Miniaturization of Branch-Line Coupler Using Composite Right/Left-Handed Transmission Lines with Novel Meander-shaped-slots CSSRR
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A novel compact-size branch-line coupler using composite right/left-handed transmission lines is proposed in this paper. In order to obtain miniaturization, composite right/left-handed transmission lines with novel complementary split single ring resonators which are realized by loading a pair of meander-shaped-slots in the split of the ring are designed. This novel coupler occupies only 22.8% of the area of the conventional approach at 0.7 GHz. The proposed coupler can be implemented by using the standard printed-circuit-board etching processes without any implementation of lumped elements and via-holes, making it very useful for wireless communication systems. The agreement between measured and stimulated results validates the feasible configuration of the proposed coupler.
KeywordsBranch-line coupler, complementary split single ring resonators, composite right/left-handed transmission lines, meander-shaped-slots, miniaturization
Document typePeer reviewed
Document versionFinal PDF
SourceRadioengineering. 2012, vol. 21, č. 2, s. 606-610. ISSN 1210-2512
- 2012/2