射模式分集。还报道了从2N到N对于进料端口的有效减少，并且来自用于相移器的N至N / 2。该设计是在单层低成本FR-4环氧树脂体上实现，厚度为1.6mm。制造的原型的性能评估在计算评估和实验所得到的结果之间表现出良好的一致性，在二维空间中产生六个圆偏振，并具有明显的高增益，可接受的侧凸水平和体面阻抗所有组成端口的匹配特征。在这项工作中，已经提出了一种简单的四端口波束切换网络，以在XOZ平面和yoz平面中以0度，+/- 10度和+/- 21度的升高角度合成11个开关光束圆偏振和45度倾斜极化。如最近的作品报告的，它不需要任何额外的数字电路或复杂的几何形状。

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