Abstract:This work presents a technique to produce radio frequency (RF) and microwave devices with relative permittivity (ε r ) variations in specific locations. It is based on additive manufacturing, using two or more filaments, with different permittivities, which are introduced into the print head and mixed with designed proportions. While other techniques can vary the dielectric permittivity using air cavities along the object, our proposal allows varying permittivity without cavities, which provides devices with m… Show more
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