Proceedings of the Korean Institute of Navigation and Port Research Conference (한국항해항만학회:학술대회논문집)
- 2006.10a
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- Pages.79-84
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- 2006
A Novel Design of Compact Low-Pass Filter and Its Equivalent Circuit Model
- Li, Rui (Department of Radio Sciences and Engineering, Korea Maritime University) ;
- Kim, Dong-Il (Department of Radio Sciences and Engineering, Korea Maritime University) ;
- Choi, Chang-Mook (Department of Radio Sciences and Engineering, Korea Maritime University) ;
- Song, Young-Man (Department of Radio Sciences and Engineering, Korea Maritime University)
- Published : 2006.10.20
Abstract
A novel design of compact low-pass filter based on microstrip structure and its equivalent-circuit model are developed. The philosophy of the structure behind this novel microstrip low-pass filter is simple as it is composed of a pair of symmetrical parallel coupled-line and an open-stub. With this configuration, a finite attenuation pole near the stopband cutoff frequency is available and adjustable by simply tuning the circuit parameters. Furthermore, the rejection bandwidth of this type of low-pass filter can be extended. In order to validate the feasibility of the proposed design method, a low-pass filter based on a microstrip structure is designed, fabricated, and measured. Experimental results agree very well with the simulation and analytical results.
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