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Directional Coupler Design Using Coplanar Waveguide.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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Coplanar Waveguide CPW is a surface transmission line having properties that make it attractive for microwave integrated circuit applications. The CPW was investigated primarily to develop a design procedure for a directional coupler however, it was necessary to first determine the effects of a finite substrate thickness on the effective dielectric constant. A Schwarz-Christoffel transformation was used to map the CPW boundaries into a rectangular region to simplify the analysis. Modified author abstract
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