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A Harmonic Suppressed Design of Size Reduced Ring-Hybrid Using Folded Line Structure  

Lee Hong-Seop (College of Information Technology, Kangwon National University)
Lee Chul-Heui (College of Information Technology, Kangwon National University)
Hwang Hee-Yong (College of Information Technology, Kangwon National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.9, 2006 , pp. 845-851 More about this Journal
Abstract
Folded lines are applied to design a compact microstrip ring hybrid. Using the proposed structure we achieve both significant size reduction and good harmonic suppression with the same results of conventional ring hybrid at 2.41 GHz. Including the third harmonic frequency, up to 11 GHz band harmonics are suppressed to -20 dB. The size of the proposed ring-hybrid is reduced to one forth of the conventional ring hybrid. The measured frequency responses agree well with simulated ones.
Keywords
Folded Line; Ring Hybrid; Coupler; Size Reduction; Harmonic Suppression; Rat-Race Hybrid;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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