The week's pick
Reseach Article
Bandstop Filtering Characteristics of a New Spiral Defected Microstrip Structure (DMS)
| International Symposium on Devices MEMS, Intelligent Systems & Communication |
| Foundation of Computer Science USA |
| ISDMISC - Number 1 |
| None 2011 |
| Authors: Susanta Kumar Parui, Somdotta Roy Choudhury, A. Roy, L. Murmu, Santanu Das |
| 76dc2c03-31e3-4fe1-bf53-99d284779a8d |
Susanta Kumar Parui, Somdotta Roy Choudhury, A. Roy, L. Murmu, Santanu Das . Bandstop Filtering Characteristics of a New Spiral Defected Microstrip Structure (DMS). International Symposium on Devices MEMS, Intelligent Systems & Communication. ISDMISC, 1 (None 2011), 17-19.
Abstract
The defected structure in the signal plane of a microstrip line effectively disturbs the shield current distribution and added line inductances and capacitances to the line. These new brand of slow-wave structures are called defected microstrip structure (DMS). We have introduced here a new spiral shaped structure with improved filtering characteristics. The frequency characteristics of the proposed unit show one pole stopband response. The equivalent L C parameters are extracted using proposed equivalent LC model. Two such DMS units are cascaded onto High-Low impedance line to realize a bandstop filter having 20 dB rejection bandwidth of 34% and sharpness factor of 50 dB/GHz at both edges.
References
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