一种紧凑的DMS三带带阻滤波器,带u槽,用于通信系统

W. Y. Sam, Z. Zakaria, M. A. Mutalib, M. Fadhli, A. R. Othman, A. Isa
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引用次数: 11

摘要

本文提出了一种结构紧凑的带阻滤波器,采用缺陷微带结构(DMS)产生三频带抑制响应。为了验证窄陷口DMS的概念,通过仿真验证了其在4.0 GHz中心频率上的工作。DMS结构被嵌入在传输线的中间,以便拒绝任何可能干扰任何通信系统的不希望的信号。该设计基于Roger Duroid ro450b进行仿真,其厚度为0.508 mm,介电常数为3.48。这种类型的滤波器在任何射频/微波通信系统中都是有用的,特别是在宽带频谱中消除任何不需要的信号。在保持其优异性能的同时,还可以使用该技术实现整体物理和成本的降低。
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A compact DMS triple-band bandstop filter with U-slots for communication systems
This paper presents compact structure of bandstop filter with Defected Microstrip Structure (DMS) to produce a triple - band reject response. To prove the concept of the narrow notched DMS, the operating on centre frequency of 4.0 GHz is demonstrated and validated through simulation. The DMS structure is embedded in the middle of transmission lines in order to reject any undesired signals which may interfere with any communication systems. The design was simulated based on Roger Duroid RO4350B with a thickness of 0.508 mm and dielectric constant of 3.48. This type of filter is useful in any RF/ microwave communication systems, particularly to eliminate any undesired signals in wideband spectrum. While maintaining its excellent performance, the overall physical and cost reduction can also be achieved using this technique.
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