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http://dx.doi.org/10.6109/jkiice.2011.15.4.795

Design of the 1.8GHz Strip-line Isolator with high attenuations at harmonic band  

Yoo, Young-Cheol (동국대학교)
Eom, Ki-Hwan (동국대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.4, 2011 , pp. 795-802 More about this Journal
Abstract
In this paper, the detailed design procedure of the Y-junction stripline isolator self-contained the filter circuit in the center conductor in order to maximize attenuations below value of 30 dB at 3rd order harmonics is presented. The HFSS is used to simulate 1.8GHz band isolator and the results are compared with the measurement data. These results confirms that the designed stripline isolator is effective in achieving high attenuation above -30 dB at 3rd order harmonics. And it is obtained that the harmonic band of isolator using the ferrite of 0.16T is moved far from operating frequency more 1.2 GHz than one using the ferrite of 0.12T.
Keywords
Isolator; Harmonics; Ferrite; Attenuations;
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