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Dual-band 3-way power divider and combiner based on CRLH-TLs

机译：基于CRLH-TL的双频3路功率分配器和组合器

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摘要

In this paper, by using composite right and left handed transmission lines and non-radiating CRLH-TLs, a dual-band 3-way series power divider (SPD) is presented. The proposed dual-band divider is designed and fabricated on an inexpensive FR4 substrate of thickness h = 0.79 mm and a relative dielectric constant of epsilon(r) = 4.4 to work at 0.915 and 2.440 GHz. Also, in order to improve the isolation characteristics of this divider, three isolation resistors are implemented among output ports. Derived formulas are presented in details. The dual-band nature of the designed SPD, good input return loss, as well as equal power split among the three output ports, flexibility of spacing the output ports arbitrarily apart, and easy integration with planar devices make the proposed divider well suited for feeding many dual-band microwave circuits, such as multipliers, mixers, and planar array antennas. In addition, due to its excellent return-loss at the output ports and its high isolation, the proposed divider in this paper can be used as a power combiner.
机译：在本文中，通过使用左，右复合传输线和无辐射的CRLH-TL，提出了一种双频带3路串联功率分配器（SPD）。所提出的双频带分频器是在廉价的FR4基板上设计和制造的，该基板的厚度为h = 0.79 mm，epsilon（r）的相对介电常数= 4.4，可在0.915和2.440 GHz下工作。另外，为了改善该分压器的隔离特性，在输出端口之间实现了三个隔离电阻。派生的公式进行了详细介绍。设计的SPD具有双频特性，良好的输入回波损耗以及三个输出端口之间的均等功率分配，任意将输出端口间隔开的灵活性以及易于与平面设备集成的特性，使所建议的分频器非常适合于馈电许多双波段微波电路，例如乘法器，混频器和平面阵列天线。此外，由于其在输出端口的出色回波损耗和高隔离度，本文中提出的分压器可用作功率组合器。

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