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Compact Narrow Open-stub Band-pass Filter using FLCLM and Parallel Coupled line  

Hong, Tae-Ui (Technology Planning Team, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Abstract
In this paper, a compact-narrow open stub band-pass filter with parasitic-signal of low frequency range and second harmonics rejected using the parallel coupled line and FLCLM(Frquency Locked Controlled Length Method) is proposed. The characteristic of the parallel coupled line can be rejection for parasitic-signal of low frequency range and second harmonics. In last filter of experimental results show that insertion loss is 1.2 dB and return loss is 14.8 dB, and the fractional bandwidth is 10 % at the center frequency of 5.8 GHz. In additional, the rejection for parasitic-signal of low frequency range and second harmonics are 28.9 dB and 28.8 dB, respectively.
Keywords
narrow band; open stub; parallel coupled line; FLCLM; rejection;
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Times Cited By KSCI : 2  (Citation Analysis)
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