This paper explained the work theory and the process of design about the parallel coupled line directional coupler.

阐述了平行耦合线定向耦合器的工作原理和设计过程。

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The design principle is analysed for band-pass filters using three parallel coupled-lines and the related design curves are given.

本文分析了三线平行耦合线带通滤波器的设计原理，给出了有关设计曲线。

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The parasitic passband of microstrip bandpass filters using parallel coupled SIR (Stepped Inpedance Resonators) is analyzed in this paper.

本文分析微带SIR(阶梯阻抗谐振器)带通滤波电路的寄生通带问题。

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Coupled with snowboarder Jasey Jay Anderson's win in the parallel giant slalom and Canada's win in men's curling, the Canadians now lead the gold medal count with 13, the most the host nation has ever earned at an Olympics - winter or summer.

VOA: standard.2010.02.28

Andrew Kohut, president of the Pew Research Centre, sees a parallel with 1981, when polls showed high approval for Reagan coupled with anxiety about his policies, such as cuts to Social Security (government-funded pensions) and welfare.

ECONOMIST: Government v market in America