HARMONIC SUPPRESSION OF BRANCH-LINE AND RAT-RACE COUPLER USING COMPLEMENTARY SPILT RING RESONATORS (CSRR) CELL | Zendy

Jian Zhang | Zendy; Xiao Wei Sun | Zendy

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HARMONIC SUPPRESSION OF BRANCH-LINE AND RAT-RACE COUPLER USING COMPLEMENTARY SPILT RING RESONATORS (CSRR) CELL

Author(s) -

Jian Zhang,

Xiao Wei Sun

Publication year - 2008

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl07122702

Subject(s) - resonator , line (geometry) , ring (chemistry) , race (biology) , split ring resonator , harmonic , physics , acoustics , mathematics , optics , chemistry , geometry , biology , botany , organic chemistry

—In this paper, complementary spilt ring resonator (CSRR) is applied to design harmonic suppression microstrip rat-race and branch-line coupler. As the CSRR cell is etched on the ground plane of the substrate, the frequency selective properties have a considerable relation with its geometry parameters, which has been analyzed detailedly. As demonstration, a rat-race and a branch-line coupler are designed and fabricated using conventional printed-circuit board fabrication process. The proposed couplers show the performance as good as that of the corresponding conventional structures, but deep harmonic suppression in addition. The design and simulation have been performed using full-wave EM TOOLS ADS Momentum.

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