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Novel Diplexer with Improved Isolation Using Asymmetric Transmission Zeros Technique

机译:使用非对称传输零点技术改善隔离度的新型双工器

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摘要

High isolation and compact size diplexer with two cascaded triplet sections is presented in this paper. By using the quarter-wavelength resonators and stepped impedance resonator to form cascaded triplets, size reduction is achieved. By exploiting different coupling between the resonators, multiple transmission zeros can be obtained to improved the isolation between the two channels. An experimental diplexer with lower and upper channels centered at 1.8GHz and 2.2GHz is designed to verify the proposed theory. Without extra matching network, the proposed diplexer shows high isolation of greater than 41dB.
机译:本文介绍了具有两个级联三联体部分的高隔离度和紧凑型双工器。通过使用四分之一波长谐振器和步进阻抗谐振器来形成级联三重态,可以实现尺寸的减小。通过利用谐振器之间的不同耦合,可以获得多个传输零点,以改善两个通道之间的隔离度。设计了一个实验性双工器,其上下通道分别位于1.8GHz和2.2GHz,以验证所提出的理论。在没有额外匹配网络的情况下,建议的双工器显示出大于41dB的高隔离度。

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