Compact Analog Phase Shifters using Thin-Film (Ba,Sr)TiO3 Varactors
Compact Analog Phase Shifters using Thin-Film (Ba,Sr)TiO3 Varactors
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使用薄膜 (Ba,Sr)TiO3 变容二极管的紧凑型模拟移相器
DOI：
10.1109/mwsym.2007.380008
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
R. York
中科院分区：
文献类型：
--
作者：
L.;R. Forse;A. Cardona;T.C. Watson;R. York
本文描述了用薄膜BST变容二极管串联全通网络实现紧凑型360度移相器MMIC。与传统的延迟线结构不同，全通网络提供恒定的相移，插入损耗变化很小。以类似的方式，可以通过具有交错中心频率的级联全通网络来实现非常宽带的移相器。将薄膜BST技术用于变容二极管，已经开发出非常紧凑和低成本的移相器结构。选定的结果显示在1-30 GHz范围内。
This paper describes the realization of compact 360 degree phase-shifter MMICs using thin-film BST varactors in a series cascade of all-pass networks. Unlike conventional delay-line structures, all-pass networks provide constant phase shift with small variation of insertion loss. In similar fashion, very broadband phase-shifters can be implemented by cascading all-pass networks with staggered center-frequencies. Using a thin-film BST technology for the varactors, extremely compact and low-cost phase-shifter structures have been developed. Selected results are shown in the 1-30GHz range.