Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3063122
Keywords
coplanar waveguides; metallic thin films; microwave antennas; transfer moulding
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We report a replica molding process for simultaneously forming a three dimensional metal pattern on the surface of molded polymer microstructures. This technique uses noncovalent surface forces to guide the transfer of thin metal films from the three dimensional features of high aspect ratio poly(dimethylsiloxane) micromolds to polymeric replicates. The utility of this technique has been demonstrated by the fabrication of organic coplanar waveguides integrated with vertical Ka-band monopole antenna radiators. These microwave systems show good performance with over 18% bandwidth and greater than 16 dB return loss, demonstrating the versatility of this process.
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