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The Study of a Hairpin Line Resonator Filter Design by Using a J Inverter  

오데레사 (제주국립대학교 자연과학대학 물리학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.6, no.4, 2002 , pp. 589-594 More about this Journal
Abstract
The filter of hairpin type can be designed small but has a demerit which a design method is complex. This paper suggests the method that a hairpin line filter is designed with applying a transmission line method and J inverter circuit, accurately calculated the J value and the b parameter. It is considered about the line have no the mutual coupling element with next line to each other. is calculated a length of electric coupling line about coupling element in each inverter stage from the J value and the b parameter. In order to show the validity of the proposed design method, band pass filter of small hairpin line is designed at center frequency 2.6 GHz, with Serenade 8.0 software tool and the simulation characteristics are compared with design results.
Keywords
J inverter circuit; hairpin line; b parameter; transmission line method; Finite Element Method;
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