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    • 8. 发明授权
    • Composite right/left (CRLH) couplers
    • 复合右/左(CRLH)耦合器
    • US08072289B2
    • 2011-12-06
    • US12122311
    • 2008-05-16
    • Tatsuo ItohChristophe CalozI-Hsiang LinHiroshi Okabe
    • Tatsuo ItohChristophe CalozI-Hsiang LinHiroshi Okabe
    • H01P5/12H01P5/22
    • H01P5/227
    • High-frequency couplers and coupling techniques are described utilizing artificial composite right/left-handed transmission line (CRLH-TL). Three specific forms of couplers are described; (1) a coupled-line backward coupler is described with arbitrary tight/loose coupling and broad bandwidth; (2) a compact enhanced-bandwidth hybrid ring coupler is described with increased bandwidth and decreased size; and (3) a dual-band branch-line coupler that is not limited to a harmonic relation between the bands. These variations are preferably implemented in a microstrip fabrication process and may use lumped-element components. The couplers and coupling techniques are directed at increasing the utility while decreasing the size of high-frequency couplers, and are suitable for use with separate coupler or couplers integrated within integrated devices.
    • 利用人造复合右/左传输线(CRLH-TL)描述高频耦合器和耦合技术。 描述了三种具体形式的耦合器; (1)耦合线反向耦合器被描述为具有任意的紧/松耦合和宽带宽; (2)以增加的带宽和减小的尺寸描述紧凑的增强带宽混合环耦合器; 和(3)双频分支线耦合器,不限于频带之间的谐波关系。 这些变化优选地在微带制造过程中实现,并且可以使用集总元件部件。 耦合器和耦合技术旨在增加效用,同时降低高频耦合器的尺寸,并且适用于集成在集成器件内的单独的耦合器或耦合器。