Defected Ground Structured Reconfigurable Bandstop Filter Based on Slot-Line Resonator

唐慧; 陈建新; 周立衡; 章国安; 包志华

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Defected Ground Structured Reconfigurable Bandstop Filter Based on Slot-Line Resonator

更新时间：2026-09-14

- Defected Ground Structured Reconfigurable Bandstop Filter Based on Slot-Line Resonator
- 槽线式缺陷地结构的可重构带阻滤波器
- Vol. 34, Issue 4, Pages: 463-467(2013)
- 作者机构：
  
  南通大学电子信息学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2013
- 稿件说明：
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唐慧, 陈建新, 周立衡, et al. Defected Ground Structured Reconfigurable Bandstop Filter Based on Slot-Line Resonator[J]. 2013, 34(4): 463-467.
DOI：

唐慧, 陈建新, 周立衡, et al. Defected Ground Structured Reconfigurable Bandstop Filter Based on Slot-Line Resonator[J]. 2013, 34(4): 463-467. DOI：

摘要

针对射频微波领域中对频率连续可调的要求

提出了一种缺陷地结构(Defected Ground Structure

简称DGS)的微带可重构带阻滤波器

其DGS谐振器由半波长槽线谐振器实现.利用槽线理论分析了DGS谐振器

根据槽线谐振器的特性推导出了带阻滤波器的设计方法

进一步确定了变容二极管的加载位置

改变了变容二极管的工作状态

能获得滤波器工作频率可调与阻带关闭两种功能

并且设计的阻带可调范围达到26%(1.49～1.145GHz)

大大宽于传统的DGS带阻滤波器.设计并制作了紧凑型的槽线式DGS可重构带阻滤波器

其测量结果与仿真结果相吻合.

Abstract

Meeting the requirements of continuously tunable operation frequency in RF/microwave applications

an investigation of a reconfigurable bandstop filter using defected ground structure(DGS) resonator was presented which was realized by a half guided-wavelength slot-line resonator.By using the slot-line features

the design rules for the proposed bandstop filter was established and the location of the loading varactor was easily determined for the bandstop filter.Tunability of the operating frequency and stopband switching ability of the bandstop filter were obtained by controlling the status of the varactor.And a 26%(1.49

.145 GHz) tuning range was achieved and much larger than the range of traditional DGS bandstop filters.Finally

a compact reconfigurable bandstop filter was designed and fabricated.The simulated and measured results show good agreement.

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references

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